Research / NPIPulse
Group Practices & Clinics from the NPI Registry: 2026 statistics from 12,635 public records
California leads with 2,221 of 12,635 records (17.6%), ahead of New York with 2,192 (17.3%) (as of 2026-11-03; source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)).
Data as of · Compiled by Zalwin from CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)
Key findings
- Zalwin's NPIPulse dataset holds 12,635 NPIPulse records dated 2005-05-24 to 2026-10-30 (as of 2026-11-03; source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)). #
- California leads with 2,221 of 12,635 records (17.6%), ahead of New York with 2,192 (17.3%) (as of 2026-11-03; source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)). #
- The most common specialty is Chiropractic practices: 2,308 of 12,635 records (18.3%) (as of 2026-11-03; source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)). #
- 43 of 12,635 records (0.3%) are dated within the 30 days before 2026-11-03 (source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)). #
- In California, the leading specialty is Chiropractic practices with 393 of 2,221 records (17.7%) (as of 2026-11-03; source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services)). #
NPIPulse records by state
| Group | Records | Share |
|---|---|---|
| California | 2,221 | 17.6% |
| New York | 2,192 | 17.3% |
| Florida | 2,070 | 16.4% |
| Arizona | 1,945 | 15.4% |
| Texas | 1,782 | 14.1% |
| Illinois | 1,495 | 11.8% |
| Missouri | 104 | 0.8% |
| Ohio | 91 | 0.7% |
| Indiana | 77 | 0.6% |
| Michigan | 64 | 0.5% |
| Pennsylvania | 63 | 0.5% |
| Wisconsin | 59 | 0.5% |
| Washington | 43 | 0.3% |
| Colorado | 42 | 0.3% |
| Georgia | 41 | 0.3% |
NPIPulse records by specialty
| Group | Records | Share |
|---|---|---|
| Chiropractic practices | 2,308 | 18.3% |
| Clinics and centers | 2,288 | 18.1% |
| Dental practices | 2,190 | 17.3% |
| Optometry practices | 2,072 | 16.4% |
| Physical therapy practices | 2,067 | 16.4% |
| Dermatology practices | 1,710 | 13.5% |
Methodology and data provenance
- Sample: 12,635 public records dated 2005-05-24 to 2026-10-30; illustrative samples excluded.
- Source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services). Refreshed automatically about every 72 hours; figures above are as of 2026-11-03.
- Shares are of all records in the dataset; totals and medians use only records with a stated amount.
- Organization-level data only. Informational; verify individual records at the official source.
Cite this study
Zalwin Research, "NPIPulse statistics" (data as of 2026-11-03), https://zalwin.com/research/npipulse