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 358 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. Caitlin Johnson, NNP-BCNeonatal Nurse Practitioner1144574674
  2. Cameron Johnson, MDStudent in an Organized Health Care Education/Training Program1487356184
  3. Caroline Johnson, MDInternal Medicine Physician1588240568
  4. Casey Johnson, MDPediatric Gastroenterology Physician1154882694
  5. Cassandra Johnson, RDNRegistered Dietitian1508257965
  6. Catherine Johnson, PA-CPhysician Assistant1730623802
  7. Catherine Johnson, PA-CPhysician Assistant1699591958
  8. Cheralyn Johnson, FNP-BC, IAFamily Nurse Practitioner1568871549
  9. Colleen Johnson, MS, RD, LDNRegistered Dietitian1194376186
  10. Connor JohnsonStudent in an Organized Health Care Education/Training Program1093417461
  11. Daniel Johnson, PHDClinical Psychologist1871944355
  12. Darren Johnson, PA-CPhysician Assistant1134404262
  13. David Johnson, MDStudent in an Organized Health Care Education/Training Program1992409049
  14. Davine JohnsonBehavior Technician1821724642
  15. Delaney JohnsonStudent in an Organized Health Care Education/Training Program1487439014
  16. Eileen Johnson, MSW, LCSWCase Manager/Care Coordinator1912210071
  17. Eileen Johnson, MSWSocial Worker1760854764
  18. Elizabeth Johnson, PH.D.Clinical Psychologist1528332228
  19. Elnora Johnson, BSCase Manager/Care Coordinator1518608975
  20. Emalyn Johnson, APRNPediatric Nurse Practitioner1265997480
  21. Emily JohnsonBehavior Technician1003328683
  22. Emily JohnsonFamily Nurse Practitioner1003462334
  23. Emily Johnson, MSN, AGACNP-BC, CCRNNurse Practitioner1669136768
  24. Emily Johnson, LCSWClinical Social Worker1689476806
  25. Emily Johnson, PA-CPhysician Assistant1467386805
  26. Eric JohnsonStudent in an Organized Health Care Education/Training Program1467283317
  27. Erica JohnsonPhysician Assistant1215398607
  28. Ervin Johnson, PH.D.Student in an Organized Health Care Education/Training Program1649536814
  29. Grace Johnson, MDStudent in an Organized Health Care Education/Training Program1073363016
  30. Graham JohnsonClinical Psychologist1649908641
  31. Gwynneth Johnson, CNPFamily Nurse Practitioner1720527005
  32. Heather Johnson, PA-CPhysician Assistant1265705248
  33. Jackson Johnson, OTD, OTR/LOccupational Therapist1336833961
  34. Jacob Johnson, MDInfectious Disease Physician1922361609
  35. Jaylon JohnsonStudent in an Organized Health Care Education/Training Program1578319679
  36. Jennifer Johnson, M.D.Infectious Disease Physician1336285386
  37. Jessica Johnson, MDPediatric Sleep Medicine Physician1588306690
  38. John JohnsonStudent in an Organized Health Care Education/Training Program1588366652
  39. Julie Johnson, PHARMDPharmacist1720309388
  40. Kaitlyn JohnsonStudent in an Organized Health Care Education/Training Program1295595148
  41. Karen JohnsonCase Manager/Care Coordinator1508632290
  42. Kathryn Johnson, LICSWClinical Social Worker1811045339
  43. Kayla Johnson, MDStudent in an Organized Health Care Education/Training Program1538796198
  44. Keith Johnson, MDNeurology Physician1841263159
  45. Kirsten Johnson, ODOptometrist1841784394
  46. Kristine Johnson, M.D.Sports Medicine (Family Medicine) Physician1588497192
  47. Lisa JohnsonPediatric Nurse Practitioner1972330496
  48. Lise Johnson, MDPediatrics Physician1649220179
  49. Lonna JohnsonBehavior Technician1760276695
  50. Lydia Johnson, LICSWSocial Worker1447727276

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.