NPPES file of Aug 9, 2026

Doctors and health care providers in Maryland

159,954 individual NPPES records list a practice address in Maryland, 2,588 per 100,000 residents, above the 2,176 across the 50 states and D.C.; records with an MD or DO credential: 443 per 100,000, against 375 nationally. Licenses are checked on the Maryland Board of Physicians search.

CMS NPPES registry, file of Aug 9, 2026; HHS-OIG LEIE of Sep 10, 2026; 2023 Census estimates · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).
Maryland license search Maryland Board of Physicians: the official search for a license's status and public orders. Open the Maryland license search

Internal Medicine is Maryland's largest physician specialty

26,533 records in Maryland list a physician taxonomy (allopathic or osteopathic, NUCC 207 and 208) as their primary type. The eight largest specialties, each linked to its Maryland list:

  1. Internal Medicine3,904
  2. Family Medicine1,912
  3. Pediatrics1,842
  4. Psychiatry1,451
  5. Anesthesiology1,253
  6. Emergency Medicine1,190
  7. Obstetrics & Gynecology1,034
  8. Diagnostic Radiology877

Source: CMS NPPES flagged primary taxonomy, physician codes 207 and 208, file of Aug 9, 2026.

Across every provider type, Behavior Technician is the largest group

  1. Behavior Technician25,139
  2. Clinical Social Worker9,007
  3. Home Health Aide7,038
  4. Physical Therapist6,177
  5. Students in training5,632
  6. Pharmacist5,562
  7. Speech-Language Pathologist4,509
  8. Mental Health Counselor4,201

Baltimore has the most records

  1. Baltimore35,183
  2. Rockville14,353
  3. Bethesda7,245
  4. Columbia6,690
  5. Silver Spring6,531
  6. Frederick3,981
  7. Towson3,721
  8. Annapolis3,629

Source: CMS NPPES primary taxonomy and practice city, file of Aug 9, 2026.

What's distinctive here

The specialties Maryland has more, and fewer, of than the nation

Relative to its size, Maryland has about 6.5× the national share of home health aides and only 0.66× the share of mental health counselors. These gaps reflect how each state licenses and classifies professions, not how much care is available.

More common in Maryland

Less common in Maryland

Each multiple is Maryland's share of that specialty divided by its national share, among specialties with at least 3,000 providers in-state. Source: CMS NPPES, current release.

904 Maryland entries on the federal exclusion list

14.6 per 100,000 residents, against 25 for the 50 states and D.C. The most common reason in Maryland: conviction for a program-related crime. Excluded people and businesses cannot bill Medicare or Medicaid. How to check a provider →

  1. Conviction for a program-related crime297
  2. License revoked, suspended or surrendered279
  3. Conviction for patient abuse or neglect168
  4. Felony conviction for a controlled substance41
  5. Felony conviction for health care fraud37

Source: HHS-OIG List of Excluded Individuals/Entities (LEIE), file of Sep 10, 2026 (oig.hhs.gov), entries with a Maryland address, five most common authorities.

The 30 Maryland cities with the most records

  1. Baltimore35,183
  2. Rockville14,353
  3. Bethesda7,245
  4. Columbia6,690
  5. Silver Spring6,531
  6. Frederick3,981
  7. Towson3,721
  8. Annapolis3,629
  9. Gaithersburg2,580
  10. Lanham2,465
  11. Hagerstown2,414
  12. Pikesville2,412
  13. Laurel2,372
  14. Bowie2,351
  15. Salisbury2,292
  16. Hyattsville2,196
  17. Glen Burnie1,989
  18. Bel Air1,945
  19. Ellicott City1,648
  20. Upper Marlboro1,638
  21. Owings Mills1,586
  22. Greenbelt1,332
  23. Germantown1,327
  24. Westminster1,327
  25. Waldorf1,272
  26. Chevy Chase1,118
  27. Cumberland1,070
  28. Catonsville1,023
  29. Beltsville954
  30. Lutherville952

Common questions

How many healthcare providers are in Maryland?

159,954 individual NPPES records list a practice address in Maryland, under 591 provider taxonomy codes. A record is a registration, not a license: it includes clinicians, technicians and students in training.

What is the most common physician specialty in Maryland?

Internal Medicine, with 3,904 records, followed by family medicine (1,912). Across every provider type the largest group is Behavior Technician (25,139 records).

How do I find a doctor in Maryland?

Open a physician specialty above for its Maryland list and its cities, or search a name or NPI with the state set to MD. PlainDoctor does not filter by insurance or rate doctors; check the license on the state board before booking.

The largest states

  1. California974,315
  2. New York545,291
  3. Florida470,495
  4. Texas433,013
  5. Ohio327,042

All states →

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); 2023 Census population estimates. Records are self-reported registrations, not licenses; PlainDoctor does not rate or recommend providers; its rankings sort billing figures, not quality.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.