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 116 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. Han Cao, MSW, LICSWClinical Social Worker1063284313
  2. Huilin Cao, DDS, MSDentist1831864313
  3. Jinjin CaoDiagnostic Radiology Physician1891619367
  4. Longyue CaoPediatric Gastroenterology Physician1922502228
  5. Ly Cao, BSMental Health Counselor1306006200
  6. Na Cao, MDOrthopaedic Surgery Physician1316477391
  7. Yenong Cao, MDHematology & Oncology Physician1063972016
  8. Yilin Cao, MDRadiation Oncology Physician1679939722
  9. Susan Capanno, NPAdult Health Nurse Practitioner1356483820
  10. David Caparrelli, LICSWClinical Social Worker1255840146
  11. Virginia Capasso, NPNurse Practitioner1467529925
  12. Michael Capawana, PH.D.Psychologist1730460742
  13. Sandra CapecelatroClinical Social Worker1760883748
  14. Roberta Capelson, NPAdult Health Nurse Practitioner1285668582
  15. Elizabeth CapicottoPhysician Assistant1588599633
  16. Jamila Capitman, LMHCMental Health Counselor1336948801
  17. David Caplan, MD PHDNeurology Physician1780674945
  18. Jane Caplan, MDPsychiatry Physician1316921232
  19. Louis Caplan, MDNeurology Physician1306833561
  20. Nadia Caplan, MD MSCStudent in an Organized Health Care Education/Training Program1376957001
  21. Rachel Caplan, MDNeurology Physician1215458369
  22. Joshua Caplin, PAPhysician Assistant1497815245
  23. Nicholas Capobianco, D.D.S.Oral and Maxillofacial Surgery (Dentist)1124456090
  24. Paul Capobianco, D.O.Family Medicine Physician1578599528
  25. Miranda Capomaccio, CCC-SLPSpeech-Language Pathologist1518651918
  26. Alicia Capone, DPTPhysical Therapist1083247449
  27. Karyn Capotorto, LCSWClinical Social Worker1770314437
  28. Jennifer Capozzi, PHARM DPharmacist1629672514
  29. Nancy Capparelli, PTPhysical Therapist1851692685
  30. Mackenzie CappelleStudent in an Organized Health Care Education/Training Program1619817319
  31. Rachel Cappello, PAMedical Physician Assistant1386331064
  32. Kate Cappetta, DOEndocrinology, Diabetes & Metabolism Physician1154881613
  33. Eric Cappiello, M.D.Anesthesiology Physician1124092820
  34. Davide Cappon, PH.DClinical Neuropsychologist1912593708
  35. Mary Jo Cappuccilli, RNRegistered Nurse1669654059
  36. Andrew Capraro, MDPediatric Emergency Medicine (Pediatrics) Physician1881650463
  37. Karen Capraro, LICSWClinical Social Worker1831255785
  38. Laura Captari, PH.D.Psychologist1871227595
  39. Joseph Caputo, LCSWClinical Social Worker1336670942
  40. Lisa Capuzziello, PNPPediatric Nurse Practitioner1437587771
  41. Jean Carabuena, MDAnesthesiology Physician1194781088
  42. Annmarie Caracansi, M.D.Child & Adolescent Psychiatry Physician1053633511
  43. Olivia Caradonio, CPNP-PCPediatric Nurse Practitioner1679210918
  44. David Caradonna, M.D.Otolaryngology Physician1679512107
  45. Kristina Caradonna, DMDOrthodontics and Dentofacial Orthopedics Dentistry1306611959
  46. Timothy Caradonna, MD, PHDInternal Medicine Physician1275222309
  47. Seamus Caragher, MDStudent in an Organized Health Care Education/Training Program1710681390
  48. Jonathan Caranfa, MD, PHARMDStudent in an Organized Health Care Education/Training Program1508112517
  49. Paula Caras CarasStudent in an Organized Health Care Education/Training Program1013862341
  50. Allison Caravana-LillyClinical Social Worker1134614738

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.