{
  "name": "Data behind: What's in the NPI database download: NPPES file contents",
  "description": "47 aggregate figures: 29 record counts by entity type, enumeration year, practice state and number of taxonomy slots filled from the CMS NPPES September 2026 file (records to 13 September 2026), 15 deactivation-report counts by deactivation year and deactivation date from the CMS NPPES Deactivated NPI Report (14 September 2026), and 3 file-structure figures counted from the header row of the CMS NPPES September 2026 file. One row per published figure, plus one row per derived figure with its formula and inputs. Counts are NPI records, not people or practices.",
  "dateModified": "2026-09-14",
  "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": "NPPES file records: individual providers (NPI-1)",
      "attribute": "Records by entity type",
      "scenario": "",
      "value": "7,471,371 records (76.2% of the 9,798,758 records in the file)",
      "number": 7471371,
      "unit": "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": "r02",
      "kind": "observed",
      "entity": "NPPES file records: organizations (NPI-2)",
      "attribute": "Records by entity type",
      "scenario": "",
      "value": "1,972,058 records (20.1% of the 9,798,758 records in the file)",
      "number": 1972058,
      "unit": "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": "r03",
      "kind": "observed",
      "entity": "NPPES file records: deactivated NPIs (entity type blank)",
      "attribute": "Records by entity type",
      "scenario": "",
      "value": "355,329 records (3.6% of the 9,798,758 records in the file)",
      "number": 355329,
      "unit": "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": "r04",
      "kind": "observed",
      "entity": "Active NPI records (individuals plus organizations)",
      "attribute": "Active NPI records",
      "scenario": "",
      "value": "9,443,429 active NPI records",
      "number": 9443429,
      "unit": "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": "provenance.md#registry-files",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r05",
      "kind": "observed",
      "entity": "NPIs deactivated in 2025",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "34,080 NPIs in the 14 September 2026 deactivation report",
      "number": 34080,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r06",
      "kind": "observed",
      "entity": "NPIs deactivated in 2024",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "30,749 NPIs in the 14 September 2026 deactivation report",
      "number": 30749,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r07",
      "kind": "observed",
      "entity": "NPIs deactivated in 2022",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "29,462 NPIs in the 14 September 2026 deactivation report",
      "number": 29462,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r08",
      "kind": "observed",
      "entity": "NPIs deactivated in 2023",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "28,198 NPIs in the 14 September 2026 deactivation report",
      "number": 28198,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r09",
      "kind": "observed",
      "entity": "NPIs deactivated in 2026",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "26,157 NPIs in the 14 September 2026 deactivation report",
      "number": 26157,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r10",
      "kind": "observed",
      "entity": "NPIs deactivated in 2020",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "25,631 NPIs in the 14 September 2026 deactivation report",
      "number": 25631,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r11",
      "kind": "observed",
      "entity": "NPIs deactivated in 2021",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "23,249 NPIs in the 14 September 2026 deactivation report",
      "number": 23249,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r12",
      "kind": "observed",
      "entity": "NPIs deactivated in 2019",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "21,994 NPIs in the 14 September 2026 deactivation report",
      "number": 21994,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r13",
      "kind": "observed",
      "entity": "NPIs deactivated in 2018",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "19,666 NPIs in the 14 September 2026 deactivation report",
      "number": 19666,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r14",
      "kind": "observed",
      "entity": "NPIs deactivated in 2017",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "15,938 NPIs in the 14 September 2026 deactivation report",
      "number": 15938,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r15",
      "kind": "observed",
      "entity": "NPIs deactivated in 2016",
      "attribute": "Deactivations per year",
      "scenario": "",
      "value": "13,989 NPIs in the 14 September 2026 deactivation report",
      "number": 13989,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r16",
      "kind": "observed",
      "entity": "NPIs listed in the 14 September 2026 Deactivated NPI Report",
      "attribute": "NPIs in the deactivation report",
      "scenario": "",
      "value": "355,330 NPIs, with deactivation dates from 23 May 2005 to 14 September 2026",
      "number": 355330,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "provenance.md#deactivation-report",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r17",
      "kind": "observed",
      "entity": "NPIs in the report deactivated from 23 May 2005 to 31 December 2015",
      "attribute": "Report NPIs deactivated before 2016",
      "scenario": "",
      "value": "86,217 NPIs",
      "number": 86217,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "provenance.md#deactivation-report",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r18",
