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 188 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. Anne Marie Dempsey, PA-CPhysician Assistant1326575887
  2. Jillian Dempsey, PHARMDPharmacotherapy Pharmacist1528449535
  3. Jillian Dempsey, CRNACertified Registered Nurse Anesthetist1083472021
  4. Katherine Dempsey, AGACNP-BCAcute Care Nurse Practitioner1881140242
  5. Michelle Dempsey, DMDDentist1154622710
  6. Philip DempseyStudent in an Organized Health Care Education/Training Program1821893272
  7. Falen DemsasStudent in an Organized Health Care Education/Training Program1790425445
  8. Veronica Demtchouk, M.D.Gynecology Physician1134548381
  9. Taylor DenbyBehavior Technician1922606318
  10. Bowei DengStudent in an Organized Health Care Education/Training Program1639811276
  11. Lixia DengHospitalist Physician1447888730
  12. Matthew Deng, DDSDentist1326894163
  13. Zi Jun Deng, MDStudent in an Organized Health Care Education/Training Program1982280657
  14. Sunny Dengle, MDCardiovascular Disease Physician1235873548
  15. Maria Denietolis, ODOptometrist1912358250
  16. Yanick DenisCase Manager/Care Coordinator1568240752
  17. Christine Denison, M.D.Diagnostic Radiology Physician1063408086
  18. Thomas Denize, MDAnatomic Pathology Physician1578203972
  19. Bradley Denker, MDNephrology Physician1669438727
  20. Claudia Denkinger, M.D.Infectious Disease Physician1275726010
  21. William Denman, MDAnesthesiology Physician1376533794
  22. Sydney DenmarkClinical Social Worker1285362160
  23. Lindsey DennSocial Worker1932924263
  24. Kevin Dennehy, MDCritical Care Medicine (Anesthesiology) Physician1386634012
  25. Kimberlee Dennery, LICSWClinical Social Worker1023165115
  26. Kristine Dennery, LICSWSocial Worker1063620466
  27. Matthew Denning, PT, DPT, CSCS, CPTPhysical Therapist1336802024
  28. John Denninger, MD, PHDPsychiatry Physician1871555888
  29. Evan DennisStudent in an Organized Health Care Education/Training Program1861318636
  30. Julia DennisDevelopmental Therapist1710626783
  31. Melinda Dennis, MS, RD, LDNRegistered Dietitian1508920034
  32. Michael Dennis, MDMedical Oncology Physician1629519855
  33. Richard Dennis, M.D.Surgery Physician1609839729
  34. Evida Dennis-Heyward, MD, PHDPediatric Gastroenterology Physician1144789140
  35. Roberta DennisonFamily Medicine Physician1104239318
  36. Nicole DennoStudent in an Organized Health Care Education/Training Program1184470270
  37. Annemarie Denny, MDPediatrics Physician1174176655
  38. David Denofrio, M.D.Advanced Heart Failure and Transplant Cardiology Physician1679679997
  39. Erica Dente, APRN,BCAdult Health Nurse Practitioner1285827659
  40. Michael DenteInternal Medicine Physician1548063456
  41. Jennifer Denton, MD, MPHPediatrics Physician1881787000
  42. Stefanie Denu, PSYDPsychologist1558932293
  43. Amy Denuzzio, LICSWClinical Social Worker1467800391
  44. Steven Denyer, MD, MSOrthopaedic Surgery Physician1588227862
  45. Rahul Deo, M.D.Cardiovascular Disease Physician1942316807
  46. Avnish DeobhaktaRetina Specialist (Ophthalmology) Physician1356518674
  47. Leticia Deoliveira, LMHCMental Health Counselor1356962906
  48. Michelle Deonarine, CPNPPediatric Nurse Practitioner1629549977
  49. Ankita Anita Deosthali, MDPediatrics Physician1386131399
  50. Nicole Depace, NPGerontology Nurse Practitioner1265749618

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.