Statewide totals
| Active NPI records | 188,143 |
| Registered sole proprietors | 41,336 (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
| Specialty | Active NPIs |
|---|---|
| Behavior Technician | 11,129 |
| Mental Health Counselor | 10,006 |
| Clinical Social Worker | 7,030 |
| Physical Therapist | 6,720 |
| Professional Counselor | 6,307 |
| Registered Nurse | 5,275 |
| Student in an Organized Health Care Education/Training Program | 5,102 |
| Speech-Language Pathologist | 4,599 |
| Family Medicine Physician | 4,545 |
| Pharmacist | 4,461 |
| Physician Assistant | 3,836 |
| Chiropractor | 3,718 |
| General Practice Dentistry | 3,599 |
| Massage Therapist | 3,301 |
| Internal Medicine Physician | 3,215 |
| Family Nurse Practitioner | 3,212 |
| Addiction (Substance Use Disorder) Counselor | 3,199 |
| Counselor | 3,142 |
| Occupational Therapist | 3,049 |
| Dentist | 2,610 |
| Behavior Analyst | 2,455 |
| Case Manager/Care Coordinator | 2,238 |
| Social Worker | 2,063 |
| Optometrist | 2,038 |
| Specialist | 1,971 |
| Clinical Psychologist | 1,811 |
| Pediatrics Physician | 1,688 |
| Marriage & Family Therapist | 1,545 |
| Emergency Medicine Physician | 1,498 |
| Acupuncturist | 1,459 |
| Registered Dietitian | 1,453 |
| Durable Medical Equipment & Medical Supplies | 1,444 |
| Anesthesiology Physician | 1,361 |
| Psychologist | 1,316 |
| Nurse Practitioner | 1,299 |
| Home Health Agency | 1,255 |
| Dental Hygienist | 1,244 |
| Community/Behavioral Health Agency | 1,210 |
| Obstetrics & Gynecology Physician | 1,206 |
| Medical Physician Assistant | 1,152 |
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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