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Healthcare providers in District of Columbia: NPI counts by specialty

This page summarizes 50,721 active NPI records with a practice location in the District of Columbia, based on the CMS NPPES registry. It highlights the share flagged as sole proprietors and the specialties with the largest recorded counts, helping practice managers, prospective physicians, and analysts assess the local provider mix. The largest specialties are Home Health Aide (9,336), Personal Care Attendant (5,055), Case Manager/Care Coordinator (3,089), Student in an Organized Health Care Education/Training Program (2,907), and Clinical Social Worker (1,949).

Statewide totals

Active NPI records50,721
Registered sole proprietors17,750 (35.0%)

Here, 17,750 records, or 35.0%, are flagged as sole proprietors. This flag is self-reported and is an imperfect proxy for private practice, so it should be interpreted as a registry classification rather than a direct measure of independent practice.

Largest specialties in this state

SpecialtyActive NPIs
Home Health Aide9,336
Personal Care Attendant5,055
Case Manager/Care Coordinator3,089
Student in an Organized Health Care Education/Training Program2,907
Clinical Social Worker1,949
Internal Medicine Physician1,060
Mental Health Counselor907
Registered Nurse782
Physical Therapist749
Social Worker744
Behavior Technician735
Community Health Worker669
Speech-Language Pathologist650
Professional Counselor640
Family Nurse Practitioner632
Pharmacist626
Pediatrics Physician613
Clinical Psychologist603
Home Health Agency596
Physician Assistant537
General Practice Dentistry488
Community/Behavioral Health Agency487
Psychiatry Physician465
Dentist425
Occupational Therapist404
Family Medicine Physician389
Licensed Practical Nurse379
Psychologist376
Emergency Medicine Physician335
Nurse's Aide326
Registered Dietitian316
Anesthesiology Physician290
Counselor271
Nurse Practitioner256
Specialist244
Obstetrics & Gynecology Physician243
Other Technician227
Case Management Agency213
School Psychologist206
School Social Worker195

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

What does the provider count represent?

It represents active NPI records with a practice location in the District of Columbia. The records do not necessarily represent unique people or organizations.

Which specialties have the largest recorded counts?

The largest are Home Health Aide (9,336), Personal Care Attendant (5,055), Case Manager/Care Coordinator (3,089), Student in an Organized Health Care Education/Training Program (2,907), and Clinical Social Worker (1,949).

How should the sole-proprietor share be interpreted?

The 35.0% share is based on a self-reported registry flag. It is an imperfect proxy for private practice and should not be treated as a direct measure of independent practice.

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