Addiction (Substance Use Disorder) Registered Nurse: how many are there, and how many are in private practice?

National totals

Reading the sole-proprietor share

For this specialty, 27.2% of records are flagged as sole proprietors in NPPES. The flag is a self-reported NPPES field and is an imperfect proxy for private practice because it does not establish that a nurse owns a practice, works independently, or provides services outside an employed setting. Use it as a registration characteristic, not as a definitive measure of private-practice clinicians.

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 an identifier and may not equal one unique, currently practicing clinician.
• The primary taxonomy may not capture every service or role held by a provider.
• 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