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 172 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. Chelsey CuttingSocial Worker1013266915
  2. Claire Cutting, MDPulmonary Disease Physician1114424785
  3. Zachary Cutts, LICSWClinical Social Worker1407517980
  4. Molly Cuvellier, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1801609003
  5. Dana Cvrk, CNMAdvanced Practice Midwife1932176518
  6. Roberta Cxypoliski, R.N.Medical-Surgical Registered Nurse1568638039
  7. Sophie Cyker, LCSWSocial Worker1245988278
  8. Lindsey Cypen, MDObstetrics & Gynecology Physician1336678390
  9. Aaron Cypess, M.D., PH.D.Endocrinology, Diabetes & Metabolism Physician1598730749
  10. Elizabeth CyrCounselor1548602204
  11. John Cyr, P.A.-C.Physician Assistant1124339817
  12. Stephanie Cyr, NURSE PRACTIONERAdult Health Nurse Practitioner1114393600
  13. Valerie Cyr, CNPAcute Care Nurse Practitioner1538537717
  14. Thomas Czajkowski, M.D.Emergency Medicine Physician1710220595
  15. Lauren Czapla, NPWomen's Health Nurse Practitioner1972746345
  16. Peter Czarnecki, MDNephrology Physician1942426598
  17. Jennifer Czarniak, PAPhysician Assistant1528050259
  18. Mark Czeisler, MD, PHDStudent in an Organized Health Care Education/Training Program1154117513
  19. David D'Adamo, MDMedical Oncology Physician1295706224
  20. Joanna D'Afflitti, M.D.Internal Medicine Physician1245432434
  21. Desiree D'Agostino, D.C.Chiropractor1346232550
  22. Dana D'Alessandro, LICSW, MPHClinical Social Worker1497129910
  23. David D'Alessandro, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1922188580
  24. Jennifer D'Almeida, DPTPhysical Therapist1154673960
  25. Jennifer D'Alotto, M.ED, MSW, LICSWClinical Social Worker1730661760
  26. Caitlin D'Amario, NPWomen's Health Nurse Practitioner1790402634
  27. Robert D'Amato, M.D., PHDOphthalmology Physician1386628105
  28. Veronica D'Ambra, MDAnesthesiology Physician1316501679
  29. Louis D'Ambrosio, O.D.Optometrist1710908207
  30. Gianna D'Ambrozio, LMSWSocial Worker1831976042
  31. Elizabeth D'AmelioClinical Social Worker1619439486
  32. Aaron D'Amore, MDEmergency Medicine Physician1699477133
  33. Maureen D'Amour, CNPFamily Nurse Practitioner1588201305
  34. Eugene D'Angelo, PHDClinical Child & Adolescent Psychologist1467509539
  35. Haley D'AngeloStudent in an Organized Health Care Education/Training Program1003600396
  36. Loren D'Angelo, CPNPPediatric Nurse Practitioner1417103193
  37. Nicholas D'Apice, PHARMD, BCACPPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1760063788
  38. Catherine D'Arpino, LICSWClinical Social Worker1265677835
  39. Chelsea D'Ascanio, CRNACertified Registered Nurse Anesthetist1124597257
  40. Cynthia D'Auria, O.D.Optometrist1114981974
  41. Andreluiz D'Avila, MD PHDClinical Cardiac Electrophysiology Physician1881709111
  42. Lori D'Avolio, NPAcute Care Nurse Practitioner1972283133
  43. Nathan D'AvolioRegistered Nurse1578886560
  44. Helen D'Couto, MDInternal Medicine Physician1497275028
  45. Grace D'Egidio, DMDStudent in an Organized Health Care Education/Training Program1013846203
  46. John D'Elia, M.D.Endocrinology, Diabetes & Metabolism Physician1639278237
  47. Alissa D'Gama, MD PHDNeonatal-Perinatal Medicine Physician1790280204
  48. Jonathan D'GamaStudent in an Organized Health Care Education/Training Program1992441901
  49. Pierre D'Hemecourt, MDSports Medicine (Emergency Medicine) Physician1124054770
  50. Sean D'Onofrio, CNSPediatric Clinical Nurse Specialist1225785553

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.