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 58 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. Eloise Bartz, MSN PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1669250817
  2. James Bartz, MDInternal Medicine Physician1801917372
  3. Chris Barucci, PTPhysical Therapist1457330987
  4. Anne-Marie Barussaud, D.M.D.Dentist1508066291
  5. Noora Barzegar, RDN, LDNRegistered Dietitian1003617424
  6. Julie Barzilay, MDPediatrics Physician1184252793
  7. Heidi Bas, MDAnesthesiology Physician1801826722
  8. Krystyne Basa, M.D.Otolaryngology Physician1740711225
  9. Sarah BasahamAnesthesiology Physician1710430806
  10. David Basali, BDSDentist1487107751
  11. Shehzad Basaria, MDEndocrinology, Diabetes & Metabolism Physician1699730101
  12. Molly Basch, PHDClinical Psychologist1891429585
  13. Matthew BasciottaInternal Medicine Physician1225418049
  14. Basak Basdag, MDInternal Medicine Physician1376883553
  15. Clara Baselga-GarrigaStudent in an Organized Health Care Education/Training Program1457152696
  16. Nesli Basgoz, MDInfectious Disease Physician1841265238
  17. Jennifer Bash, CNPOccupational Health Nurse Practitioner1801354717
  18. Patricia Basha, LICSWClinical Social Worker1396896593
  19. Vincent BashaProsthodontics1710472980
  20. Sana Basheer, MDSurgery Physician1912834284
  21. Elizabeth Bashoff, MDEndocrinology, Diabetes & Metabolism Physician1851441612
  22. Ryan BashourPhysician Assistant1447931209
  23. Georges Basile, M.D.Orthopaedic Surgery Physician1366978108
  24. Nora Basile, AGPCNP-BC, WHNP-BCAdult Health Nurse Practitioner1154788123
  25. Bridget Basile IbrahimFamily Nurse Practitioner1437587219
  26. Carlo Basilio, MDHospitalist Physician1023578630
  27. Anthony BasiloneBehavior Technician1063178390
  28. Marcus Basiri, MD, PHDStudent in an Organized Health Care Education/Training Program1104520873
  29. Charumathi Baskaran, MDPediatric Endocrinology Physician1174777395
  30. Debra Baskerville, N/AStudent in an Organized Health Care Education/Training Program1982450078
  31. Marc Baskin, MDPediatric Emergency Medicine (Pediatrics) Physician1598729451
  32. Debra Basler, NPNurse Practitioner1609083302
  33. Gaston Baslet, M.D.Psychiatry Physician1336196575
  34. Gianni Basoa, LMHCMental Health Counselor1396408217
  35. Lara Basovic, MDEpilepsy Physician1003340159
  36. James Bass, MDVascular & Interventional Radiology Physician1780673616
  37. Victoria Bass, M.D.Anesthesiology Physician1902210743
  38. Yasmine Basseghi, DMDDentist1164651527
  39. Ingrid Bassett, MDInternal Medicine Physician1396735676
  40. Louise Bassett, NPPediatric Nurse Practitioner1013013036
  41. Shayna Bassett, PH.D.Clinical Psychologist1316231913
  42. William Bassett, M.D.Urology Physician1265572572
  43. Katherine BassinCase Manager/Care Coordinator1275215428
  44. Jane Bassman, PA-CPhysician Assistant1447200894
  45. Kelley Basso, CPNP-PCPediatric Nurse Practitioner1861149197
  46. Craig Basson, MDCardiovascular Disease Physician1780774968
  47. David Basta, MD, PHDAnatomic Pathology Physician1073199519
  48. Salvatore Basta, M.D.Anesthesiology Physician1376524397
  49. Heather Bastardi, NPNurse Practitioner1528026192
  50. Amy Bastawros, D.M.D.Dentist1851704555

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.