NPPES file of Aug 9, 2026

Doctors and health care providers in Massachusetts

220,139 individual NPPES records list a practice address in Massachusetts, 3,144 per 100,000 residents, above the 2,176 across the 50 states and D.C.; records with an MD or DO credential: 589 per 100,000, against 375 nationally. Licenses are checked on the Massachusetts Board of Registration in Medicine 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).
Massachusetts license search Massachusetts Board of Registration in Medicine: the official search for a license's status and public orders. How to verify a Massachusetts license

Internal Medicine is Massachusetts's largest physician specialty

40,144 records in Massachusetts list a physician taxonomy (allopathic or osteopathic, NUCC 207 and 208) as their primary type. The eight largest specialties, each linked to its Massachusetts list:

  1. Internal Medicine6,825
  2. Psychiatry2,736
  3. Pediatrics2,628
  4. Family Medicine2,265
  5. Anesthesiology2,089
  6. Emergency Medicine1,829
  7. Diagnostic Radiology1,658
  8. Obstetrics & Gynecology1,127

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

Across every provider type, Mental Health Counselor is the largest group

  1. Mental Health Counselor18,415
  2. Clinical Social Worker17,815
  3. Behavior Technician11,430
  4. Students in training11,235
  5. Counselor8,990
  6. Physical Therapist7,100
  7. Internal Medicine Physician6,825
  8. Pharmacist5,932

Boston has the most records

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Cambridge5,145
  5. Brockton4,287
  6. Milford3,459
  7. Marlborough3,071
  8. Framingham3,069

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

What's distinctive here

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

Relative to its size, Massachusetts has about 10.4× the national share of developmental therapists and only 0.66× the share of family nurse practitioners. These gaps reflect how each state licenses and classifies professions, not how much care is available.

More common in Massachusetts

Less common in Massachusetts

Each multiple is Massachusetts'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.

1,721 Massachusetts entries on the federal exclusion list

24.6 per 100,000 residents, against 25 for the 50 states and D.C. The most common reason in Massachusetts: license revoked, suspended or surrendered. Excluded people and businesses cannot bill Medicare or Medicaid. How to check a provider →

  1. License revoked, suspended or surrendered1,056
  2. Conviction for a program-related crime336
  3. Felony conviction for health care fraud112
  4. Conviction for patient abuse or neglect97
  5. Default on a health education loan49

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

The 30 Massachusetts cities with the most records

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Cambridge5,145
  5. Brockton4,287
  6. Milford3,459
  7. Marlborough3,071
  8. Framingham3,069
  9. Fall River3,032
  10. Lowell2,992
  11. Newton2,975
  12. Quincy2,716
  13. Burlington2,620
  14. Brookline2,357
  15. Lawrence2,264
  16. New Bedford2,230
  17. Pittsfield2,189
  18. Beverly2,169
  19. Waltham2,111
  20. Danvers2,058
  21. Lynn2,030
  22. Holyoke1,961
  23. Plymouth1,954
  24. Salem1,869
  25. Somerville1,860
  26. Northampton1,816
  27. Woburn1,795
  28. Dorchester1,663
  29. Jamaica Plain1,656
  30. Brighton1,638

Common questions

How many healthcare providers are in Massachusetts?

220,139 individual NPPES records list a practice address in Massachusetts, under 594 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 Massachusetts?

Internal Medicine, with 6,825 records, followed by psychiatry (2,736). Across every provider type the largest group is Mental Health Counselor (18,415 records).

How do I find a doctor in Massachusetts?

Open a physician specialty above for its Massachusetts list and its cities, or search a name or NPI with the state set to MA. 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.