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 300 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. Brianne Hackman, M.D.Internal Medicine Physician1336469949
  2. Helen Holly Hackman, M.D.Public Health & General Preventive Medicine Physician1871692624
  3. Amy Hackmann, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1700987211
  4. David Hackney, MDDiagnostic Radiology Physician1942392022
  5. Peter Hadar, MD, MSEpilepsy Physician1922597012
  6. Cyrus Hadavi, MDStudent in an Organized Health Care Education/Training Program1154124600
  7. Anthony Haddad, MDSurgery Physician1891174702
  8. Chia Haddad, MDOtolaryngology Physician1366508202
  9. Elissa HaddadStudent in an Organized Health Care Education/Training Program1568213015
  10. Lisa Haddad, M.D.Obstetrics Physician1285789545
  11. Matthew Haddad, D.M.D.Dentist1609022607
  12. Mia Haddad, ACCNS-AGAcute Care Clinical Nurse Specialist1790393502
  13. Nichola Haddad, MDPsychiatry Physician1841828589
  14. Patricia Haddad, MDAnesthesiology Physician1023577103
  15. Robert Haddad, MDMedical Oncology Physician1942259098
  16. Waed HaddadStudent in an Organized Health Care Education/Training Program1235061474
  17. Rania Haddadin, M.D.Pediatric Cardiology Physician1710216296
  18. Zena HaddadinStudent in an Organized Health Care Education/Training Program1659218899
  19. Shirin Haddady, M.D.Endocrinology, Diabetes & Metabolism Physician1891777363
  20. Paulette Haddi, RNAddiction (Substance Use Disorder) Counselor1780381152
  21. Elizabeth Haddock, LICSWClinical Social Worker1609536606
  22. Candace Haddox, M.D.Medical Oncology Physician1508246018
  23. Neil HadfieldEmergency Medicine Physician1679897318
  24. Sarah Hadge, LCSWClinical Social Worker1073978532
  25. Ali Hadian AmreiPeriodontics1821977604
  26. Stavros Hadjiloizou, MDNeurology with Special Qualifications in Child Neurology Physician1992722763
  27. Aristides Hadjinicolaou, MDNeurology with Special Qualifications in Child Neurology Physician1164198198
  28. Scott Hadland, MD, MPH, MSPediatrics Physician1457586893
  29. Scott Hadley, MDStudent in an Organized Health Care Education/Training Program1326244930
  30. Stephanie Hadley, MDPediatrics Physician1598392995
  31. Theresa Hadlock, M.D.Facial Plastic Surgery Physician1578554549
  32. Muhamed Hadzipasic, MD,PHDNeurological Surgery Physician1508386780
  33. Suzanne HaefnerBehavior Technician1922752054
  34. Susan Haesaert, ODOptometrist1992750111
  35. Jennifer Haferd, RNRegistered Nurse1689856742
  36. Lily HafezStudent in an Organized Health Care Education/Training Program1073458956
  37. Christopher Haff, MDInternal Medicine Physician1457292591
  38. Madeleine Haff, MDInternal Medicine Physician1326532078
  39. Charles Haffajee, MDClinical Cardiac Electrophysiology Physician1952397523
  40. Christopher Haffenreffer, PA-CPhysician Assistant1700484144
  41. Margaret Haffey, LCSWSocial Worker1982263745
  42. Emily Haffner, NP, FNP-BCFamily Nurse Practitioner1811674609
  43. Samar Hafida, MB, BCHEndocrinology, Diabetes & Metabolism Physician1952509192
  44. Sarah HaganClinical Social Worker1235770264
  45. Robert Hagberg, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1356333439
  46. Marcel Hage Chahine Assumpcao, MDStudent in an Organized Health Care Education/Training Program1023946944
  47. Ryan HagenMental Health Counselor1811257090
  48. Bridget Hager, LICSWClinical Social Worker1437719200
  49. Jamie HagertyStudent in an Organized Health Care Education/Training Program1215731005
  50. Erin Haggerty, M.D.Anesthesiology Physician1821476425

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.