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 197 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. Alper DincerNeurological Surgery Physician1184243537
  2. Ashley Dindial, P.T.Physical Therapist1477929768
  3. James Dineen, MDInternal Medicine Physician1821076654
  4. Laura DinersteinPsychiatry Physician1063519080
  5. Milton Dines, DDSPeriodontics1407991896
  6. Callie DingAnesthesiology Physician1659011773
  7. Jin Ding, DPTPhysical Therapist1891096145
  8. Julia Ding, MDGastroenterology Physician1669901757
  9. Xinge Ding, RD, LDNRegistered Dietitian1770114845
  10. Diana Dinh, MDVascular & Interventional Radiology Physician1184043648
  11. Thanh Dinh, DPMPodiatrist1972550440
  12. Chiara Dini, PEER SPECIALISTPeer Specialist1710789383
  13. Nicole Dinicola, PA-CPhysician Assistant1821363391
  14. Jessica Dinisco, R.N., PMHNP- BC,Psychiatric/Mental Health Nurse Practitioner1629408596
  15. Rachel Dinisman, PAPhysician Assistant1164931317
  16. Jessica Dinjian, OTR/LOccupational Therapist1225443260
  17. Richard Dinnocenzo, DMD MDOral and Maxillofacial Surgery (Dentist)1831109065
  18. Diane Dinobile, NPAdult Health Nurse Practitioner1811935745
  19. Danya Dinwoodey, M.D.Cardiovascular Disease Physician1699805127
  20. Michael DinyEndodontics1255077582
  21. Helena Diodati, OTR/LOccupational Therapist1306233010
  22. Audrey Dionne, M.D.Pediatric Cardiology Physician1811349673
  23. Brandon Dionne, PHARMDPharmacotherapy Pharmacist1528491099
  24. Kathleen Dionne, N.P.Family Nurse Practitioner1255700753
  25. Roger Dionne, PHARMDPharmacist1295855807
  26. Louis Paul Dionne-Berlinguette, DMD, MDOral & Maxillofacial Surgery (D.M.D.)1649152968
  27. Michelle Diop, MD, SCMHospice and Palliative Medicine (Internal Medicine) Physician1043770274
  28. Khady Diouf, M.D.Obstetrics & Gynecology Physician1538238639
  29. Suzanne Dipalma, NPFamily Nurse Practitioner1669692455
  30. Joseph Dipane, MDInternal Medicine Physician1326733809
  31. Stephanie Diperna, M.D.Diagnostic Radiology Physician1891914933
  32. Melissa Dipetrillo, M.D.Internal Medicine Physician1487619540
  33. Stefanie Dipietro, PHARMD, BCOPOncology Pharmacist1437812476
  34. Stephanie Dipietro, PAPhysician Assistant1417697533
  35. Theresa DipietroCounselor1083137509
  36. Melissa Dipiro, CNPPediatric Nurse Practitioner1306213772
  37. Pamela Dipiro, M.D.Diagnostic Radiology Physician1730179110
  38. James Dipoce, MDDiagnostic Radiology Physician1871570655
  39. Andrew DippreDiagnostic Radiology Physician1942943253
  40. Noor Dirini, MDAnesthesiology Physician1326845959
  41. Suad Diriye, LCSWClinical Social Worker1063201325
  42. Ann Dirr, NPNurse Practitioner1447266168
  43. Bonnie Dirr, MSN, APRN, BCAdult Health Nurse Practitioner1861681199
  44. McKenzie DirrStudent in an Organized Health Care Education/Training Program1972206613
  45. Donald Disalvo, MDDiagnostic Ultrasound Physician1881673754
  46. Cristina Dischino, CPHTPharmacy Technician1073635363
  47. Alexander Disciullo, MDInternal Medicine Physician1932725470
  48. Christopher DisciulloBehavior Technician1790571800
  49. Jessica Disilvestro, MDGynecologic Oncology Physician1942720024
  50. Heather Diskin, MDPediatrics Physician1477689214

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.