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 332 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. Amanda HooverMental Health Counselor1861965469
  2. Elizabeth Hoover, MS, CCC-SLP, BC-NCDSpeech-Language Pathologist1235361809
  3. Jack HooverStudent in an Organized Health Care Education/Training Program1891527768
  4. Melissa Hoover, PHARMDPharmacist1023156908
  5. Paul Hoover, M.D., PH.D.Internal Medicine Physician1487916060
  6. Karen Hopcia, NPClinical Nurse Specialist1073649828
  7. Ethan Hope, PTPhysical Therapist1952478091
  8. Allison Hopkins, RNNurse Practitioner1619775434
  9. Cyrus Hopkins, MDInfectious Disease Physician1770564676
  10. Mary Hopkins, M.D.Infectious Disease Physician1396060133
  11. Mary Ellen Hopkins, LICSWClinical Social Worker1447947015
  12. Naeema Hopkins-KotbStudent in an Organized Health Care Education/Training Program1902609688
  13. Jane Hopkins-Walsh, PNPPediatric Nurse Practitioner1679776496
  14. Aidan Hopper, PA-CPhysician Assistant1922649763
  15. Alison Hoppin, MDPediatric Gastroenterology Physician1124019195
  16. Elizabeth HorakPhysician Assistant1215782164
  17. John Horan, MD MPHPediatric Hematology & Oncology Physician1649224502
  18. Matthew Horan, DMDDentist1447411079
  19. Sofia Horan, CGCGenetic Counselor (M.S.)1558078816
  20. Katharine Horback, M.D.Anatomic Pathology & Clinical Pathology Physician1477960193
  21. Kevin Horbowicz, PHARMDPharmacist1366207953
  22. Kristan Horemiotis, OTOccupational Therapist1831394493
  23. Arielle Horenstein, PHDClinical Psychologist1659928240
  24. Edward Horgan, P.A.Surgical Physician Assistant1871792457
  25. Maryellen Horgan, P.A.Surgical Physician Assistant1083892566
  26. Anne HoriganCertified Registered Nurse Anesthetist1942874649
  27. Henry Horita, MDStudent in an Organized Health Care Education/Training Program1134970981
  28. Clare Horkan, M.D.Internal Medicine Physician1982842514
  29. Maximilian HorlbeckClinical Genetics (M.D.) Physician1134688450
  30. Amanda HornEmergency Medicine Physician1366946410
  31. Dwan Horn, RD, LDN, CNSCPediatric Nutrition Registered Dietitian1679874275
  32. Thomas Horn, MDDermatology Physician1275620320
  33. Leigh Horne-Mebel, LICSWClinical Social Worker1891810735
  34. Barbara Horner, MDPsychiatry Physician1861416299
  35. Steven Horng, M.D.Emergency Medicine Physician1821281437
  36. Jason Hornick, MD PHDAnatomic Pathology Physician1851341341
  37. Mark Hornstein, MDReproductive Endocrinology Physician1720038276
  38. Stefanie Horoho, RN, MSN, CPNPPediatric Nurse Practitioner1437593761
  39. Sherri Horonjeff, PAPhysician Assistant1669444394
  40. Brooke HorowitchStudent in an Organized Health Care Education/Training Program1710825310
  41. Deborah Horowitz, LICSWClinical Social Worker1326220476
  42. Gary Horowitz, M.D.Chemical Pathology Physician1558308213
  43. Jaime Horowitz, AUDAudiologist1710650718
  44. Neil Horowitz, MDObstetrics & Gynecology Physician1629050919
  45. Steven Horowitz, MDNeurology Physician1013999770
  46. Susan Horrigan, MAMental Health Counselor1215693320
  47. Charles Horsburgh, M.D.Infectious Disease Physician1497731210
  48. Kate Horsch, LICSWClinical Social Worker1316378854
  49. Douglas Horst, MDGastroenterology Physician1518957224
  50. Martin Joseph Hortaleza, MDAnesthesiology Physician1447287073

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.