{
  "name": "Data behind: Dental email list: how many US dental providers are in NPPES",
  "description": "45 NPI counts by entity type, classification, taxonomy code, practice state and time since last update from the CMS NPPES September 2026 file (records to 13 September 2026). One row per published figure, plus one row per derived figure with its formula and inputs. Taxonomy codes are self-reported; counts are NPI records, not people.",
  "dateModified": "2026-09-13",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "fixture": false,
  "columns": [
    "id",
    "kind",
    "entity",
    "attribute",
    "scenario",
    "value",
    "number",
    "unit",
    "scope",
    "input_price_scope",
    "scenario_scope",
    "formula",
    "expression",
    "source_owner",
    "source_url",
    "observed_at",
    "fixture"
  ],
  "grain": "one row per aggregate group (each published figure), plus one row per derived figure with its formula and inputs",
  "rows": [
    {
      "id": "r01",
      "kind": "observed",
      "entity": "Active individual NPIs whose primary taxonomy is in the Dental Providers grouping",
      "attribute": "Total dental provider NPIs",
      "scenario": "",
      "value": "294,428 active individual dental-provider NPIs",
      "number": 294428,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r02",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Dentist",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "274,573 of the 294,428 active individual dental-provider NPIs (93.3%)",
      "number": 274573,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r03",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Dental Hygienist",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "16,175 of the 294,428 active individual dental-provider NPIs (5.5%)",
      "number": 16175,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r04",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Dental Assistant",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "2,866 of the 294,428 active individual dental-provider NPIs (1.0%)",
      "number": 2866,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r05",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Denturist",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "454 of the 294,428 active individual dental-provider NPIs (0.2%)",
      "number": 454,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r06",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Dental Therapist",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "206 of the 294,428 active individual dental-provider NPIs (0.1%)",
      "number": 206,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r07",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Advanced Practice Dental Therapist",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "86 of the 294,428 active individual dental-provider NPIs (0.0%)",
      "number": 86,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r08",
      "kind": "observed",
      "entity": "Dental providers whose primary taxonomy classification is Dental Laboratory Technician",
      "attribute": "Dental providers per classification",
      "scenario": "",
      "value": "68 of the 294,428 active individual dental-provider NPIs (0.0%)",
      "number": 68,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r09",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223G0001X (General Practice)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "126,633 of the 274,573 active individual dentist NPIs (46.1%)",
      "number": 126633,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r10",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 122300000X (Dentist, no specialization)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "94,649 of the 274,573 active individual dentist NPIs (34.5%)",
      "number": 94649,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r11",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223X0400X (Orthodontics and Dentofacial Orthopedics)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "13,722 of the 274,573 active individual dentist NPIs (5.0%)",
      "number": 13722,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r12",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223P0221X (Pediatric Dentistry)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "11,041 of the 274,573 active individual dentist NPIs (4.0%)",
      "number": 11041,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r13",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223S0112X (Oral and Maxillofacial Surgery)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "8,555 of the 274,573 active individual dentist NPIs (3.1%)",
      "number": 8555,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r14",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223E0200X (Endodontics)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "6,755 of the 274,573 active individual dentist NPIs (2.5%)",
      "number": 6755,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r15",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223P0300X (Periodontics)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "6,689 of the 274,573 active individual dentist NPIs (2.4%)",
      "number": 6689,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r16",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223P0700X (Prosthodontics)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "3,949 of the 274,573 active individual dentist NPIs (1.4%)",
      "number": 3949,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r17",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223D0001X (Dental Public Health)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "1,073 of the 274,573 active individual dentist NPIs (0.4%)",
