Primary Care Clinic/Center: how many are there, and how many are in private practice?

National totals

Reading the sole-proprietor share

For this specialty, 453 active records, or 2.7%, are flagged as sole proprietors in NPPES. Because this is a self-reported NPPES field, it is an imperfect proxy for private practice and does not by itself establish ownership, employment model, independence, or whether a clinic operates with other entities.

By state

New NPI registrations by year

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

• The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
• A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
• • NPPES status, taxonomy, and sole-proprietor fields can be updated, so these figures are a point-in-time view.
• • An NPI record is not necessarily a unique physical clinic, and one organization may have multiple NPIs or locations.
• • NUCC has published no official definition for this classification, so taxonomy assignment may not capture every primary care operation or distinguish practice models.
• Providers are counted once, by their primary taxonomy code only.

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions