Statewide totals
| Active NPI records | 202,238 |
| Registered sole proprietors | 45,090 (22.3%) |
In Maryland, 45,090 records, or 22.3%, are flagged as sole proprietors. This flag is self-reported and is an imperfect proxy for private practice, so it should not be read as a direct count of independently owned practices or clinicians working alone.
Largest specialties in this state
| Specialty | Active NPIs |
|---|---|
| Behavior Technician | 20,365 |
| Clinical Social Worker | 9,712 |
| Student in an Organized Health Care Education/Training Program | 6,921 |
| Physical Therapist | 6,813 |
| Home Health Aide | 6,764 |
| Internal Medicine Physician | 5,716 |
| Pharmacist | 5,573 |
| Mental Health Counselor | 5,258 |
| Speech-Language Pathologist | 4,688 |
| Professional Counselor | 4,338 |
| Family Nurse Practitioner | 4,209 |
| Social Worker | 4,155 |
| Occupational Therapist | 3,299 |
| General Practice Dentistry | 3,213 |
| Physician Assistant | 3,162 |
| Registered Nurse | 3,062 |
| Family Medicine Physician | 2,817 |
| Community/Behavioral Health Agency | 2,759 |
| Psychiatric/Mental Health Nurse Practitioner | 2,528 |
| Dentist | 2,454 |
| Pediatrics Physician | 2,347 |
| Home Health Agency | 2,098 |
| Specialist | 1,873 |
| Psychiatry Physician | 1,826 |
| Addiction (Substance Use Disorder) Counselor | 1,821 |
| Mental Health Clinic/Center (Including Community Mental Health Center) | 1,744 |
| Durable Medical Equipment & Medical Supplies | 1,735 |
| Clinical Psychologist | 1,728 |
| Behavior Analyst | 1,584 |
| Anesthesiology Physician | 1,539 |
| Optometrist | 1,534 |
| Acupuncturist | 1,498 |
| Counselor | 1,465 |
| Case Manager/Care Coordinator | 1,434 |
| Chiropractor | 1,409 |
| Nurse Practitioner | 1,400 |
| Psychologist | 1,384 |
| Obstetrics & Gynecology Physician | 1,339 |
| Physical Therapy Assistant | 1,256 |
| Emergency Medicine Physician | 1,244 |
Common questions
How many active NPI records have a practice location in Maryland?
The registry includes 202,238 active NPI records with a practice location in Maryland.
Which specialties have the largest counts on this page?
The largest listed specialties are Behavior Technician with 20,365 records, Clinical Social Worker with 9,712, Student in an Organized Health Care Education/Training Program with 6,921, Physical Therapist with 6,813, and Home Health Aide with 6,764.
What does the sole-proprietor figure mean?
A total of 45,090 records, or 22.3%, are flagged as sole proprietors. The flag is self-reported and is an imperfect proxy for private practice.
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