      "number": 1073,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r18",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223P0106X (Oral and Maxillofacial Pathology)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "675 of the 274,573 active individual dentist NPIs (0.2%)",
      "number": 675,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r19",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223D0004X (Dental Anesthesiology)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "398 of the 274,573 active individual dentist NPIs (0.1%)",
      "number": 398,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r20",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223X0008X (Oral and Maxillofacial Radiology)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "197 of the 274,573 active individual dentist NPIs (0.1%)",
      "number": 197,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r21",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 1223X2210X (Orofacial Pain)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "187 of the 274,573 active individual dentist NPIs (0.1%)",
      "number": 187,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r22",
      "kind": "observed",
      "entity": "Dentists whose primary taxonomy code is 125Q00000X (Oral Medicine)",
      "attribute": "Dentists per taxonomy code",
      "scenario": "",
      "value": "50 of the 274,573 active individual dentist NPIs (0.0%)",
      "number": 50,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r23",
      "kind": "observed",
      "entity": "Dentists practising in CA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "39,655 of the 274,573 active individual dentist NPIs (14.4%)",
      "number": 39655,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r24",
      "kind": "observed",
      "entity": "Dentists practising in TX",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "21,055 of the 274,573 active individual dentist NPIs (7.7%)",
      "number": 21055,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r25",
      "kind": "observed",
      "entity": "Dentists practising in NY",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "18,002 of the 274,573 active individual dentist NPIs (6.6%)",
      "number": 18002,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r26",
      "kind": "observed",
      "entity": "Dentists practising in FL",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "16,751 of the 274,573 active individual dentist NPIs (6.1%)",
      "number": 16751,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r27",
      "kind": "observed",
      "entity": "Dentists practising in IL",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "11,446 of the 274,573 active individual dentist NPIs (4.2%)",
      "number": 11446,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r28",
      "kind": "observed",
      "entity": "Dentists practising in PA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "10,137 of the 274,573 active individual dentist NPIs (3.7%)",
      "number": 10137,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r29",
      "kind": "observed",
      "entity": "Dentists practising in MI",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "8,781 of the 274,573 active individual dentist NPIs (3.2%)",
      "number": 8781,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r30",
      "kind": "observed",
      "entity": "Dentists practising in NJ",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "8,775 of the 274,573 active individual dentist NPIs (3.2%)",
      "number": 8775,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r31",
      "kind": "observed",
      "entity": "Dentists practising in MA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "8,626 of the 274,573 active individual dentist NPIs (3.1%)",
      "number": 8626,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r32",
      "kind": "observed",
      "entity": "Dentists practising in OH",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "8,334 of the 274,573 active individual dentist NPIs (3.0%)",
      "number": 8334,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r33",
      "kind": "observed",
      "entity": "Dentists practising in NC",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "7,740 of the 274,573 active individual dentist NPIs (2.8%)",
      "number": 7740,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r34",
      "kind": "observed",
      "entity": "Dentists practising in WA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "7,427 of the 274,573 active individual dentist NPIs (2.7%)",
      "number": 7427,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r35",
      "kind": "observed",
      "entity": "Dentists practising in VA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "7,341 of the 274,573 active individual dentist NPIs (2.7%)",
      "number": 7341,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r36",
      "kind": "observed",
      "entity": "Dentists practising in GA",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "6,636 of the 274,573 active individual dentist NPIs (2.4%)",
      "number": 6636,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r37",
      "kind": "observed",
      "entity": "Dentists practising in CO",
      "attribute": "Dentists per practice state",
      "scenario": "",
      "value": "5,696 of the 274,573 active individual dentist NPIs (2.1%)",
      "number": 5696,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r38",
