NPPES file of Aug 9, 2026

Doctors and health care providers in Boston, MA

41,865 individual NPPES records list a practice address in Boston, 1st of 406 Massachusetts cities. The largest group is students in training: 6,126, 15% of the city's records, against 5% across Massachusetts. Page 95 of 838.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Boston

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

Boston in Massachusetts

  • Rank in Massachusetts1st of 406 cities by records
  • Share of the state19.1% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.7% of all records
  • Students in training rank1st of the 10 Massachusetts cities with the most

Compared with Massachusetts as a whole, Boston has 2.9× the state's share of student in an organized health care education/training program records and 0.23× its share of mental health counselor records.

Providers in Boston, alphabetically

  1. Claudia BrennickAdult Health Nurse Practitioner1396940110
  2. Laura Brenninkmeyer, MSCounselor1225309818
  3. Benjamin Brent, M.D., M.S.Psychiatry Physician1336212281
  4. Barbara Breslau, EDDClinical Psychologist1699749275
  5. Karen Bresnahan, M.D.Developmental - Behavioral Pediatrics Physician1619935582
  6. Morgan Bresnick, M.D.Surgery Physician1346409398
  7. John BresnihanClinical Social Worker1639328719
  8. Danielle BressoudPhysical Therapist1407089246
  9. Jamie BrettMedical Oncology Physician1396371365
  10. Marisa Brett-Fleegler, MDPediatric Emergency Medicine (Pediatrics) Physician1588629299
  11. Joy Brettler, PA-CSurgical Physician Assistant1598861114
  12. Ari Brettman, M.D.Internal Medicine Physician1972762300
  13. Anthony Breu, M.D.Internal Medicine Physician1225205263
  14. Anna BrewerLactation Consultant (Registered Nurse)1861281958
  15. Edward Brewer, M.D.Diagnostic Radiology Physician1831422377
  16. Nathan Brewer, MSWClinical Social Worker1891067872
  17. Paul Brewer, LCSWClinical Social Worker1013269638
  18. Richard Brewer, D.M.DGeneral Practice Dentistry1831547678
  19. Thomas Brewer, PH.D.Psychologist1417575622
  20. Dorothy Brewin, CNMAdvanced Practice Midwife1053412841
  21. Anne Brewster, MDInternal Medicine Physician1356329353
  22. David Brewster, MDVascular Surgery Physician1114918034
  23. Stephanie Brewster, RDN, LDRegistered Dietitian1932615184
  24. Ty-Janee BrewsterBehavior Technician1427934546
  25. Mark Brezina, NPAcute Care Nurse Practitioner1639398175
  26. Martha Brezina, NPAdult Health Nurse Practitioner1629087432
  27. Mark Brezinski, M.D.Cardiovascular Disease Physician1013151422
  28. Talya Briana, CNPFamily Nurse Practitioner1053032888
  29. Mary BrianoAcupuncturist1164956660
  30. Charlotte Briar, BM. B.CH.Pediatrics Physician1649571597
  31. Christian Brice, CRNACertified Registered Nurse Anesthetist1184784738
  32. Gregory Brick, MBCHBOrthopaedic Surgery Physician1992882195
  33. Jessica Brick, MDPediatrics Physician1053687558
  34. Lindsey BrickCounselor1225919822
  35. Margaret Brickley, NPAcute Care Nurse Practitioner1578520631
  36. David Bricklin-SmallClinical Psychologist1184027401
  37. Karen Bride, MD/PHDPediatric Hematology & Oncology Physician1932426319
  38. Janet Brideau, NPNurse Practitioner1568527133
  39. Deborah Brief, PH.D.Clinical Psychologist1568575553
  40. Katharine Brieger, MDStudent in an Organized Health Care Education/Training Program1568104271
  41. Joshua BrienExercise & Sports Psychologist1891675112
  42. Edward Briercheck, M.D., PH.D.Internal Medicine Physician1801282306
  43. Catherine Briere, MS, RD, LDNRegistered Dietitian1619323631
  44. Julie Briere, NNPCritical Care Neonatal Nurse Practitioner1437626595
  45. Lauren Briere, MSGenetic Counselor (M.S.)1982995148
  46. Eileen Brigandi, LADC 1Addiction (Substance Use Disorder) Counselor1275753006
  47. Deborah Brigell, M.D.Endocrinology, Diabetes & Metabolism Physician1497813711
  48. Emily Briggs, OT, OTD, OTR/LMental Health Occupational Therapist1700704830
  49. Susan Briggs, MDVascular Surgery Physician1205802501
  50. Olivia Briggs-HaleBehavior Technician1235723198

The largest Massachusetts cities

  1. Worcester13,166
  2. Springfield8,553
  3. Cambridge5,145
  4. Brockton4,287
  5. Milford3,459

All of Massachusetts →

How to read this directory

Boston, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 41,865 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Boston - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Boston practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Boston is weighted toward Student in an Organized Health Care Education/Training Program (6,126 clinicians, followed by Internal Medicine Physician with 2,320 and Clinical Social Worker with 1,906). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Massachusetts's population, Boston reports roughly 598 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Massachusetts's most common specialties, Counselor is the most prominent one with no provider currently listing a Boston practice address, a coverage gap Boston patients typically fill by traveling to a larger nearby hub.

For Boston patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Boston, MA?

There are 41,865 registered healthcare providers in Boston, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Boston?

The most common specialties in Boston are Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Clinical Social Worker, Physician Assistant, Anesthesiology Physician. Student in an Organized Health Care Education/Training Program has the most providers with 6,126.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.