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 333 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. Hillary Horte, RN, NP-CFamily Nurse Practitioner1356853881
  2. Edward Horton, M.D.Endocrinology, Diabetes & Metabolism Physician1003971730
  3. Kimberlee Horton, PA-CPhysician Assistant1851512214
  4. Lola Horton, RD, LDNRegistered Dietitian1497598973
  5. Monique HortonAddiction (Substance Use Disorder) Counselor1104186295
  6. Bela Horvath, M.D., PH.D.Anatomic Pathology Physician1053687814
  7. Ryan Horvath, MD, PHDAnesthesiology Physician1740544402
  8. Bruce Horwitz, MD, PHDPediatric Emergency Medicine (Pediatrics) Physician1942268065
  9. Jillian HoseyClinical Social Worker1710879358
  10. Mackenzie Hosford, NPNurse Practitioner1265958573
  11. Klaudia HoshiBehavior Technician1528773504
  12. Michael Hosking, RNSchool Registered Nurse1184559320
  13. Patrice Hoskins, PA-CPhysician Assistant1982868816
  14. Tamaki Hosoda, MAStudent in an Organized Health Care Education/Training Program1801413372
  15. Maura Hossack, NPAcute Care Nurse Practitioner1407162142
  16. Azfar Hossain, MDStudent in an Organized Health Care Education/Training Program1043912702
  17. Mahdin Hossain, MSCStudent in an Organized Health Care Education/Training Program1811844178
  18. Sabera HossainStudent in an Organized Health Care Education/Training Program1659171213
  19. Shahrier HossainPharmacist1093356230
  20. Tanzeema Hossain, MB, CHBNeonatal-Perinatal Medicine Physician1922017284
  21. Motaharsadat Hosseini, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1518215128
  22. Sahar Hosseini, MDStudent in an Organized Health Care Education/Training Program1417759341
  23. Nasser HosseinzadehDentist1043047756
  24. Abigail Hosselbarth, PNPPediatric Nurse Practitioner1477049468
  25. Margaret Hostage, DDSOrthodontics and Dentofacial Orthopedics Dentistry1760850507
  26. Julia Hotaling, RDN, LDNRegistered Dietitian1346927662
  27. Arda Hotz, M.D.Pediatrics Physician1477896207
  28. Peter Hou, MDEmergency Medicine Physician1699727479
  29. Runhua Hou, MDEndocrinology, Diabetes & Metabolism Physician1811077654
  30. Tianzhichao Hou, M.D. PH.DStudent in an Organized Health Care Education/Training Program1447196670
  31. Constance Houck, MDAnesthesiology Physician1720056096
  32. Chelsea Hough, CRNACertified Registered Nurse Anesthetist1407206220
  33. Gregory HoughtonClinical Social Worker1558643031
  34. Lisa Hould, LICSWClinical Social Worker1023254349
  35. Kristin Houle, PTPhysical Therapist1821169988
  36. Kristin Houlihan, RNRegistered Nurse1174046866
  37. Mary Jane Houlihan, M.D.Surgery Physician1093755738
  38. Christina Houllahan, N.P.Adult Health Nurse Practitioner1275865586
  39. Aseel Mahmoud HoumsseBehavior Analyst1457049678
  40. Lindsay HoupRegistered Nurse1497599377
  41. Antoun Houranieh, RPH,M.S.,PHD.Pharmacist1366558595
  42. Emilie Hourigan, LCSWMental Health Counselor1861213431
  43. Shannon Hourigan, PH.D.Clinical Child & Adolescent Psychologist1073947214
  44. Sara Hourihan, DPTPhysical Therapist1598012734
  45. Thabet HousamiGeneral Practice Dentistry1508464603
  46. Laura House, PA-CPhysician Assistant1225418965
  47. Michael House, M.D.Maternal & Fetal Medicine Physician1851405740
  48. Stuart Houser, MDAnatomic Pathology Physician1487636080
  49. Elizabeth Housman, M.D.Internal Medicine Physician1033438346
  50. Sarah Housman, M.D.Internal Medicine Physician1457613234

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.