      "kind": "observed",
      "entity": "Active individual dentist NPIs with a practice location outside the 50 states and DC",
      "attribute": "Dentists outside the 50 states and DC",
      "scenario": "",
      "value": "3,128 active individual dentist NPIs in Puerto Rico and other US territories, at military (APO/FPO) codes or with a non-US or blank practice location",
      "number": 3128,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r39",
      "kind": "observed",
      "entity": "Active NPIs with a Dentist primary taxonomy, individual (NPI-1)",
      "attribute": "Dentist-coded NPIs by entity type",
      "scenario": "",
      "value": "274,573 of the 385,355 active NPIs with a Dentist primary taxonomy (71.3%)",
      "number": 274573,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r40",
      "kind": "observed",
      "entity": "Active NPIs with a Dentist primary taxonomy, organization (NPI-2)",
      "attribute": "Dentist-coded NPIs by entity type",
      "scenario": "",
      "value": "110,782 of the 385,355 active NPIs with a Dentist primary taxonomy (28.7%)",
      "number": 110782,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r41",
      "kind": "observed",
      "entity": "Dentist NPI records last updated under 1 year before 1 October 2026 (last updated within five years of 1 October 2026)",
      "attribute": "Update age of dentist NPI records",
      "scenario": "",
      "value": "27,582 of the 274,573 active individual dentist NPI records (10.0%)",
      "number": 27582,
      "unit": "NPI records",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r42",
      "kind": "observed",
      "entity": "Dentist NPI records last updated 1 to 3 years before 1 October 2026 (last updated within five years of 1 October 2026)",
      "attribute": "Update age of dentist NPI records",
      "scenario": "",
      "value": "30,396 of the 274,573 active individual dentist NPI records (11.1%)",
      "number": 30396,
      "unit": "NPI records",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r43",
      "kind": "observed",
      "entity": "Dentist NPI records last updated 3 to 5 years before 1 October 2026 (last updated within five years of 1 October 2026)",
      "attribute": "Update age of dentist NPI records",
      "scenario": "",
      "value": "25,347 of the 274,573 active individual dentist NPI records (9.2%)",
      "number": 25347,
      "unit": "NPI records",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r44",
      "kind": "observed",
      "entity": "Dentist NPI records last updated 5 to 10 years before 1 October 2026 (last updated five or more years before 1 October 2026)",
      "attribute": "Update age of dentist NPI records",
      "scenario": "",
      "value": "38,222 of the 274,573 active individual dentist NPI records (13.9%)",
      "number": 38222,
      "unit": "NPI records",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r45",
      "kind": "observed",
      "entity": "Dentist NPI records last updated 10 years or more before 1 October 2026 (last updated five or more years before 1 October 2026)",
      "attribute": "Update age of dentist NPI records",
      "scenario": "",
      "value": "153,026 of the 274,573 active individual dentist NPI records (55.7%)",
      "number": 153026,
      "unit": "NPI records",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d01",
      "kind": "derived",
      "entity": "Top 3 by Dental providers per classification combined (Dentist, Dental Hygienist and Dental Assistant)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "293,614 NPIs",
      "number": 293614.0,
      "unit": "NPIs",
      "scope": "inputs r02, r03, r04",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "274,573 + 16,175 + 2,866",
      "expression": "274573+16175+2866",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d02",
      "kind": "derived",
      "entity": "Top 3 by Dental providers per classification: combined share of the 294,428 active individual dental-provider NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "99.7%",
      "number": 99.7,
      "unit": "%",
      "scope": "inputs r01, r02, r03, r04",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "293,614 ÷ 294,428 × 100 (the 294,428 active individual dental-provider NPIs)",
      "expression": "(274573+16175+2866)/294428*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d03",
      "kind": "derived",
      "entity": "Top 5 by Dental providers per classification combined (Dentist, Dental Hygienist, Dental Assistant, Denturist and Dental Therapist)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "294,274 NPIs",
      "number": 294274.0,
      "unit": "NPIs",
      "scope": "inputs r02, r03, r04, r05, r06",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "274,573 + 16,175 + 2,866 + 454 + 206",
      "expression": "274573+16175+2866+454+206",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d04",
      "kind": "derived",
      "entity": "Top 5 by Dental providers per classification: combined share of the 294,428 active individual dental-provider NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "99.9%",
      "number": 99.9,
      "unit": "%",
      "scope": "inputs r01, r02, r03, r04, r05, r06",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "294,274 ÷ 294,428 × 100 (the 294,428 active individual dental-provider NPIs)",
      "expression": "(274573+16175+2866+454+206)/294428*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d05",
      "kind": "derived",
      "entity": "The 2 outside the top 5 by Dental providers per classification combined",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "154 NPIs",
