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 213 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. William Dwyer, M.D.Neonatal-Perinatal Medicine Physician1336197847
  2. Mary Dy, ODOptometrist1336708734
  3. Marisela Dy-Hollins, M.D.Neurology with Special Qualifications in Child Neurology Physician1780814723
  4. George Dyer, MDOrthopaedic Hand Surgery Physician1154310381
  5. Kathryn Dyer, MDEmergency Medicine Physician1851363048
  6. Martha Dyer, M.D.Urology Physician1356376453
  7. Michael Dyer, M.D.Radiation Oncology Physician1851659130
  8. Samuel DyerClinical Social Worker1396509931
  9. Zachary Dyer, DNP, CRNACertified Registered Nurse Anesthetist1417640152
  10. Marianne Dyke, NPAdult Health Nurse Practitioner1922498658
  11. Ryanne DymekStudent in an Organized Health Care Education/Training Program1538862602
  12. Michelle Dyrholm, DOAnesthesiology Physician1689106700
  13. Greta Dyshniku, MSN, APRN, FNP-BCFamily Nurse Practitioner1326657594
  14. Naomi DysonSocial Worker1013526920
  15. Emina Dzafic, DOAnesthesiology Physician1518805001
  16. Indira DzanoSocial Worker1265363766
  17. Bonaventure Dzekem, MD, MACardiovascular Disease Physician1003551433
  18. Ali Dzhemiliev, MDStudent in an Organized Health Care Education/Training Program1639921935
  19. Alexandra Dziama, NPFamily Nurse Practitioner1588195986
  20. Laura Dziama, NPNurse Practitioner1225221377
  21. Rachel Dziedzic, RD, LDNRegistered Dietitian1659761542
  22. Alyssa DzikStudent in an Organized Health Care Education/Training Program1144089517
  23. Walter Dzik, MDHematology (Internal Medicine) Physician1295726495
  24. Maureen Dziura, MDPulmonary Disease Physician1174818363
  25. Judith Dzyak, RNRegistered Nurse1225170632
  26. Emily Eachus, MDStudent in an Organized Health Care Education/Training Program1336941749
  27. Micah Eades, M.D.Internal Medicine Physician1194144477
  28. Katelyn EagenPhysician Assistant1942133442
  29. Kelly Eagen, PA-CPhysician Assistant1659267003
  30. Barb Eager, MSWSocial Worker1497238521
  31. Angelique Ealy, MDStudent in an Organized Health Care Education/Training Program1184474140
  32. Pracha Eamranond, M.D.Internal Medicine Physician1073501656
  33. Brendan Eappen, MDStudent in an Organized Health Care Education/Training Program1144922782
  34. Sunil Eappen, MDAnesthesiology Physician1770564684
  35. Ellen Earle, MDStudent in an Organized Health Care Education/Training Program1457927931
  36. William Earle, MDHospitalist Physician1790308674
  37. Catherine Earley, NPNurse Practitioner1548239890
  38. Charles Earley, MDHospitalist Physician1376104059
  39. Ryan Earls, PHARMDPharmacist1568047900
  40. Lewis Earnest, M.D.Emergency Medicine Physician1730355785
  41. Brandon Earp, MDOrthopaedic Hand Surgery Physician1285690479
  42. Austin Eason, MDPsychiatry Physician1710828405
  43. Lucas Eastaugh, MDStudent in an Organized Health Care Education/Training Program1609154160
  44. Elizabeth Eastburn, D.O.Anesthesiology Physician1841466497
  45. Layla EastepSocial Worker1982199568
  46. Sarah Easter, M.D.Obstetrics & Gynecology Physician1134418064
  47. Arlan Eatman, LCSWClinical Social Worker1942731716
  48. Alexander Eaton, MDStudent in an Organized Health Care Education/Training Program1255033817
  49. Ashley Eaton, MDDiagnostic Radiology Physician1700899200
  50. Bree Eaton, M.D.Radiation Oncology Physician1861629107

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.