      "kind": "observed",
      "entity": "NPIs in the report deactivated from 1 January 2016 to 14 September 2026",
      "attribute": "Report NPIs deactivated from 2016",
      "scenario": "",
      "value": "269,113 NPIs",
      "number": 269113,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "provenance.md#deactivation-report",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r19",
      "kind": "observed",
      "entity": "Report NPIs that are deactivated (blank entity type) rows of the September 2026 monthly file",
      "attribute": "Report NPIs matched to deactivated file rows",
      "scenario": "",
      "value": "355,329 of the 355,330 report NPIs",
      "number": 355329,
      "unit": "NPIs",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "provenance.md#deactivation-report",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "r20",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2016",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "318,014 active NPI records",
      "number": 318014,
      "unit": "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": "r21",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2017",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "329,676 active NPI records",
      "number": 329676,
      "unit": "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": "r22",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2018",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "390,724 active NPI records",
      "number": 390724,
      "unit": "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": "r23",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2019",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "399,632 active NPI records",
      "number": 399632,
      "unit": "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": "r24",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2020",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "427,166 active NPI records",
      "number": 427166,
      "unit": "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": "r25",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2021",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "463,573 active NPI records",
      "number": 463573,
      "unit": "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": "r26",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2022",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "468,076 active NPI records",
      "number": 468076,
      "unit": "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": "r27",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2023",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "509,596 active NPI records",
      "number": 509596,
      "unit": "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": "r28",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2024",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "547,706 active NPI records",
      "number": 547706,
      "unit": "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": "r29",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2025",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "631,058 active NPI records",
      "number": 631058,
      "unit": "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": "r30",
      "kind": "observed",
      "entity": "NPPES records first enumerated in 2026",
      "attribute": "Active records by enumeration year",
      "scenario": "",
      "value": "490,534 active NPI records (to 12 September)",
      "number": 490534,
      "unit": "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": "r31",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in CA",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "1,188,147 of the 9,443,429 active records (12.6%)",
      "number": 1188147,
      "unit": "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": "r32",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in NY",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "658,554 of the 9,443,429 active records (7.0%)",
      "number": 658554,
      "unit": "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": "r33",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in FL",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "654,298 of the 9,443,429 active records (6.9%)",
      "number": 654298,
      "unit": "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": "r34",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in TX",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "608,782 of the 9,443,429 active records (6.4%)",
      "number": 608782,
      "unit": "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": "r35",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in OH",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "408,060 of the 9,443,429 active records (4.3%)",
      "number": 408060,
      "unit": "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": "r36",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in MI",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "358,035 of the 9,443,429 active records (3.8%)",
      "number": 358035,
      "unit": "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": "r37",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in PA",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "336,445 of the 9,443,429 active records (3.6%)",
      "number": 336445,
      "unit": "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": "r38",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in IL",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "319,057 of the 9,443,429 active records (3.4%)",
      "number": 319057,
      "unit": "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": "r39",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in NC",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "277,639 of the 9,443,429 active records (2.9%)",
