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 36 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. Amanda Ariola, PA-CPhysician Assistant1861279598
  2. Robert ArissStudent in an Organized Health Care Education/Training Program1528709581
  3. Aaron ArkinStudent in an Organized Health Care Education/Training Program1699574079
  4. Ronald Arky, MDEndocrinology, Diabetes & Metabolism Physician1063521334
  5. Alexa Arlos, NPWomen's Health Nurse Practitioner1851350482
  6. Krystle ArmandNurse Practitioner1396479531
  7. Ryan ArmijoStudent in an Organized Health Care Education/Training Program1164105789
  8. Julee Armitage, PACPhysician Assistant1588801708
  9. Zeina Armouche, DMDDentist1750530044
  10. Mark ArmourPeer Specialist1770463465
  11. Alexis ArmstrongBehavior Technician1538824867
  12. Callie Armstrong, LICSWClinical Social Worker1194034546
  13. Grayson Armstrong, M.D., M.P.H.Ophthalmology Physician1205213972
  14. Ian Armstrong, MDDiagnostic Radiology Physician1619556453
  15. James Armstrong, P.A.Medical Physician Assistant1568645182
  16. Katherine Armstrong, MDObstetrics & Gynecology Physician1104188853
  17. Scott Armstrong, MD, PHDPediatric Hematology & Oncology Physician1962462267
  18. Allison Armstrong-Javors, LMHCMental Health Counselor1306245949
  19. Amy Armstrong-Javors, MDNeurology Physician1225475478
  20. Omar Arnaout, M.D.Neurological Surgery Physician1528379641
  21. Kevin Arndt, MD, MSStudent in an Organized Health Care Education/Training Program1649764838
  22. Amy Arnett, CRNACertified Registered Nurse Anesthetist1780622977
  23. Anne Arnett, PHDClinical Child & Adolescent Psychologist1689060964
  24. Nathan ArnettStudent in an Organized Health Care Education/Training Program1629772405
  25. Alyssa Arnold, OTR/LLow Vision Occupational Therapist1619240207
  26. Daniel Arnold, M.D.Internal Medicine Physician1679764773
  27. Elaine Arnold, ANPAdult Health Nurse Practitioner1154535938
  28. Janis Arnold, LICSWClinical Social Worker1386691020
  29. Jeffrey Arnold, M.D.Clinical Pathology/Laboratory Medicine Physician1255611661
  30. Jennifer Arnold, M.D., MSCNeonatal-Perinatal Medicine Physician1871784900
  31. John Arnold, MDAnesthesiology Physician1306812417
  32. Lindsay Arnold, PHARM DPharmacotherapy Pharmacist1104046937
  33. Lucy Arnold, MDPediatric Cardiology Physician1689682379
  34. Summer Arnold-ScottBehavior Technician1538705397
  35. Jason Arnone, OTR/LOccupational Therapist1366688376
  36. Cherline ArnouxCase Manager/Care Coordinator1316483787
  37. Love ArobiekeStudent in an Organized Health Care Education/Training Program1982451597
  38. Vanita Aroda, MDEndocrinology, Diabetes & Metabolism Physician1588748883
  39. Julian Aroesty, M.D.Cardiovascular Disease Physician1699707117
  40. Ani AroianRegistered Dietitian1619771136
  41. Alice AronClinical Social Worker1891632881
  42. Lauren Aron, MACase Manager/Care Coordinator1982800181
  43. Donavon Khosrow AroniOrofacial Pain Dentistry1295150571
  44. Michael Aronoff, MDInternal Medicine Physician1508857012
  45. Joseph Aronovitz, M.D.Radiation Oncology Physician1316995418
  46. Benjamin Aronow, MDAnesthesiology Physician1104445790
  47. Terese Aronowitz, PHDCollege Health Registered Nurse1740474840
  48. Lori Aronson, MDPediatrics Physician1114918323
  49. Mark Aronson, M.D.Internal Medicine Physician1033157342
  50. Nicole Aronson, STUDENTStudent in an Organized Health Care Education/Training Program1023803111

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.