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 335 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. Zoe Hristofilous, CNPNurse Practitioner1679948004
  2. Maya Hrkalovich, CPNPPediatric Nurse Practitioner1235951583
  3. Bridget Hron, MDPediatric Gastroenterology Physician1508026576
  4. Jonathan Hron, MDPediatrics Physician1447411301
  5. Tiffiny Hron, MDOtolaryngology Physician1588825541
  6. Ethan HryhorenkoStudent in an Organized Health Care Education/Training Program1154115418
  7. Anne Hseu, MDOtolaryngology Physician1477727683
  8. Tammy Hshieh, M.D.Internal Medicine Physician1477780443
  9. Belinda Hsi Dickie, M.D.Pediatric Surgery Physician1720270606
  10. Katie HsiaInternal Medicine Physician1629656145
  11. Maximilian Hsia-Kiung, M.D.Pain Medicine (Anesthesiology) Physician1548551229
  12. Li-Li Hsiao, MD PHDNephrology Physician1790741916
  13. Tiffany HsiaoDental Assistant1366287492
  14. Ying-Ying Hsiao, AUDAudiologist1497340145
  15. Adam Hsieh, MD, MSCAnesthesiology Physician1407665250
  16. Annie Hsieh, M.D. PH.D.Neurology Physician1225487036
  17. Grace Hsieh, M.D.Cardiovascular Disease Physician1639518376
  18. Jackie HsiehPediatrics Physician1609288547
  19. Paishiun Hsieh, MD/PHDStudent in an Organized Health Care Education/Training Program1861029555
  20. Yu-Lin Hsieh, MDInternal Medicine Physician1538795513
  21. Wilson Hsin, D.M.D.General Practice Dentistry1588718639
  22. Caroline Hsu, M.D.Nephrology Physician1972957207
  23. Carolyn HsuSpeech-Language Pathologist1679954218
  24. Catherine Hsu, R.D.Registered Dietitian1265643464
  25. Chi-Chen HsuProsthodontics1881843514
  26. Eugene HsuStudent in an Organized Health Care Education/Training Program1710737341
  27. Faith Hsu, NPNurse Practitioner1730333477
  28. Grace Hsu, DMDOral & Maxillofacial Surgery (D.M.D.)1689299927
  29. Heather Hsu, MD, MPHPediatrics Physician1124360870
  30. Joanne Hsu, MD, PHDInternal Medicine Physician1336726553
  31. Joey HsuStudent in an Organized Health Care Education/Training Program1629820154
  32. Jui HsuPhysical Therapist1366122673
  33. Julia Hsu, M.D.Internal Medicine Physician1114967254
  34. Justina Hsu, OTR/LNeurorehabilitation Occupational Therapist1043418262
  35. Kai-Yin HsuGerontology Nurse Practitioner1962632208
  36. Katherine Hsu, MD, MPHPediatric Infectious Diseases Physician1467443135
  37. Kelly HsuStudent in an Organized Health Care Education/Training Program1477491025
  38. Lee Hsu, MD, FRC PSYCHPsychiatry Physician1952417693
  39. Liangge Hsu, MDDiagnostic Radiology Physician1740265784
  40. Michael HsuStudent in an Organized Health Care Education/Training Program1821454489
  41. Peter Hsu, M.D.Pediatric Hematology & Oncology Physician1003173592
  42. Samuel Hsu, MDStudent in an Organized Health Care Education/Training Program1750085296
  43. Tiffany Hsu, M.D., PH.D.Rheumatology Physician1487180485
  44. Tom Hsu, MDOphthalmology Physician1285854729
  45. William Hsu, M.D.Endocrinology, Diabetes & Metabolism Physician1679687560
  46. Yin Hsu, DMD, MPHGeneral Practice Dentistry1083831812
  47. Lawrence Hsu Lin, MD, PHDAnatomic Pathology Physician1649831710
  48. Brian HsuehStudent in an Organized Health Care Education/Training Program1851972558
  49. Jennifer HsuehEmergency Medicine Physician1336622521
  50. Alvin Hu, MDInternal Medicine Physician1265060529

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.