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 244 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. Candice Fleming, DMD, MSOrthodontics and Dentofacial Orthopedics Dentistry1679222780
  2. Colleen Fleming, NPFamily Nurse Practitioner1669106563
  3. Jeffrey Fleming, MDAnesthesiology Physician1831694058
  4. Joann Fleming, LMFTMarriage & Family Therapist1609991025
  5. Julia FlemingInternal Medicine Physician1609216191
  6. Kathrine FlemingNurse Practitioner1245840628
  7. Kristina Fleming, DPTSports Physical Therapist1356687677
  8. Mark Fleming, MDHematology (Pathology) Physician1235148404
  9. Sarah Fleming, LICSWClinical Social Worker1699007377
  10. Sarah Fleming, RNRegistered Nurse1649979592
  11. Lindsay Fleming-Papas, CRNACertified Registered Nurse Anesthetist1194478115
  12. Phoebe Flemming, R.D., L.D.N., C.L.C.Registered Dietitian1174835813
  13. Maya Fleseriu, MDStudent in an Organized Health Care Education/Training Program1801699657
  14. Elaine FletcherHospitalist Physician1881344323
  15. Hannah Fletcher, MS BCBABehavior Analyst1669982336
  16. Jonathan Fletcher, MDClinical Cytogenetics Physician1891713392
  17. Kalen FletcherSocial Worker1710478839
  18. Laura Fletcher, LICSWClinical Social Worker1619472347
  19. Polly Fletcher, OTRContractor1801008503
  20. Uniquew FletcherDoula1689502528
  21. Cassandra Fleurentin, FNP-BCFamily Nurse Practitioner1912534686
  22. Djemima Fleury, LICSWClinical Social Worker1831824267
  23. Jeff Flier, MDEndocrinology, Diabetes & Metabolism Physician1164468419
  24. Sarah Flier, M.D.Gastroenterology Physician1902939119
  25. Adrienne FlightClinical Social Worker1760646442
  26. Kristen Flight, M.D.Pediatric Anesthesiology Physician1497073837
  27. Brian Fligor, SC.D.Audiologist1295707925
  28. Scott Fligor, MDSurgery Physician1679097323
  29. Kristen Flint, MDEndocrinology, Diabetes & Metabolism Physician1972160570
  30. Teagan Flint, PAPhysician Assistant1467049296
  31. Kathleen Flinton, LICSWClinical Social Worker1720327604
  32. Jenna Flis, PT, DPTPhysical Therapist1043683428
  33. Naji Fliti, M.D.Student in an Organized Health Care Education/Training Program1962759456
  34. Mark Flomenbaum, M.D.Forensic Pathology Physician1447207774
  35. Blake Flood, MD, PHDStudent in an Organized Health Care Education/Training Program1679276455
  36. Thomas Flood, M.D., PH.D.Diagnostic Radiology Physician1093155541
  37. Rachel FlorenceRegistered Nurse1881458420
  38. Diana FlorencioStudent in an Organized Health Care Education/Training Program1871348979
  39. Wendolyn FlorentinoCounselor1124380290
  40. Alyssa Monica Flores, MDStudent in an Organized Health Care Education/Training Program1417534454
  41. Brianna FloresPhysician Assistant1699471359
  42. Cristina Flores, M.A.Counselor1093861460
  43. Efren Flores, MDDiagnostic Radiology Physician1982730628
  44. Micayla Flores, MDStudent in an Organized Health Care Education/Training Program1235980335
  45. Rene Flores Cardenas, MDStudent in an Organized Health Care Education/Training Program1295439115
  46. Adolfo Flores Fortty, M.D.Psychiatry Physician1821588195
  47. Jaime Flores Gouyonnet, MDStudent in an Organized Health Care Education/Training Program1386445393
  48. Esly Flores Mejia, NONEBehavior Technician1639841372
  49. Alejandro Flores Sandoval, MDPediatric Gastroenterology Physician1316950074
  50. Julio Flores ServinStudent in an Organized Health Care Education/Training Program1225839194

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.