Registry data as of Aug 27, 2026

Organization NPI lookup

Hospitals, clinics, pharmacies and group practices bill under Type 2 organization NPIs. The federal registry holds 1,959,633 active ones under 162,073 legal names; 28,446 names hold 5 or more NPIs, usually one per location.

CMS NPPES registry, monthly file of Aug 9, 2026 · method

Walgreen Co holds the most, 11,140

  1. Walgreen Co11,140
  2. Wal-Mart Stores East Lp4,721
  3. Costco Wholesale Corporation1,913
  4. Luxottica Of America INC1,854
  5. Walmart INC1,434
  6. Cvs Pharmacy INC1,392
  7. National Vision, INC1,279
  8. Publix Super Markets INC1,164
  9. Total Renal Care INC972
  10. Genoa Healthcare LLC834
  11. Holiday Cvs LLC776
  12. Wal-Mart Stores, INC754

Source: CMS NPPES monthly file of Aug 9, 2026: active organization NPIs grouped by legal name.

Why one organization has many NPIs

An organization may register a separate NPI for each location or unit that bills on its own, so a pharmacy chain can hold thousands. To find the NPI for the location you visit, search the name with its city.

An organization NPI identifies who bills; it is not a facility license. Each clinician who works there has their own NPI and state license.

All 28,446 organizations with 5 or more NPIs →

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov).