Voluntary or Charitable Agency: how many are there, and how many are in private practice?

National totals

Reading the sole-proprietor share

For this classification, 139 records, or 4.7%, are flagged as sole proprietors in NPPES. That percentage should not be read as the share of organizations in private practice because the field is self-reported and is an imperfect proxy that may not reflect ownership, operating structure, or how services are delivered.

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.
• NUCC publishes no official definition for this taxonomy, so the label alone does not specify the services, ownership, or organizational structure represented.
• These figures count active NPI records with this primary taxonomy, not a direct measure of distinct locations, workforce size, patient volume, or services delivered.
• 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