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Healthcare providers in Colorado: NPI counts by specialty

This page summarizes active NPI records in the CMS NPPES registry that have a practice location in Colorado. It includes 188,143 records and shows the self-reported sole-proprietor flag, which appears on 41,336 records, or 22.0%. The largest listed specialties are Behavior Technician (11,129), Mental Health Counselor (10,006), Clinical Social Worker (7,030), Physical Therapist (6,720), and Professional Counselor (6,307).

Statewide totals

Active NPI records188,143
Registered sole proprietors41,336 (22.0%)

The 22.0% share means 41,336 of the 188,143 active records carry a sole-proprietor flag. This flag is self-reported and is an imperfect proxy for private practice, so it should not be treated as a complete measure of independent practice.

Largest specialties in this state

SpecialtyActive NPIs
Behavior Technician11,129
Mental Health Counselor10,006
Clinical Social Worker7,030
Physical Therapist6,720
Professional Counselor6,307
Registered Nurse5,275
Student in an Organized Health Care Education/Training Program5,102
Speech-Language Pathologist4,599
Family Medicine Physician4,545
Pharmacist4,461
Physician Assistant3,836
Chiropractor3,718
General Practice Dentistry3,599
Massage Therapist3,301
Internal Medicine Physician3,215
Family Nurse Practitioner3,212
Addiction (Substance Use Disorder) Counselor3,199
Counselor3,142
Occupational Therapist3,049
Dentist2,610
Behavior Analyst2,455
Case Manager/Care Coordinator2,238
Social Worker2,063
Optometrist2,038
Specialist1,971
Clinical Psychologist1,811
Pediatrics Physician1,688
Marriage & Family Therapist1,545
Emergency Medicine Physician1,498
Acupuncturist1,459
Registered Dietitian1,453
Durable Medical Equipment & Medical Supplies1,444
Anesthesiology Physician1,361
Psychologist1,316
Nurse Practitioner1,299
Home Health Agency1,255
Dental Hygienist1,244
Community/Behavioral Health Agency1,210
Obstetrics & Gynecology Physician1,206
Medical Physician Assistant1,152

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 Colorado total represent?

It represents 188,143 active NPI records with a practice location in Colorado in the CMS NPPES registry. The count is for records, not necessarily unique people or organizations.

Which specialties have the largest counts?

The five largest listed specialties are Behavior Technician (11,129), Mental Health Counselor (10,006), Clinical Social Worker (7,030), Physical Therapist (6,720), and Professional Counselor (6,307).

How should the sole-proprietor figure be used?

41,336 records, or 22.0%, are flagged as sole proprietors. Because the flag is self-reported and an imperfect proxy for private practice, it should be used as an indicator rather than a definitive count of private practices.

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