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 292 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. Cassidy GriecoPhysician Assistant1306428941
  2. Julie Grieco, PSYDPsychologist1639510472
  3. Peter Grieco, D.D.S.Dentist1790064244
  4. Melissa Grieco-Waters, MSWSocial Worker1346495470
  5. Holcombe Grier, MDPediatric Hematology & Oncology Physician1295702793
  6. Dustin Griesemer, MD, PHDAnesthesiology Physician1740741180
  7. Susan Griever, NPAdult Health Nurse Practitioner1225375314
  8. Alfred Griffin, D.M.D., PH.D.Dentist1467851188
  9. Brigid Griffin, NP, FNP-BCFamily Nurse Practitioner1902792112
  10. Catherine GriffinFamily Nurse Practitioner1902648330
  11. Catherine Griffin, RNRegistered Nurse1245074244
  12. Erin Griffin, CCC-SLPSpeech-Language Pathologist1891202594
  13. Gabriel Griffin, M.D.Anatomic Pathology Physician1639508484
  14. Harry Griffin, MDNeuroradiology Physician1306343157
  15. Jakara GriffinStudent in an Organized Health Care Education/Training Program1699436816
  16. James Griffin, MDMedical Oncology Physician1033175112
  17. Jan Griffin, MDAdvanced Heart Failure and Transplant Cardiology Physician1659632701
  18. John GriffinClinical Social Worker1972853901
  19. Lauren Griffin, PHDPsychologist1477346518
  20. Leslie Griffin, ACNP,ANPAcute Care Nurse Practitioner1336247402
  21. Molly Griffin, MDInternal Medicine Physician1659949154
  22. Olivia Griffin, LCSWClinical Social Worker1750953154
  23. Sydney Griffin, LCSWClinical Social Worker1093468258
  24. Alexis Griffin Bonhomme, MDObstetrics & Gynecology Physician1871054437
  25. Alexandra Griffith, PA-CPhysician Assistant1336797240
  26. Donna Griffith, MDAnesthesiology Physician1104863315
  27. Jason Griffith, M.D.Pulmonary Disease Physician1760646780
  28. Joseph Griffith, MDOphthalmology Physician1376807305
  29. Julie Griffith, N.P.Pediatric Nurse Practitioner1194031708
  30. Kendall Griffith, M.D.Obstetrics & Gynecology Physician1952728149
  31. Robert GriffithStudent in an Organized Health Care Education/Training Program1548115595
  32. Jeffrey Griffiths, MD MPH&TMPediatrics Physician1467541342
  33. Meredith Griffiths, LMHC, ATRMental Health Counselor1245810167
  34. Victor Griffiths, LMFTMarriage & Family Therapist1851519631
  35. Cornelia Griggs, M.D.Student in an Organized Health Care Education/Training Program1629360680
  36. Diana GriggsSocial Worker1386513620
  37. Donovan GriggsStudent in an Organized Health Care Education/Training Program1750967717
  38. Suzanne Griggs, M.S., R.D.Registered Dietitian1144505587
  39. Audrie Grigun, CNPPediatric Nurse Practitioner1245772235
  40. Dasjia Griham-HaneyBehavior Technician1902724016
  41. Luke GrilloStudent in an Organized Health Care Education/Training Program1700635562
  42. Gregory Grillone, M.D.Otolaryngology Physician1679535892
  43. John Grimaldi, M.D.Psychiatry Physician1720027832
  44. Anna Beatrice Grimaldo, MD, MSStudent in an Organized Health Care Education/Training Program1235985789
  45. Mary Grimanis, NPNurse Practitioner1497868038
  46. Alicia Grimes, F.N.P.Family Nurse Practitioner1629341516
  47. Daniel Grimes, M.D.Psychiatry Physician1043267420
  48. Karen Grimes, LMHCMental Health Counselor1245612407
  49. Kevin Grimes, PH.D.Clinical Psychologist1033153648
  50. Meghan Grimes, MDObstetrics & Gynecology Physician1790165694

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.