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

National totals

What this specialty covers

A facility or distinct part of one used for the diagnosis and treatment of outpatients. "Clinic/Center" is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).

Reading the sole-proprietor share

For Clinic/Center, the sole-proprietor share describes records whose NPPES data identify them as sole proprietors, not all organizations that might be considered private practice. Because the taxonomy is often used for facilities and distinct outpatient units, ownership, employment model, and operating structure may vary within the group. Treat the share as a self-reported, imperfect proxy for private practice, and do not use it to infer why the pattern exists.

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.
• The count covers active NPI records with this taxonomy as primary, not necessarily unique facilities, organizations, or clinicians.
• State counts reflect NPI records associated with a state and may not represent the full geographic footprint of 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