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

National totals

Reading the sole-proprietor share

For this specialty, 39 records, or 0.9%, carry the NPPES sole-proprietor flag. That field is self-reported and is an imperfect proxy for private practice because it does not by itself show ownership, independence, physician control, or whether a center is hospital- or corporate-affiliated.

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 the primary classification, not every organization or location that provides radiology services.
• NUCC publishes no official definition for this taxonomy, so organizations may apply the label differently.
• 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