      "number": 154.0,
      "unit": "NPIs",
      "scope": "inputs r07, r08",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "sum of the 2 smaller figures",
      "expression": "86+68",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d06",
      "kind": "derived",
      "entity": "The 2 outside the top 5 by Dental providers per classification: combined share of the 294,428 active individual dental-provider NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.1%",
      "number": 0.1,
      "unit": "%",
      "scope": "inputs r01, r07, r08",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "154 ÷ 294,428 × 100 (the 294,428 active individual dental-provider NPIs)",
      "expression": "(86+68)/294428*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d07",
      "kind": "derived",
      "entity": "Top 3 by Dentists per taxonomy code combined (1223G0001X (General Practice), 122300000X (Dentist, no specialization) and 1223X0400X (Orthodontics and Dentofacial Orthopedics))",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "235,004 NPIs",
      "number": 235004.0,
      "unit": "NPIs",
      "scope": "inputs r09, r10, r11",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "126,633 + 94,649 + 13,722",
      "expression": "126633+94649+13722",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d08",
      "kind": "derived",
      "entity": "Top 3 by Dentists per taxonomy code: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "85.6%",
      "number": 85.6,
      "unit": "%",
      "scope": "inputs r02, r09, r10, r11",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "235,004 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(126633+94649+13722)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d09",
      "kind": "derived",
      "entity": "Top 5 by Dentists per taxonomy code combined (1223G0001X (General Practice), 122300000X (Dentist, no specialization), 1223X0400X (Orthodontics and Dentofacial Orthopedics), 1223P0221X (Pediatric Dentistry) and 1223S0112X (Oral and Maxillofacial Surgery))",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "254,600 NPIs",
      "number": 254600.0,
      "unit": "NPIs",
      "scope": "inputs r09, r10, r11, r12, r13",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "126,633 + 94,649 + 13,722 + 11,041 + 8,555",
      "expression": "126633+94649+13722+11041+8555",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d10",
      "kind": "derived",
      "entity": "Top 5 by Dentists per taxonomy code: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "92.7%",
      "number": 92.7,
      "unit": "%",
      "scope": "inputs r02, r09, r10, r11, r12, r13",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "254,600 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(126633+94649+13722+11041+8555)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d11",
      "kind": "derived",
      "entity": "The 9 outside the top 5 by Dentists per taxonomy code combined",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "19,973 NPIs",
      "number": 19973.0,
      "unit": "NPIs",
      "scope": "inputs r14, r15, r16, r17, r18, r19, r20, r21, r22",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "sum of the 9 smaller figures",
      "expression": "6755+6689+3949+1073+675+398+197+187+50",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d12",
      "kind": "derived",
      "entity": "The 9 outside the top 5 by Dentists per taxonomy code: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "7.3%",
      "number": 7.3,
      "unit": "%",
      "scope": "inputs r02, r14, r15, r16, r17, r18, r19, r20, r21, r22",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "19,973 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(6755+6689+3949+1073+675+398+197+187+50)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d13",
      "kind": "derived",
      "entity": "General Practice: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "46.1%",
      "number": 46.1,
      "unit": "%",
      "scope": "inputs r02, r09",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "126,633 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(126633)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d14",
      "kind": "derived",
      "entity": "Dentist, no specialization: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "34.5%",
      "number": 34.5,
      "unit": "%",
      "scope": "inputs r02, r10",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "94,649 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(94649)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d15",
      "kind": "derived",
      "entity": "Orthodontics and Dentofacial Orthopedics: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "5.0%",
      "number": 5.0,
      "unit": "%",
      "scope": "inputs r02, r11",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "13,722 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(13722)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d16",
      "kind": "derived",
      "entity": "Pediatric Dentistry: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "4.0%",
      "number": 4.0,
      "unit": "%",
      "scope": "inputs r02, r12",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "11,041 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(11041)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d17",
      "kind": "derived",
      "entity": "Oral and Maxillofacial Surgery: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "3.1%",
      "number": 3.1,
      "unit": "%",
      "scope": "inputs r02, r13",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "8,555 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(8555)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d18",
