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 313 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. Jacqueline Haskell, CNPAcute Care Nurse Practitioner1851940332
  2. Susan Haskell, LICSWMental Health Counselor1770649683
  3. Denise Haskins, MASTER DEGREEMental Health Counselor1760001499
  4. Stacey Hasler, DMDPediatric Dentistry1275145013
  5. Victoria Hasler, PH.D.Clinical Psychologist1184110652
  6. Lara Hasney, CNPFamily Nurse Practitioner1487372223
  7. Tuna Hasoglu, MDPsychiatry Physician1912499542
  8. Sydney HasomerisBehavior Technician1295247971
  9. Richard Haspel, M.D.Clinical Pathology/Laboratory Medicine Physician1396782918
  10. Gerald Hass, M.D.Pediatrics Physician1073600672
  11. Amir HassanPsychiatry Physician1740049014
  12. Areej Hassan, M.D.Pediatric Adolescent Medicine Physician1003924325
  13. Baqir Hassan, MDPsychiatry Physician1558987453
  14. Dua Hassan, MDPediatrics Physician1205326923
  15. Mohammed Hassan, PA-CPhysician Assistant1598489536
  16. Nisreen HassanGeneral Practice Dentistry1205224896
  17. Olajumoke Hassan, R.N.Registered Nurse1992054357
  18. Samer Hassan, MDStudent in an Organized Health Care Education/Training Program1487394292
  19. Sara HassanPediatric Dentistry1326782293
  20. Shahzad HassanInternal Medicine Physician1811396039
  21. Sheila Hassan, NPNurse Practitioner1174623722
  22. Syed Moin Hassan, M.D.Sleep Medicine (Internal Medicine) Physician1295186187
  23. Salima Hassanaly, MD, FRCSCOphthalmology Physician1609304229
  24. Kimya Hassani-Ardakani, M.D.Student in an Organized Health Care Education/Training Program1154019776
  25. Elmira HassanzadehDiagnostic Radiology Physician1154779809
  26. Tania Hassanzadeh, MDOtolaryngology Physician1114417714
  27. Loren Hasse, PT, DPT, ATCPhysical Medicine & Rehabilitation Physician1679118780
  28. Per-Olof Hasselgren, M.D.Surgery Physician1700833035
  29. Destiny HassellSocial Worker1811774375
  30. Robert Hasserjian, MDHematology (Pathology) Physician1285625574
  31. Michael Hassett, M.D., M.P.H.Medical Oncology Physician1699886358
  32. Carla Hasson, MDPsychiatry Physician1922622125
  33. Meredith Hasson, MS, CGCGenetic Counselor (M.S.)1528038304
  34. Jaclyn Hastings, M.D.Family Medicine Physician1821523994
  35. Jacqueline Hastings, RN,CNPFamily Nurse Practitioner1386014173
  36. Jessie Hastings, M.S.Genetic Counselor (M.S.)1518955442
  37. Hatice Hasturk, DDS, PH.D.Periodontics1518284686
  38. Aaron Hata, MD, PHDMedical Oncology Physician1518167758
  39. Susan Hata, MDInternal Medicine Physician1184771065
  40. Dana HatabMental Health Counselor1831078237
  41. Masumeh HatamiNeurology Physician1275981433
  42. Gianna HatchStudent in an Organized Health Care Education/Training Program1053993782
  43. Hayden Hatch, MD, PHDStudent in an Organized Health Care Education/Training Program1154180297
  44. Jenifer HatchFamily Nurse Practitioner1629776026
  45. Edward Hatchigian, MDInternal Medicine Physician1255430740
  46. David Hathaway, M.D.Psychiatry Physician1093127383
  47. Jennifer Hathaway, PT, DPTOrthopedic Physical Therapist1225425887
  48. Jimena Hathaway, MD, MPHStudent in an Organized Health Care Education/Training Program1053182691
  49. Nora Hathaway, N.P.Nurse Practitioner1861861916
  50. Emily Hatheway Marshall, MDAnatomic Pathology & Clinical Pathology Physician1467154526

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.