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 312 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. Kevan Hartshorn, M.D.Medical Oncology Physician1700862745
  2. Kathryn Hartshorne, CNMAdvanced Practice Midwife1407605785
  3. Emily Hartsough, MDStudent in an Organized Health Care Education/Training Program1316524986
  4. Nathan Hartvigsen, M.D.Psychiatry Physician1497811087
  5. Rebecca Hartwell, PA-CPhysician Assistant1104937473
  6. Megan HartyDevelopmental Therapist1063012243
  7. Megan HartyStudent in an Organized Health Care Education/Training Program1871395731
  8. Melissa Hartz, CNPFamily Nurse Practitioner1497217566
  9. Pamela Hartzband, MDEndocrinology, Diabetes & Metabolism Physician1043257512
  10. Allison HarveyDental Hygienist1700753209
  11. Anjuli Harvey, M.DIV., PH.D.Psychologist1609009901
  12. Daniel HarveyMental Health Counselor1710317920
  13. Margaret Harvey, PSY.D.Clinical Psychologist1144311077
  14. Megan Harvey, PA-CPhysician Assistant1134419989
  15. Nanette Harvey, M.D.Family Medicine Physician1235272626
  16. William Harvey, MDRheumatology Physician1437251352
  17. Jeanna Harvey BarnesDiagnostic Radiology Physician1083008999
  18. Karen Harvey-Wilkes, M.D.Neonatal-Perinatal Medicine Physician1306935507
  19. Laura Harward, LICSWSocial Worker1487039160
  20. Kerri Harwood, OTOccupational Therapist1093939605
  21. Robynlynn Harwood, PA-CPhysician Assistant1639693229
  22. Omair HasanStudent in an Organized Health Care Education/Training Program1215734744
  23. Sanah HasanStudent in an Organized Health Care Education/Training Program1316648983
  24. Syeda Hasan, MDHospitalist Physician1215592696
  25. Amelia Hasbun, LMFTMarriage & Family Therapist1396110409
  26. Matthew Hasday, DDSStudent in an Organized Health Care Education/Training Program1346702073
  27. Niklas HaseStudent in an Organized Health Care Education/Training Program1033911144
  28. Kohei Hasegawa, M.D.Emergency Medicine Physician1760654438
  29. Bryar HasenjaegerPrimary Care Nurse Practitioner1023628468
  30. Erik Hasenoehrl, MD/PHDStudent in an Organized Health Care Education/Training Program1003492034
  31. Gabrielle HaseotesClinical Social Worker1700364999
  32. Erin Haser, M.D.Otolaryngology Physician1396158507
  33. Andre Hashem, DMD CADSProsthodontics1487727301
  34. Carl Hashem, MDHospitalist Physician1477139558
  35. Hanan HashemPsychologist1053984377
  36. David Hashemi, MD, MBADermatology Physician1043772791
  37. Nikroo Hashemi, MD, MPHGastroenterology Physician1902012438
  38. Arsalan Hashemiaghdam, MDStudent in an Organized Health Care Education/Training Program1154947448
  39. Roxana Hashemian, DDSGeneral Practice Dentistry1992093058
  40. Nimo HashiClinical Social Worker1750762589
  41. Kimberlee Hashiba, MDDiagnostic Radiology Physician1932556008
  42. Dean Hashimoto, MDOccupational Medicine Physician1306837802
  43. Ahmar HashmiStudent in an Organized Health Care Education/Training Program1588042584
  44. Anisah Hashmi, MDStudent in an Organized Health Care Education/Training Program1821748302
  45. Ardeshir Hashmi, M.D.Geriatric Medicine (Internal Medicine) Physician1619143492
  46. Isra Hashmi, CNPFamily Nurse Practitioner1245709518
  47. Gali Hashmonay, M.D.Psychiatry Physician1164958815
  48. Delvina Hasimja Saraqini, M.DInternal Medicine Physician1871701094
  49. Christian HasiotisStudent in an Organized Health Care Education/Training Program1073353702
  50. George Hasiotis, MDInternal Medicine Physician1386631844

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.