      "kind": "derived",
      "entity": "Endodontics: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "2.5%",
      "number": 2.5,
      "unit": "%",
      "scope": "inputs r02, r14",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "6,755 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(6755)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d19",
      "kind": "derived",
      "entity": "Periodontics: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "2.4%",
      "number": 2.4,
      "unit": "%",
      "scope": "inputs r02, r15",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "6,689 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(6689)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d20",
      "kind": "derived",
      "entity": "Prosthodontics: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "1.4%",
      "number": 1.4,
      "unit": "%",
      "scope": "inputs r02, r16",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "3,949 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(3949)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d21",
      "kind": "derived",
      "entity": "Dental Public Health: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.4%",
      "number": 0.4,
      "unit": "%",
      "scope": "inputs r02, r17",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "1,073 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(1073)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d22",
      "kind": "derived",
      "entity": "Oral and Maxillofacial Pathology: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.2%",
      "number": 0.2,
      "unit": "%",
      "scope": "inputs r02, r18",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "675 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(675)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d23",
      "kind": "derived",
      "entity": "Dental Anesthesiology: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.1%",
      "number": 0.1,
      "unit": "%",
      "scope": "inputs r02, r19",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "398 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(398)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d24",
      "kind": "derived",
      "entity": "Oral and Maxillofacial Radiology: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.1%",
      "number": 0.1,
      "unit": "%",
      "scope": "inputs r02, r20",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "197 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(197)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d25",
      "kind": "derived",
      "entity": "Orofacial Pain: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.1%",
      "number": 0.1,
      "unit": "%",
      "scope": "inputs r02, r21",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "187 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(187)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d26",
      "kind": "derived",
      "entity": "Oral Medicine: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "0.0%",
      "number": 0.0,
      "unit": "%",
      "scope": "inputs r02, r22",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "50 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(50)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d27",
      "kind": "derived",
      "entity": "Top 3 by Dentists per practice state combined (CA, TX and NY)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "78,712 NPIs",
      "number": 78712.0,
      "unit": "NPIs",
      "scope": "inputs r23, r24, r25",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "39,655 + 21,055 + 18,002",
      "expression": "39655+21055+18002",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d28",
      "kind": "derived",
      "entity": "Top 3 by Dentists per practice state: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "28.7%",
      "number": 28.7,
      "unit": "%",
      "scope": "inputs r02, r23, r24, r25",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "78,712 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(39655+21055+18002)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d29",
      "kind": "derived",
      "entity": "Top 5 by Dentists per practice state combined (CA, TX, NY, FL and IL)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "106,909 NPIs",
      "number": 106909.0,
      "unit": "NPIs",
      "scope": "inputs r23, r24, r25, r26, r27",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "39,655 + 21,055 + 18,002 + 16,751 + 11,446",
      "expression": "39655+21055+18002+16751+11446",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d30",
      "kind": "derived",
      "entity": "Top 5 by Dentists per practice state: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "38.9%",
      "number": 38.9,
      "unit": "%",
      "scope": "inputs r02, r23, r24, r25, r26, r27",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "106,909 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(39655+21055+18002+16751+11446)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d31",
      "kind": "derived",
      "entity": "The 15 listed by Dentists per practice state combined",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "186,402 NPIs",
      "number": 186402.0,
      "unit": "NPIs",
      "scope": "inputs r23, r24, r25, r26, r27, r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "sum of the 15 listed figures",
      "expression": "39655+21055+18002+16751+11446+10137+8781+8775+8626+8334+7740+7427+7341+6636+5696",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d32",