      "number": 277639,
      "unit": "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": "r40",
      "kind": "observed",
      "entity": "Active NPI records with a practice location in MA",
      "attribute": "Active records per practice state",
      "scenario": "",
      "value": "259,106 of the 9,443,429 active records (2.7%)",
      "number": 259106,
      "unit": "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": "r41",
      "kind": "observed",
      "entity": "Active NPI records filling one taxonomy slot",
      "attribute": "Taxonomy slots filled per record",
      "scenario": "",
      "value": "7,654,220 of the 9,443,429 active records (81.1%)",
      "number": 7654220,
      "unit": "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": "Active NPI records filling two taxonomy slots",
      "attribute": "Taxonomy slots filled per record",
      "scenario": "",
      "value": "1,243,106 of the 9,443,429 active records (13.2%)",
      "number": 1243106,
      "unit": "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": "Active NPI records filling three taxonomy slots",
      "attribute": "Taxonomy slots filled per record",
      "scenario": "",
      "value": "343,088 of the 9,443,429 active records (3.6%)",
      "number": 343088,
      "unit": "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": "Active NPI records filling four or more taxonomy slots",
      "attribute": "Taxonomy slots filled per record",
      "scenario": "",
      "value": "203,015 of the 9,443,429 active records (2.1%)",
      "number": 203015,
      "unit": "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": "Each NPI record in the monthly file: columns in each row",
      "attribute": "Monthly file structure",
      "scenario": "",
      "value": "330 columns in each row",
      "number": 330,
      "unit": "",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES monthly file header row (September 2026 release)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r46",
      "kind": "observed",
      "entity": "Each NPI record in the monthly file: other provider identifier slots",
      "attribute": "Monthly file structure",
      "scenario": "",
      "value": "50 other provider identifier slots",
      "number": 50,
      "unit": "",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES monthly file header row (September 2026 release)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "r47",
      "kind": "observed",
      "entity": "Each NPI record in the monthly file: taxonomy-code slots (each with a license number, license state and primary flag)",
      "attribute": "Monthly file structure",
      "scenario": "",
      "value": "15 taxonomy-code slots (each with a license number, license state and primary flag)",
      "number": 15,
      "unit": "",
      "scope": "",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "",
      "expression": "",
      "source_owner": "Provyx count of the CMS NPPES monthly file header row (September 2026 release)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-13",
      "fixture": false
    },
    {
      "id": "d01",
      "kind": "derived",
      "entity": "NPIs deactivated in the 3 heaviest years (2025, 2024 and 2022)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "94,291 NPIs",
      "number": 94291.0,
      "unit": "NPIs",
      "scope": "inputs r05, r06, r07",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "34,080 + 30,749 + 29,462",
      "expression": "34080+30749+29462",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "d02",
      "kind": "derived",
      "entity": "NPIs deactivated in the 5 heaviest years (2025, 2024, 2022, 2023 and 2026)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "148,646 NPIs",
      "number": 148646.0,
      "unit": "NPIs",
      "scope": "inputs r05, r06, r07, r08, r09",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "34,080 + 30,749 + 29,462 + 28,198 + 26,157",
      "expression": "34080+30749+29462+28198+26157",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "d03",
      "kind": "derived",
      "entity": "NPIs deactivated in the other 6 years",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "120,467 NPIs",
      "number": 120467.0,
      "unit": "NPIs",
      "scope": "inputs r10, r11, r12, r13, r14, r15",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "sum of the 6 smaller figures",
      "expression": "25631+23249+21994+19666+15938+13989",
      "source_owner": "Provyx aggregation of the CMS NPPES Deactivated NPI Report (14 September 2026)",
      "source_url": "https://download.cms.gov/nppes/NPI_Files.html",
      "observed_at": "2026-09-14",
      "fixture": false
    },
    {
      "id": "d04",
      "kind": "derived",
      "entity": "Top 3 by Active records per practice state combined (CA, NY and FL)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "2,500,999 records",
      "number": 2500999.0,
      "unit": "records",
      "scope": "inputs r31, r32, r33",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "1,188,147 + 658,554 + 654,298",
      "expression": "1188147+658554+654298",
      "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": "d05",
      "kind": "derived",
      "entity": "Top 5 by Active records per practice state combined (CA, NY, FL, TX and OH)",
      "attribute": "Derived figure",
      "scenario": "",
      "value": "3,517,841 records",
      "number": 3517841.0,
      "unit": "records",
      "scope": "inputs r31, r32, r33, r34, r35",
      "input_price_scope": "",
      "scenario_scope": "",
      "formula": "1,188,147 + 658,554 + 654,298 + 608,782 + 408,060",
      "expression": "1188147+658554+654298+608782+408060",
      "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
    }
  ]
}