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 128 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. Nicholas Chambers-Maher, RNRegistered Nurse1972810901
  2. Demetris ChamblissStudent in an Organized Health Care Education/Training Program1497647861
  3. Luciana ChamieStudent in an Organized Health Care Education/Training Program1134070535
  4. Madelyn ChamisPhysician Assistant1003500059
  5. Jaimie Champagne, LIC.AC., MAOMAcupuncturist1407998917
  6. Jovanica ChampagneCase Manager/Care Coordinator1346797834
  7. Craig Champion, D.O.Obstetrics & Gynecology Physician1629251749
  8. Samantha Champion, MDAnatomic Pathology & Clinical Pathology Physician1184144313
  9. Sarah Chamseddine, M.D.Pediatric Allergy/Immunology Physician1275197550
  10. Allen Chan, RN-BSNCommunity Health Registered Nurse1518751965
  11. Alyssa Chan, ODOptometrist1982337762
  12. Andrew Chan, M.D.Gastroenterology Physician1982600144
  13. Andy Chan, MDDiagnostic Radiology Physician1700210721
  14. Annie Chan, MDRadiation Oncology Physician1306874169
  15. Antonia Chan, MDStudent in an Organized Health Care Education/Training Program1508568858
  16. Belinda Chan, MDInternal Medicine Physician1134154917
  17. Brian Chan, M.D.Infectious Disease Physician1770541641
  18. Brian Chan, M.D.Student in an Organized Health Care Education/Training Program1194205237
  19. Carol Chan, RDRegistered Dietitian1649547407
  20. Ceida Chan, O.D.Optometrist1023028057
  21. Celina Chan, RD, LDNRegistered Dietitian1174003651
  22. Chi Yuen Chan, M.D.Student in an Organized Health Care Education/Training Program1003104373
  23. Chini Chan, LMHCMental Health Counselor1235334848
  24. David Chan, M.D., M.SC.Internal Medicine Physician1750433249
  25. David Chan, MSN, AGPCNP-BC, RNGerontology Nurse Practitioner1053023010
  26. Diane Chan, M.D., PH.D.Neurology Physician1063755981
  27. Ethan Chan, PHARMDPharmacist1679210694
  28. Eugene ChanInternal Medicine Physician1811181365
  29. Eugenia Chan, MDDevelopmental - Behavioral Pediatrics Physician1215997192
  30. Grace ChanPediatrics Physician1891953535
  31. Hoi ChanAnesthesiology Physician1295145837
  32. Iris Chan, MD PHDMedical Oncology Physician1396712105
  33. Isabelle Chan, PAStudent in an Organized Health Care Education/Training Program1740006147
  34. Jennifer Chan, MD, MPHEmergency Medicine Physician1750372785
  35. Jennifer Chan, M.D.Anatomic Pathology Physician1285615617
  36. Jennifer Chan, MDMedical Oncology Physician1871578823
  37. Joanne Chan, MDFamily Medicine Physician1700103421
  38. Joyce ChanPediatric Nurse Practitioner1447802061
  39. Jung Chan, O.D.Optometrist1497731152
  40. Justin Chan, MDOrthopaedic Surgery Physician1316576861
  41. Katherine Chan, MDAnesthesiology Physician1306424569
  42. Kevin Chan, MDPediatrics Physician1609981786
  43. Kevin Chan, M.D.Nephrology Physician1437330081
  44. Kimberley Chan, O.D.Pediatric Optometrist1104908458
  45. Kimberley Chan, DMDGeneral Practice Dentistry1891040663
  46. Kit Chan, MDFamily Medicine Physician1528116571
  47. Lan Chan, MDDiagnostic Radiology Physician1912353293
  48. Leana Chan, NPAdult Health Nurse Practitioner1538110143
  49. Livia ChanPhysician Assistant1295394112
  50. Mandy ChanStudent in an Organized Health Care Education/Training Program1447056809

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.