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 348 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. Ayaka Iwata, MDOtolaryngology Physician1194143677
  2. Afamdi Iwuchukwu, DMDGeneral Practice Dentistry1477304111
  3. Christiana Iyasere, MDInternal Medicine Physician1649253386
  4. Akinwale Iyeku, MB.CH.B., MRCP.Internal Medicine Physician1215624762
  5. Anjali Iyengar, M.DNeonatal-Perinatal Medicine Physician1558527820
  6. Varun IyengarStudent in an Organized Health Care Education/Training Program1225651243
  7. Nimita Iyer, LCSWClinical Social Worker1427853258
  8. Urvya Iyer, MD, MPHInternal Medicine Physician1043940554
  9. Hope IyiewuareOtolaryngology Physician1902460314
  10. Azade Izadi, M.D.Hospitalist Physician1801051321
  11. Aaron Izenberg, MDNeurology Physician1831448083
  12. Mitchell Izower, BS, MDHospitalist Physician1396164570
  13. Michael Izzo, LCSWClinical Social Worker1174244222
  14. Nicole Izzo, PASurgical Physician Assistant1427458348
  15. Victoria Izzo, LMHCMental Health Counselor1760229322
  16. Saef Izzy, M.D.Neurology Physician1376863266
  17. Eman JabartiDentist1427411016
  18. Nicolette Jabbour, MDOtolaryngology Physician1730838582
  19. Yara Jabbour, MDStudent in an Organized Health Care Education/Training Program1780566810
  20. Aala Jaberi, M.DNephrology Physician1134534969
  21. Janelle JablonskiPhysical Therapist1508274655
  22. Joe Jabre, M.D.Neurology Physician1437112067
  23. Jessica Jacavage, PT, MSPhysical Therapist1265550073
  24. Alyssa Jacavone, CNPNurse Practitioner1235886995
  25. Heather Jacene, M.D.Nuclear Medicine Physician1700922879
  26. Bozena Jachna, M.D.Anesthesiology Physician1134187768
  27. Brian Jack, M.D.Family Medicine Physician1053385120
  28. David Jackman, M.D.Medical Oncology Physician1386622413
  29. Stephanie Jackman, MDDiagnostic Radiology Physician1063548451
  30. Mary Jackmin, PA-CSurgical Physician Assistant1427225929
  31. Tourino JacksCounselor1356697478
  32. Angela Jackson, MDInternal Medicine Physician1154389310
  33. Ashley Jackson, MSWClinical Social Worker1649542911
  34. Caitlin Jackson, RNRegistered Nurse1245002823
  35. Colin JacksonObstetrics & Gynecology Physician1104243278
  36. Colleen Jackson, PHDClinical Neuropsychologist1952765661
  37. Corrin JacksonBehavior Technician1902602352
  38. Daniel Jackson, M.D.Child & Adolescent Psychiatry Physician1992874234
  39. Deidrya Jackson, MD MPHGlaucoma Specialist (Ophthalmology) Physician1649658931
  40. Devlin Jackson, PH.D.Clinical Psychologist1053072397
  41. Esther JacksonBehavior Technician1265189583
  42. Heather Jackson, PSY.D.Psychologist1134619331
  43. James Jackson, M.D.Family Medicine Physician1285016949
  44. Jeremy Jackson, M.D.Student in an Organized Health Care Education/Training Program1154620862
  45. Jeremy JacksonCertified Registered Nurse Anesthetist1912313461
  46. Jonathan Jackson, MDStudent in an Organized Health Care Education/Training Program1033772603
  47. Julian JacksonStudent in an Organized Health Care Education/Training Program1932809290
  48. Karmen JacksonCounselor1073144085
  49. Kathleen JacksonNurse Practitioner1356893689
  50. Katrina Jackson, PA-CPhysician Assistant1467263400

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.