Health Service Clinic/Center: how many are there, and how many are in private practice?

National totals

Reading the sole-proprietor share

For this specialty, 271 records, or 2.8%, are flagged as sole proprietors in NPPES. That field is self-reported, so it is an imperfect proxy for private practice and does not measure all independent practices or ownership arrangements. Treat the share as an NPPES organizational-status indicator, not as a definitive estimate of how many Health Service Clinic/Center providers work in private practice.

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.
• - An NPI record is not necessarily a distinct clinic location, organization, or practicing provider.
• - Counts reflect active NPPES records and can change as records are added, updated, or deactivated.
• - NUCC publishes no official definition for this classification, and taxonomy selection may not fully describe an entity's services.
• 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