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 237 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. Carlos Fernandez-Del-Castillo, MDSurgery Physician1225029788
  2. Santiago Fernandez-Maldonado, MEDICAL STUDENTStudent in an Organized Health Care Education/Training Program1316561731
  3. Rushika Fernandopulle, MDInternal Medicine Physician1437130473
  4. Jenny Fernsten, BCBABehavior Analyst1760218002
  5. Christiane Ferran, M.D.Nephrology Physician1508803297
  6. Andrew Ferrante, LMHCMental Health Counselor1548394935
  7. Cleopatra Ferrao, NPFamily Nurse Practitioner1710064795
  8. Lawrence Ferrara, D.C.Chiropractor1134291610
  9. Nicole Ferrara, LICSWClinical Social Worker1144703349
  10. Victoria Ferrara-LawlorPhysician Assistant1386488849
  11. Angela Ferrari, CNMAdvanced Practice Midwife1962479444
  12. Lynne Ferrari, MDAnesthesiology Physician1952360042
  13. Judith Ferraro, CRNPNurse Practitioner1215007356
  14. Nalton Ferraro, DMD, MDOral and Maxillofacial Surgery (Dentist)1760551600
  15. Taylor FerraroPhysician Assistant1922711712
  16. Michael Ferraton, MDSurgery Physician1902666142
  17. Vanessa FerreStudent in an Organized Health Care Education/Training Program1164364097
  18. Daniel Ferreira, DPTPhysical Therapist1821296336
  19. Mark Ferreira, M.D., PH.D.Internal Medicine Physician1518316603
  20. Sarah Ferreira, MDStudent in an Organized Health Care Education/Training Program1285336057
  21. Kayla Ferrell, AGNP-BCNurse Practitioner1053937227
  22. Elizabeth Ferrenz, M.D.Family Medicine Physician1770724296
  23. Rafaela Ferrer De Oliveira, DDS, MSCDentist1396626289
  24. Hannah Ferrera, MDHospitalist Physician1962982116
  25. Michael Ferrera, MDPulmonary Disease Physician1821476763
  26. Millie Ferres, M.D.Maternal & Fetal Medicine Physician1568789337
  27. Larissa Ferretti, FNPFamily Nurse Practitioner1063384436
  28. Michelle Ferretti, PTPhysical Therapist1346386505
  29. Nicole FerrettiCounselor1427407683
  30. Grace Ferri, MDInternal Medicine Physician1124765094
  31. Mark FerrieroGeneral Practice Dentistry1265931117
  32. Bryan Ferrigno, MDStudent in an Organized Health Care Education/Training Program1265056816
  33. Massimo Ferrigno, MDAnesthesiology Physician1053359794
  34. Erica Ferrini, M.S., R.D., L.D.N.Registered Dietitian1093913501
  35. Sabrina Ferris, LICSWClinical Social Worker1124069596
  36. Timothy Ferris, MDInternal Medicine Physician1447240189
  37. Gabriella Ferris-HamlettCognitive & Behavioral Psychologist1548027378
  38. Enrico Ferro, MDClinical Cardiac Electrophysiology Physician1942790308
  39. Eric Ferro, PHARMDPharmacist1992161459
  40. Marco Ferrone, M.D.Orthopaedic Surgery Physician1033372107
  41. Jeffrey FerrucciOptometrist1487143657
  42. Renan Ferrufino Rosales, MDAnesthesiology Physician1831776137
  43. Judith Ferry, MDAnatomic Pathology Physician1578553988
  44. Rebecca FerryPsychiatric/Mental Health Registered Nurse1457202418
  45. Madison Fertig, MAStudent in an Organized Health Care Education/Training Program1174467526
  46. Ashley Ferullo, M.D.Pediatrics Physician1982925137
  47. Barbara Ferullo, LMHCMental Health Counselor1700904109
  48. Steven Feske, MDNeurocritical Care Physician1720045123
  49. Lauren Fess, MSN, RN, CPNP-PCPediatric Nurse Practitioner1306667019
  50. Nathaniel Fessehaie, MDInternal Medicine Physician1114506888

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.