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 55 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. Michael Barnett, M.D.Internal Medicine Physician1154617876
  2. Samuel Barnett, MDStudent in an Organized Health Care Education/Training Program1053940999
  3. Sheri BarnettPediatric Nurse Practitioner1689819518
  4. Yvonne Barnett, MDPsychiatry Physician1871931873
  5. Brien Barnewolt, M.D.Emergency Medicine Physician1801980198
  6. Carol Barnewolt, M.D.Pediatric Radiology Physician1225161656
  7. Christi Barney, RN, MSN, CSPsychiatric/Mental Health Registered Nurse1497975171
  8. Elizabeth Barnhart, APRN BCFamily Nurse Practitioner1841406519
  9. Lilya BarnoussiAssistant Behavior Analyst1811757115
  10. Kevin Barnum, MD, PHDHematology & Oncology Physician1285124438
  11. Amy BaronOptometrist1740588862
  12. Charlene BaronRegistered Nurse1043569502
  13. Elisabeth Baron, M.D.Obstetrics & Gynecology Physician1790976819
  14. Jason Baron, M.D.Anatomic Pathology & Clinical Pathology Physician1346477890
  15. Miryan BaronMental Health Counselor1972878254
  16. Rebecca Baron, MDPulmonary Disease Physician1861458515
  17. Suzanne Baron, MD MSCInterventional Cardiology Physician1619003324
  18. Brad Baronas, PTPhysical Therapist1831415140
  19. Camilla Baronas, AU.D.Audiologist1922784651
  20. Maura BaronasNurse Practitioner1295569762
  21. Hope Barone, DODermatology Physician1245726991
  22. Lauren BaroneFamily Nurse Practitioner1326688052
  23. Lizanne Barone, PNP-BCPediatric Nurse Practitioner1205186392
  24. Lucianna Barone, PA-CPhysician Assistant1205507043
  25. Steven Baronian, NPAcute Care Nurse Practitioner1871735142
  26. Omar BaroomStudent in an Organized Health Care Education/Training Program1639764228
  27. Niravkumar Barot, MDEpilepsy Physician1154697589
  28. Dan Barouch, MD PHDInfectious Disease Physician1992786974
  29. Evelyne Baroud, M.DStudent in an Organized Health Care Education/Training Program1356974505
  30. Juliana BarounisGeneral Practice Dentistry1083469167
  31. Nubar BaroutjianStudent in an Organized Health Care Education/Training Program1548084155
  32. Farid Barquet Ramos, MS, MPH, CGCGenetic Counselor (M.S.)1265194856
  33. Destiny BarrBehavior Technician1457078339
  34. Samuel Barr, DMDGeneral Practice Dentistry1649284894
  35. Shannon BarrCertified Registered Nurse Anesthetist1871837096
  36. Diana Barragan Bradford, MDAnesthesiology Physician1417303322
  37. Susan Barratt, FNP-CFamily Nurse Practitioner1558086157
  38. Diana BarrazaStudent in an Organized Health Care Education/Training Program1437017613
  39. Emily BarreStudent in an Organized Health Care Education/Training Program1922949684
  40. Grazuela Barreau, RNRegistered Nurse1912588732
  41. Anna Barrell, MSN, NPRegistered Nurse1417793415
  42. Jason Barrera, MD, PHDInternal Medicine Physician1770879231
  43. Kayla BarreraPhysician Assistant1548692098
  44. Daniela Barrera Briones, DDSStudent in an Organized Health Care Education/Training Program1023719531
  45. Christian Barrera Casas, MDDiagnostic Radiology Physician1255969218
  46. Francisco Barrera Flores, MD, SMStudent in an Organized Health Care Education/Training Program1205521135
  47. Regina Barrera Flores, RDNRegistered Dietitian1245110774
  48. Alejandro Barrera Godinez, MDDermatology Physician1255023164
  49. Paola Alejandra Barrero Castillero, M.D., M.P.HNeonatal-Perinatal Medicine Physician1629417233
  50. Leslie Barresi, PA-CPhysician Assistant1841626256

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.