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 48 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. Ahmed BaioumyGeneral Practice Dentistry1144920869
  2. Jakob BairMental Health Counselor1558259234
  3. Megan Bair-Merritt, M.D.Pediatrics Physician1104868843
  4. Christopher Baird, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1417991993
  5. David BairdStudent in an Organized Health Care Education/Training Program1457152423
  6. Jennifer Baird, MSW, LICSWClinical Social Worker1588784987
  7. Katie Baird, MDInternal Medicine Physician1740719426
  8. Lissa Baird, MDNeurological Surgery Physician1508095019
  9. Trey BairdStudent in an Organized Health Care Education/Training Program1568264653
  10. Sigrid Bairdain, M.D. ,MPHSurgery Physician1942445895
  11. Tiffany Bairos, RDHDental Hygienist1992558654
  12. Jennifer Baiungo, PTNeurology Physical Therapist1831437276
  13. Tasha Baizerman, LICSWSchool Social Worker1972086163
  14. Akshar BajajProsthodontics1619866332
  15. Mira BajajPsychiatry Physician1740941970
  16. Pranav BajajStudent in an Organized Health Care Education/Training Program1700593134
  17. Rohan Bajaj, MDInternal Medicine Physician1770090318
  18. Ann BajartOphthalmology Physician1639150451
  19. Dusica Bajic, M.D., PH.D.Anesthesiology Physician1477740538
  20. Sibinka Bajic, M.D., PH.D.Anesthesiology Physician1437293735
  21. Amal Bajonaid, DDSStudent in an Organized Health Care Education/Training Program1881171429
  22. Lisa Bajpayee, MDPulmonary Disease Physician1851658801
  23. Ednan Bajwa, M.D.Pulmonary Disease Physician1962441956
  24. Harjinder Bajwa, M.D.Orthopaedic Surgery Physician1902932379
  25. Rachel Bak, CPNP-ACPediatric Nurse Practitioner1811605561
  26. Aaliyah Baker, DOULADoula1417813866
  27. Alaina Baker, PSYDClinical Child & Adolescent Psychologist1447971767
  28. Alexandra Baker, M.D.Pediatrics Physician1013334317
  29. Alexandria BakerStudent in an Organized Health Care Education/Training Program1598693467
  30. Amanda Baker, PH.D.Psychologist1104189729
  31. Annette Baker, NPNurse Practitioner1477501344
  32. Arianne Baker, MDPediatrics Physician1275983157
  33. Ashley Baker, NPPsychiatric/Mental Health Nurse Practitioner1417409194
  34. Catherine Baker, MDDermatology Physician1942836929
  35. Christina Baker, PHDPsychologist1366474736
  36. Corey Baker, M.D.Pediatric Gastroenterology Physician1588000301
  37. David Baker, D.D.S.Dentist1073868949
  38. Elisabeth Baker, NPNurse Practitioner1356676621
  39. Gabrielle Baker, MDAnatomic Pathology & Clinical Pathology Physician1932369444
  40. Grace Baker, LCSWClinical Social Worker1205514494
  41. Gregory BakerInternal Medicine Physician1255726667
  42. Haliegh BakerRegistered Nurse1790284891
  43. James Baker, MD MPHInternal Medicine Physician1821071606
  44. Jesse BakerInternal Medicine Physician1194383893
  45. Jiana Baker, MDStudent in an Organized Health Care Education/Training Program1700670627
  46. Jillian Baker, LICSWClinical Social Worker1801348123
  47. Joseph Baker, MD, MPHFamily Medicine Physician1144338138
  48. Justin Baker, MD, PHDPsychiatry Physician1437354040
  49. Katherine Baker, MDObstetrics & Gynecology Physician1205326865
  50. Keith Baker, MD PHDAnesthesiology Physician1962493510

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.