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 109 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. Paul Butler, M.D.Neurology Physician1841545142
  2. Samantha Butler, PHDClinical Child & Adolescent Psychologist1083840946
  3. Schaillee Butler, PAPhysician Assistant1174875751
  4. Sharlay Butler, M.D.Obstetrics & Gynecology Physician1497142392
  5. Stephanie Butler, PAPhysician Assistant1730481615
  6. Stephanie Butler, CNPPsychiatric/Mental Health Nurse Practitioner1821466806
  7. William Butler, MDNeurological Surgery Physician1174558449
  8. William Butler, M.D.Psychiatry Physician1831724939
  9. Melanie ButmanBehavior Technician1114520343
  10. Sophia Butowicz, MSW, LCSWCounselor1003531112
  11. Danielle Butsch, PTPhysical Therapist1700855293
  12. Anjum Butte, MDCardiovascular Disease Physician1104807379
  13. John Butter, MDInternal Medicine Physician1629037064
  14. Joanne Butterfield, NPNurse Practitioner1194215749
  15. Joan Butterton, MDInfectious Disease Physician1043200157
  16. Maria Buttolph, MD PHDPsychiatry Physician1689659146
  17. Mahima Buttrick, PA-CPhysician Assistant1629167960
  18. Adam ButtsCritical Care Medicine Registered Nurse1457296576
  19. Corine Buurman, NPAdult Health Nurse Practitioner1962121996
  20. Alfred Buxton, MDClinical Cardiac Electrophysiology Physician1598786063
  21. Kristin Buxton, NPPediatric Nurse Practitioner1841409398
  22. Beth Buyea, PAPhysician Assistant1508908542
  23. Charles Buzanis, MDGastroenterology Physician1487764965
  24. Sophia BuzanisStudent in an Organized Health Care Education/Training Program1548108012
  25. Patricia Buzelli, AGNP-CNurse Practitioner1013415348
  26. Elizabeth Buzney, MDDermatology Physician1881720621
  27. Marco BuzzangaStudent in an Organized Health Care Education/Training Program1710868146
  28. Lydia BuzzardStudent in an Organized Health Care Education/Training Program1831958099
  29. Brittany Bychkovsky, MDInternal Medicine Physician1457510075
  30. Connor ByemanStudent in an Organized Health Care Education/Training Program1205695368
  31. Robyn Byer, MDPediatric Emergency Medicine (Pediatrics) Physician1902861511
  32. David Byers, MSW, LICSWClinical Social Worker1366595050
  33. Julie Byler, DOHospitalist Physician1346760691
  34. Melanie Byra, DOPediatrics Physician1033859327
  35. Tracey Byra, LPC LMHC CEAPMental Health Counselor1891957692
  36. Karen Byrd, NPGerontology Nurse Practitioner1578547980
  37. Deirdre ByrneSchool Psychologist1447652284
  38. Elizabeth ByrneStudent in an Organized Health Care Education/Training Program1609452499
  39. Emma ByrneStudent in an Organized Health Care Education/Training Program1568213569
  40. Erin Byrne, LICSWClinical Social Worker1578849584
  41. Jennifer Byrne, PNPPediatric Nurse Practitioner1831459262
  42. Suzanne ByrneDiagnostic Radiology Physician1093191801
  43. Thomas Byrne, MDNeurology Physician1346230075
  44. Cynthia Byrne GuerreroBehavior Analyst1053776518
  45. Lauren ByrnesPharmacist1548011471
  46. Miranda Byrnes, CNPNurse Practitioner1922706647
  47. Thomas Byrnes, DDS MSDPeriodontics1144245531
  48. Valerie Byrnes, M.D.Gastroenterology Physician1467410332
  49. Virginia Byrnes, M.D.Internal Medicine Physician1942316872
  50. Arva ByronMidwife1366257727

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.