Clinical Social Worker: how many are there, and how many are in private practice?

National totals

What this specialty covers

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Reading the sole-proprietor share

For this specialty, the sole-proprietor share is an administrative measure: 122,428 active records, or 40.2%, are flagged that way in NPPES. The flag is a self-reported NPPES field, so it is an imperfect proxy for private practice and does not show whether a clinician owns a practice, works independently, or provides services in more than one setting. Use it to describe how records are classified, not to infer the specialty's business structure or patient volume.

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.
• - NPI counts describe active records with this primary taxonomy and may not equal a count of distinct clinicians currently providing services.
• - Providers may report multiple specialties, and taxonomy information can change as NPPES records are updated.
• 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