Walgreen Co.: NPI records, locations and last-update dates

Where the records are

Practice locations are distinct street-address and ZIP pairs across each record's primary practice address and its secondary practice locations. Florida has the most records (855); the ten largest cities are listed under the table.

A practice address can carry more than one NPI-2 record: 726 addresses here have two or more records (1,470 records in all). That is why the record count is higher than the location count. 404 of the 410 Clinical Medical Laboratory records share an address with another record.

Locations by state

State page with the full location directory: Florida. Records for every other state are in the CSV download.

Largest cities by number of records

• Chicago, IL171
• Houston, TX121
• Baltimore, MD91
• Brooklyn, NY86
• San Francisco, CA65
• Charlotte, NC58
• Miami, FL57
• San Antonio, TX56
• Las Vegas, NV54
• Bronx, NY50

Provider and taxonomy mix

Each NPI-2 record names a primary taxonomy code from the NUCC code set. 12 codes appear across the 11,124 records; the ten most common are below, and 2 records use other codes.

• Pharmacy (333600000X)10,417
• Clinical Medical Laboratory (291U00000X)410
• Community/Retail Pharmacy (3336C0003X)222
• Durable Medical Equipment & Medical Supplies (332B00000X)55
• Clinic Pharmacy (3336C0002X)7
• Pharmacist (183500000X)6
• Mail Order Pharmacy (3336M0002X)2
• Institutional Pharmacy (3336I0012X)1
• Specialty Pharmacy (3336S0011X)1
• Non-Pharmacy Dispensing Site (332900000X)1

Other names on file

NPPES lets each record list other names the organization uses or has used, such as a store or department name. The entries below are those names as filed; NPPES does not say why a name was added. NPPES lists 846 other-name entries for these NPIs under the 25 most frequent names (names with fewer entries are not counted here). Most frequent: Rite Aid (485); RITE AID (289); WALGREEN DRUG STORE (6); WALGREENS #12584 (3); WALGREENS #12287 (3); Walgreens #15189 (3).

When the records were last updated

15.2% of Walgreen Co.'s records have a last-update date before 1 Oct 2021, five or more years before the analysis date. In the same September 2026 file, the share is 58.8% for all 1,972,058 active NPI-2 records and 50.6% for the 29,667 active NPI-2 records whose primary taxonomy is Pharmacy, this organization's most common. Our NPI Staleness Report explains the measure. The oldest last-update date on these records is from 2007; 8.2% were never updated after the NPI was issued.

The last-update date shows when the record was last changed in NPPES. It does not show whether the address or phone number is still correct, so the older a record's last update, the more an address or phone number is worth checking before use.

Affiliated NPI-2 records

The first 25 of 11,124 records by NPI. The CSV download has all of them with addresses, phone numbers, taxonomy and dates.

Change log

Tracked since the September 2026 NPPES file (records through 13 Sep 2026). NPPES publishes weekly update files between monthly releases; each re-issues every record that changed. This page compares those records with the monthly file.

The first weekly window overlaps the monthly cut, so its records match the monthly file. From the October file on, this log adds month-over-month additions, deactivations and address changes.

How it compares

The five organization names with the most practice-location rows in the file (all records under the same legal name, whoever the authorized official), with this organization highlighted.

• Walgreen Co11,138
• Walmart Stores East LP4,677
• Costco Wholesale Corporation1,917
• Luxottica Of America Inc1,855
• Walmart Inc1,390

Questions about Walgreen Co.'s NPI records

How many NPI numbers does Walgreen Co. have?

11,124 active organization (NPI-2) records in the September 2026 NPPES file carry the legal business name WALGREEN CO. They list 10,392 distinct practice addresses, including 14 secondary practice locations.

In how many states does Walgreen Co. have NPI records?

49 states, DC, Puerto Rico and the U.S. Virgin Islands. The largest is Florida with 855 records (7.7%).

What provider taxonomy do Walgreen Co. NPI records use?

12 primary taxonomy codes appear. The most common is Pharmacy (333600000X) on 10,417 records (93.6%).

When were Walgreen Co.'s NPPES records last updated?

15.2% have a last-update date before 1 Oct 2021, five or more years before 1 Oct 2026; for all active NPI-2 records in the same file the share is 58.8%. The median record was last updated 2.3 years ago; the most recent update is dated 9 Sep 2026.

When were Walgreen Co.'s NPIs first issued?

Enumeration dates run from 17 Sep 2005 to 20 Aug 2026. 8.2% of the records still show a last-update date equal to the enumeration date.

Did any Walgreen Co. records change after the September file?

The three NPPES weekly update files through 27 Sep 2026 re-issued 209 of these records; 83 carried a newer last-update date and 0 were new NPIs.

Where does this data come from?

The CMS NPPES full replacement file for September 2026 (records through 13 Sep 2026), joined to the NUCC taxonomy code set version 26.1. Deactivated NPIs are excluded. The method section lists every rule.

Sources and method

• Source: CMS NPPES Data Dissemination, full replacement monthly file V.2 for September 2026 (NPPES_Data_Dissemination_September_2026_V2.zip, sha256 6573e0d148c18a9a9d974248d77447744bd9666aa288c38d13ebf3d766e3cec4, records through 13 Sep 2026), plus the three weekly update files dated 7–27 Sep 2026.
• Taxonomy names: NUCC Health Care Provider Taxonomy code set 26.1. Primary taxonomy is the code flagged primary on the record (code 1 if none is flagged).
• Scope: active NPI-2 records whose legal business name, upper-cased with punctuation removed, equals “WALGREEN CO”. Deactivated NPIs are excluded; NPPES blanks their names, so they cannot be attributed to an organization.
• Locations: distinct pairs of normalized first address line and five-digit ZIP across primary and secondary practice addresses.
• Last-update age: years from each record's last-update date to 1 Oct 2026; “last NPPES update 5+ years ago” means a last-update date before 1 Oct 2021. The NPI Staleness Report explains the measure.
• Selection: we rank the 1,444,908 legal business names on active NPI-2 records by practice-location rows; this name ranks first. The rank counts legal names, not corporate families: a company that registers each store under one legal name ranks high, and a company that files under several legal names appears once for each.