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 147 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. Danielle Cipres, M.D.Obstetrics & Gynecology Physician1750812681
  2. Smill CiprianCounselor1629839642
  3. Lauren Cipriani-Espineira, PAPhysician Assistant1922340702
  4. Ann Marie Ciraulo, RNRegistered Nurse1316956907
  5. Danielle Ciraulo, LMHCMental Health Counselor1437287000
  6. Sayre Ciriello, NPNurse Practitioner1497097521
  7. Allison Cirino, MS, CGCGenetic Counselor (M.S.)1104809094
  8. Diana Cirstea, M.D.Hematology & Oncology Physician1780013649
  9. Alexandra Cist, MDCritical Care Medicine (Internal Medicine) Physician1659344091
  10. Alexandra Cisto, DPTPhysical Therapist1659637031
  11. Michelle Ciszewski, MS, APRN-BC, ANPAdult Health Nurse Practitioner1093800583
  12. John Ciufo, RPHPharmacist1225350796
  13. Viesha Ciura, M.D.Neuroradiology Physician1043567878
  14. Lucia Ciurea, M.D.Psychiatry Physician1134319262
  15. Elizabeth Ciurylo, P.T.Physical Therapist1407135221
  16. Christine Civiletto, PHDCounseling Psychologist1740779495
  17. Amanda CivitaPhysical Therapy Assistant1962831081
  18. Sevdenur Cizginer Konuk, MD, MPHGeriatric Medicine (Internal Medicine) Physician1881906725
  19. Robyn Claar, PHDClinical Child & Adolescent Psychologist1992862569
  20. Rachael Claborn, LICSWClinical Social Worker1093063992
  21. Terri Clack, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1487169173
  22. Aliza ClaflinBehavior Technician1649965112
  23. Danielle Clair, PAPhysician Assistant1104306885
  24. Jennifer ClairClinical Nurse Specialist1306243555
  25. Katherine Clair-Hayes, LICSW, MSWClinical Social Worker1184754228
  26. Dinia ClairveauxBehavior Technician1891391660
  27. Maia Claman, FNP-BCFamily Nurse Practitioner1245106053
  28. Carol Clancy, RNC MSN ANPOccupational Health Nurse Practitioner1649477373
  29. Corinne Clancy, NPAcute Care Nurse Practitioner1124571310
  30. Elizabeth ClancyNurse Practitioner1104381045
  31. Mary Clancy, NPAdult Health Nurse Practitioner1891743746
  32. Meghan Clancy, OT, OTD, OTROccupational Therapist1083434302
  33. Sarah Clancy, MED, EDSStudent in an Organized Health Care Education/Training Program1952193948
  34. Taylor Clancy, NPFamily Nurse Practitioner1902611676
  35. Thomas Clancy, MDSurgery Physician1184681561
  36. David Clapham, M.D.Internal Medicine Physician1376501759
  37. Katharine Clapham, MDCardiovascular Disease Physician1346502770
  38. Rebecca Clapham, PA-CPhysician Assistant1457902124
  39. Mark Clapp, MDMaternal & Fetal Medicine Physician1407122930
  40. Emily ClapperSocial Worker1629807565
  41. Eleanor Clapprood, NPFamily Nurse Practitioner1528091717
  42. Herlinda ClaraBehavior Technician1275133761
  43. Peter Clardy, M.D.Critical Care Medicine (Internal Medicine) Physician1629000237
  44. Alexis ClareStudent in an Organized Health Care Education/Training Program1780532275
  45. Colby ClariziaPhysician Assistant1386234573
  46. A. Mira Clark, LCSWMental Health Counselor1982538948
  47. Abigail Clark, NPNurse Practitioner1104554096
  48. Alanna ClarkStudent in an Organized Health Care Education/Training Program1578486429
  49. Alicia Clark, MDInternal Medicine Physician1952578460
  50. Alison ClarkPhysician Assistant1952281495

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.