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 303 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. Karl HallStudent in an Organized Health Care Education/Training Program1922843077
  2. Kevin Hall, LICSWAddiction (Substance Use Disorder) Counselor1376874925
  3. Mark Hall, LICSWClinical Social Worker1659680106
  4. Mary-Frances Hall, MD, MPHStudent in an Organized Health Care Education/Training Program1568222032
  5. Matthew Hall, M.D.Emergency Medicine Physician1962764522
  6. Phoebe Hall, PH.D.Student in an Organized Health Care Education/Training Program1396336665
  7. Stefanie HallPediatric Nurse Practitioner1033209218
  8. Tanya Hall, MDAnesthesiology Physician1831802743
  9. Anna Hallbergson, MD, PHDPediatrics Physician1629236294
  10. Laura Haller, CRNPNurse Practitioner1801398821
  11. Megan HallettPediatric Nurse Practitioner1538030606
  12. Lauren Hallion, MAStudent in an Organized Health Care Education/Training Program1356787600
  13. Stephen HalliseyEmergency Medicine Physician1295120251
  14. Courtney Halloran, NPPediatric Nurse Practitioner1871040584
  15. Daniel Halloran, LCSWAddiction (Substance Use Disorder) Counselor1396129326
  16. Jenna Halloran, LICSWClinical Social Worker1285103051
  17. Megan HalloranObstetrics & Gynecology Physician1336934850
  18. Stephanie Halloran, DCOrthopedic Chiropractor1982179503
  19. Robert Hallowell, M.D.Pulmonary Disease Physician1699984070
  20. Alyssa HalperPediatric Endocrinology Physician1295092518
  21. Florencia Halperin, M.D.Endocrinology, Diabetes & Metabolism Physician1083804926
  22. Jose Halperin, MDHematology (Internal Medicine) Physician1467532853
  23. Michael Halperin, M.D., M.P.H.Emergency Medicine Physician1699119602
  24. Benjamin Halpern, M.D.Student in an Organized Health Care Education/Training Program1972747202
  25. Danielle Halpern, M.D.Pediatrics Physician1942688635
  26. Samantha Halpern, MD, MHSSurgery Physician1154071306
  27. Albena Halpert, M.D.Gastroenterology Physician1669438925
  28. Amy Halpin, PHDClinical Psychologist1811748221
  29. Kathryn HalpinFamily Nurse Practitioner1508743790
  30. Meredith Halpin, M.D.Hematology & Oncology Physician1871933341
  31. William Halpin, LICSWClinical Social Worker1588743884
  32. John Halporn, MDHospice and Palliative Medicine (Internal Medicine) Physician1427001197
  33. Elizabeth Halprin, M.D.Endocrinology, Diabetes & Metabolism Physician1275565798
  34. Amy Halter, MSWClinical Social Worker1114476793
  35. Helena HaltermanPsychiatric/Mental Health Nurse Practitioner1801473749
  36. Thomas Halton, DOCTOR OF SCIENCENutritionist1730361932
  37. Frank Haluska, M.D.Medical Oncology Physician1942302559
  38. Olha HalyabarPediatric Rheumatology Physician1881952547
  39. Ciara HamDoula1720825383
  40. Edward HamStudent in an Organized Health Care Education/Training Program1578267977
  41. Mahmoud Hamad, DMDDentist1720648454
  42. Noha Hamada, MDFamily Medicine Physician1982195749
  43. Ahmed Hamada-Ibrahim, D.M.DDentist1619225786
  44. Ryoko HamaguchiStudent in an Organized Health Care Education/Training Program1679150205
  45. Ruchi Hamal, MDHematology & Oncology Physician1447670823
  46. Nicolas HamberBehavior Technician1902511785
  47. Makenna HambleyRegistered Nurse1023969490
  48. Naomi Hamburg, M.D.Cardiovascular Disease Physician1164479622
  49. Allen Hamdan, M.D.Vascular Surgery Physician1164489217
  50. Omar HamdanStudent in an Organized Health Care Education/Training Program1891528261

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.