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 289 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. Madeleine Graziano, PA-CPhysician Assistant1649166588
  2. Nicholas GrazianoStudent in an Organized Health Care Education/Training Program1568321859
  3. Dusanka Grbic, M.D.Hepatology Physician1306264775
  4. Nicole Grbic, MDDermatology Physician1386388957
  5. Kelley Grealish, N.P.Adult Health Nurse Practitioner1407150451
  6. Judith Greathead, NURSE PRACTITIONERAdult Health Nurse Practitioner1508056094
  7. Jillian Greaves, MS, RD, LDNRegistered Dietitian1811401722
  8. Tamara Greaves, M.B.B.SCritical Care Medicine (Anesthesiology) Physician1922433911
  9. Benjamin GrebberPediatrics Physician1003494246
  10. Ashley Grebe, PT, DPTPhysical Therapist1487013702
  11. Christine Greco, MDAnesthesiology Physician1083682066
  12. Katherine GrecoAnesthesiology Physician1316479272
  13. Alexander Green, MD MPHInternal Medicine Physician1548251853
  14. Aliza GreenStudent in an Organized Health Care Education/Training Program1558947044
  15. Allen GreenStudent in an Organized Health Care Education/Training Program1336088830
  16. Amanda Green, M.D.Psychiatry Physician1922235753
  17. Aviva GreenStudent in an Organized Health Care Education/Training Program1659227858
  18. Benjamin Green, MDStudent in an Organized Health Care Education/Training Program1942905807
  19. Brian Green, M.D.Internal Medicine Physician1447206636
  20. Caroline GreenMental Health Counselor1912591017
  21. Daniel Green, D.D.S.Dentist1982875274
  22. Danielle Green, CNPNurse Practitioner1306597679
  23. Deborah Green, PH.D.Clinical Neuropsychologist1952852154
  24. Eric Green, MDStudent in an Organized Health Care Education/Training Program1083842298
  25. Errol Green, MDEmergency Medicine Physician1750480141
  26. Estelle Green, MDStudent in an Organized Health Care Education/Training Program1952160483
  27. Fiona GreenStudent in an Organized Health Care Education/Training Program1679405658
  28. Hannah GreenPediatric Pharmacist1710856208
  29. Harriette GreenFamily Nurse Practitioner1104500016
  30. Jack Green, LICSWClinical Social Worker1700326907
  31. James Green, B.A. PSYCHOLOGYCounselor1861014409
  32. Jennifer GreenClinical Psychologist1306335039
  33. Jonathan Green, PH.D.Clinical Psychologist1437568144
  34. Kaye-Alese Green, MDStudent in an Organized Health Care Education/Training Program1639972912
  35. Kayla GreenStudent in an Organized Health Care Education/Training Program1952157067
  36. Kristina Green, A.T.CAthletic Trainer1841670452
  37. Leslie Green, LICSWClinical Social Worker1598918427
  38. Mark Green, DDS, MDOral and Maxillofacial Surgery (Dentist)1821352394
  39. Maxwell GreenStudent in an Organized Health Care Education/Training Program1679332183
  40. Michael Green, MDOphthalmology Physician1023645983
  41. Nicole Green, PA-CPhysician Assistant1346297256
  42. Paige Green, RD, LDN, CNSCRegistered Dietitian1659120301
  43. Rebecca Green, M.D.Pediatrics Physician1215317243
  44. Renee Green, PHDPsychologist1124367867
  45. Richard Green, D.C.Chiropractor1134219041
  46. Robert Green, M.D.Neurology Physician1134182769
  47. Vindel GreenBehavior Technician1538795265
  48. Warren Green, D.M.D.General Practice Dentistry1851331953
  49. Donna Green-FordRegistered Nurse1942654454
  50. Israel Green-Hopkins, MDPediatrics Physician1912167883

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.