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 209 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. Rosemary Duda, MD MPHSurgical Oncology Physician1902904642
  2. Skyler Duda, D.D.S.Dentist1174313803
  3. Becky Duddy-Burke, LICSWClinical Social Worker1205869344
  4. Christopher Dudek, MDEmergency Medicine Physician1720407620
  5. Julia Dudek, DMDStudent in an Organized Health Care Education/Training Program1316896079
  6. Nilofar DudhaNeurology Physician1225382740
  7. Alexander Dudley, MB BCH BAOEpilepsy Physician1336090034
  8. Caitlin DudleyClinical Social Worker1902388978
  9. Elise DudleyMental Health Counselor1487587333
  10. Jessica Dudley, MDInternal Medicine Physician1417993437
  11. Katherine Dudley, M.D.Critical Care Medicine (Internal Medicine) Physician1245497619
  12. Yasenia DudleyBehavior Technician1093227779
  13. David Dudzinski, M.D.Cardiovascular Disease Physician1619004074
  14. Emily Duff, PHARMDCritical Care Pharmacist1831019744
  15. Meghan DuffanyWomen's Health Nurse Practitioner1679905921
  16. Jeremy Duffield, M.D. PH.D.Nephrology Physician1851463202
  17. Alisha Duffy, NPFamily Nurse Practitioner1366266249
  18. Cassandra Duffy, M.D. M.P.H.Maternal & Fetal Medicine Physician1770840274
  19. Colette Duffy, LCSWClinical Social Worker1447809553
  20. Frank Duffy, MDNeurology with Special Qualifications in Child Neurology Physician1437182508
  21. Gerald DuffyMedical Physician Assistant1861943367
  22. Jeanne Duffy, PHDSleep Specialist (PhD)1396048153
  23. Jillian Duffy, MDEmergency Medicine Physician1942705884
  24. Judith Duffy, APRN BCAdult Health Nurse Practitioner1033327838
  25. Julia DuffyObstetrics & Gynecology Physician1205650074
  26. Kaitlin Duffy, DPTPhysical Therapist1730657727
  27. Lisa DuffyPediatric Nurse Practitioner1316114176
  28. Malia Duffy, RNRegistered Nurse1437293420
  29. Martha Duffy, M.D.Family Medicine Physician1821417379
  30. Patrick Duffy, MB BCH BAODiagnostic Radiology Physician1376108563
  31. Rebecca Dufner, MD, MBADermatology Physician1386269124
  32. Harold Dufour, MED., LADC 1Addiction (Substance Use Disorder) Counselor1437515921
  33. Katelyn Dufour, ARNPPediatric Nurse Practitioner1346788973
  34. Rachael Dufresne, FNP-CFamily Nurse Practitioner1235803412
  35. Meghan DuganPhysician Assistant1609461946
  36. Elizabeth Dugan Moran, LICSWMental Health Counselor1033604400
  37. Caitlin Dugdale, M.D.Infectious Disease Physician1548553779
  38. Joshua Duger, PA-CPhysician Assistant1831510593
  39. Brooke Duggan, LICSWClinical Social Worker1568852556
  40. Christopher Duggan, MD, MPHPediatric Gastroenterology Physician1740293091
  41. Danielle Duggan, RD, LDNRegistered Dietitian1265611313
  42. Jessica DugganStudent in an Organized Health Care Education/Training Program1235998857
  43. Kaitlyn DugganBehavior Technician1174230775
  44. Margaret Duggan, MDSurgical Oncology Physician1578541959
  45. Mary Duggan, NURSE PRACTITIONERAdult Health Nurse Practitioner1487981528
  46. Nicole Duggan, MDEmergency Medicine Physician1366962540
  47. Larissa Dugre, P.A.Surgical Physician Assistant1467806844
  48. Karen Duguay, FNP-BCFamily Nurse Practitioner1114535267
  49. Ann-Christine Duhaime, M.D.Neurological Surgery Physician1083626907
  50. Ashley DuhamelMental Health Counselor1689364226

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.