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 349 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. Kiley JacksonSocial Worker1669264610
  2. Ladonya Jackson, PHDStudent in an Organized Health Care Education/Training Program1194474049
  3. Laterra Jackson, DMDStudent in an Organized Health Care Education/Training Program1982450086
  4. Mary Lou Jackson, M.D.Ophthalmology Physician1649362245
  5. Matthew Jackson, DMDOral & Maxillofacial Surgery (D.M.D.)1588647911
  6. Mentie JacksonSocial Worker1124971213
  7. Nadine Jackson, MD, MPHHematology & Oncology Physician1285760934
  8. Reshauna Jackson, RNRegistered Nurse1023508546
  9. Richard Jackson, M.D.Endocrinology, Diabetes & Metabolism Physician1194873422
  10. Samuel JacksonPsychiatry Physician1255794160
  11. Shawn Jackson, MD, PHDPediatric Critical Care Medicine Physician1780078915
  12. Timothy Jackson, MD, MPHSurgery Physician1679704001
  13. Toni JacksonRegistered Nurse1831521988
  14. Vicki Jackson, MDHospice and Palliative Medicine (Internal Medicine) Physician1538159710
  15. William Jackson, M.D.Emergency Medicine Physician1316068497
  16. William Jackson, PSY.DHealth Psychologist1487933438
  17. Sarah Jackson Oconnor, MDPediatric Sports Medicine Physician1356603799
  18. Fayette Jackson-LongBehavior Technician1790418002
  19. Ann JacobPharmacist1699136614
  20. Benita JacobStudent in an Organized Health Care Education/Training Program1700621117
  21. Jessenia JacobBehavior Technician1396554168
  22. Joby JacobInternal Medicine Physician1073045456
  23. Selvin Jacob, MDPulmonary Disease Physician1073040333
  24. Moriah Jacobellis, CNPAcute Care Nurse Practitioner1134637507
  25. Sara JacobellisStudent in an Organized Health Care Education/Training Program1629870241
  26. Michelle Jacobo, PHDPsychologist1194798769
  27. Alexander Jacobs, MDStudent in an Organized Health Care Education/Training Program1912766684
  28. Alice Jacobs, M.D.Cardiovascular Disease Physician1689651416
  29. Ashlee JacobsDoula1225920192
  30. Claire Jacobs, MD, PHDEpilepsy Physician1689929333
  31. Edward Jacobs, M.D.Otolaryngology/Facial Plastic Surgery Physician1629268768
  32. Jacqueline Jacobs, MD, MPHDiagnostic Radiology Physician1316523954
  33. Jamie Jacobs, PHDClinical Psychologist1033539614
  34. Karen Jacobs, OTRSpecialist1528183985
  35. Lanise JacobsBehavior Technician1396470621
  36. Melissa Jacobs, NPGerontology Nurse Practitioner1720401631
  37. Sarah Jacobs, MDStudent in an Organized Health Care Education/Training Program1124829221
  38. Shakeila Jacobs, LCSWClinical Social Worker1386200947
  39. Sharon Jacobs, MDPsychiatry Physician1487615951
  40. Uma Jacobs, MDStudent in an Organized Health Care Education/Training Program1376481028
  41. Christina Jacobsen, MD, PHDPediatric Endocrinology Physician1639341936
  42. Eric Jacobsen, MDHematology & Oncology Physician1457321861
  43. Juliet Jacobsen, MD DPHIHospice and Palliative Medicine (Internal Medicine) Physician1245221480
  44. Lorraine Jacobsohn, RN-PCNSPsychiatric/Mental Health Clinical Nurse Specialist1659758712
  45. Alan Jacobson, M.D.Psychiatry Physician1396826608
  46. Alex Jacobson, MDVascular & Interventional Radiology Physician1730686999
  47. Benjamin Jacobson, MDStudent in an Organized Health Care Education/Training Program1184572380
  48. Brian Jacobson, MD, MPHGastroenterology Physician1255389821
  49. Carolyn Jacobson, RN, MSN, CPNPPediatric Registered Nurse1528310257
  50. Caron Jacobson, MDMedical Oncology Physician1336261379

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.