      "kind": "derived",
      "entity": "Outside the 15 listed by Dentists per practice state (the 274,573 active individual dentist NPIs)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "88,171 NPIs",
      "number": 88171.0,
      "unit": "NPIs",
      "scope": "inputs r02, r23, r24, r25, r26, r27, r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "274,573 − 186,402",
      "expression": "274573-(39655+21055+18002+16751+11446+10137+8781+8775+8626+8334+7740+7427+7341+6636+5696)",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d33",
      "kind": "derived",
      "entity": "Outside the 15 listed by Dentists per practice state: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "32.1%",
      "number": 32.1,
      "unit": "%",
      "scope": "inputs r02, r23, r24, r25, r26, r27, r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "88,171 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(274573-(39655+21055+18002+16751+11446+10137+8781+8775+8626+8334+7740+7427+7341+6636+5696))/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d34",
      "kind": "derived",
      "entity": "Outside the top 5 by Dentists per practice state (the 274,573 active individual dentist NPIs)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "167,664 NPIs",
      "number": 167664.0,
      "unit": "NPIs",
      "scope": "inputs r02, r23, r24, r25, r26, r27",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "274,573 − 106,909",
      "expression": "274573-(39655+21055+18002+16751+11446)",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d35",
      "kind": "derived",
      "entity": "Outside the top 5 by Dentists per practice state: share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "61.1%",
      "number": 61.1,
      "unit": "%",
      "scope": "inputs r02, r23, r24, r25, r26, r27",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "167,664 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(274573-(39655+21055+18002+16751+11446))/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d36",
      "kind": "derived",
      "entity": "The 10 outside the top 5 by Dentists per practice state combined",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "79,493 NPIs",
      "number": 79493.0,
      "unit": "NPIs",
      "scope": "inputs r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "sum of the 10 smaller figures",
      "expression": "10137+8781+8775+8626+8334+7740+7427+7341+6636+5696",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d37",
      "kind": "derived",
      "entity": "The 10 outside the top 5 by Dentists per practice state: combined share of the 274,573 active individual dentist NPIs",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "29.0%",
      "number": 29.0,
      "unit": "%",
      "scope": "inputs r02, r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "79,493 ÷ 274,573 × 100 (the 274,573 active individual dentist NPIs)",
      "expression": "(10137+8781+8775+8626+8334+7740+7427+7341+6636+5696)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d38",
      "kind": "derived",
      "entity": "Jurisdictions outside the 15 listed practice states",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "36 of 51 jurisdictions (50 states and DC), not included in this comparison",
      "number": 36,
      "unit": "",
      "scope": "inputs r23, r24, r25, r26, r27, r28, r29, r30, r31, r32, r33, r34, r35, r36, r37",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "51 jurisdictions (50 states and DC) − 15 listed",
      "expression": "51-15",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d39",
      "kind": "derived",
      "entity": "Dentist NPI records last updated five or more years before 1 October 2026",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "191,248 NPI records",
      "number": 191248.0,
      "unit": "NPI records",
      "scope": "inputs r44, r45",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "153,026 + 38,222",
      "expression": "153026+38222",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d40",
      "kind": "derived",
      "entity": "Share of dentist NPI records last updated five or more years before 1 October 2026",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "69.7%",
      "number": 69.7,
      "unit": "%",
      "scope": "inputs r02, r44, r45",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "191,248 ÷ 274,573 × 100 (the 274,573 active individual dentist NPI records)",
      "expression": "(153026+38222)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d41",
      "kind": "derived",
      "entity": "Dentist NPI records last updated within five years of 1 October 2026",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "83,325 NPI records",
      "number": 83325.0,
      "unit": "NPI records",
      "scope": "inputs r41, r42, r43",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "30,396 + 27,582 + 25,347",
      "expression": "30396+27582+25347",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d42",
      "kind": "derived",
      "entity": "Share of dentist NPI records last updated within five years of 1 October 2026",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "30.3%",
      "number": 30.3,
      "unit": "%",
      "scope": "inputs r02, r41, r42, r43",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "83,325 ÷ 274,573 × 100 (the 274,573 active individual dentist NPI records)",
      "expression": "(30396+27582+25347)/274573*100",
      "source_owner": "Provyx aggregation of the CMS NPPES monthly file (September 2026 release, records to 13 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    }
  ]
}