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

National totals

Reading the sole-proprietor share

For this specialty, 77 of 13,389 active records, or 0.6%, are flagged as sole proprietors. That field is self-reported in NPPES, so it is an imperfect proxy for private practice and should not be read as a direct ownership count.

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.
• Counts refer to active NPI records with this as the primary taxonomy, not necessarily unique facilities, locations, or organizations.
• NUCC publishes no official definition for this taxonomy, so its classification boundaries may not match every operational definition.
• 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