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 81 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. Ksenia Blinnikova, MDFamily Medicine Physician1740646181
  2. Cayley Bliss, M.A.Mental Health Counselor1043190895
  3. Charles Bliss, MDGastroenterology Physician1740266477
  4. Sarah Blitz, MDStudent in an Organized Health Care Education/Training Program1215796982
  5. Donald Bloch, MDRheumatology Physician1609857739
  6. Kurt Bloch, MDRheumatology Physician1326020652
  7. Randall Bloch, MDSurgery Physician1497329296
  8. Rina Bloch, M.D.Physical Medicine & Rehabilitation Physician1639252091
  9. Tamara Bloch, NPAdult Health Nurse Practitioner1437251907
  10. Jason Block, MDInternal Medicine Physician1801823620
  11. Sofia BlockMental Health Counselor1356262489
  12. Susan Block, MDPsychiatry Physician1083681563
  13. Elizabeth Blocker, WHNP-BC, RNWomen's Health Nurse Practitioner1003696550
  14. Meredith Blodget, PASurgical Physician Assistant1003905761
  15. Jasmine Blodgett, MS, ACSM CEPClinical Exercise Physiologist1477296333
  16. Korey BlodgettAthletic Trainer1720618556
  17. Ilya Blokhin, MD, PHDAddiction Psychiatry Physician1871120451
  18. Megan Blomberg, MSWClinical Social Worker1588222947
  19. Sarah BlomstedtClinical Social Worker1932758554
  20. Amir-Reza BlookiStudent in an Organized Health Care Education/Training Program1093575573
  21. Allison Bloom, MDInternal Medicine Physician1558921825
  22. Allison Bloom, PT, DPTPhysical Therapist1568136430
  23. Allyson Bloom, M.D.Internal Medicine Physician1245367689
  24. Claire Bloom, MDInternal Medicine Physician1063486207
  25. Elizabeth BloomStudent in an Organized Health Care Education/Training Program1588369052
  26. Emily BloomPhysical Therapist1669850095
  27. Jonathan Bloom, MDAnesthesiology Physician1851427272
  28. Jordan Bloom, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1265728745
  29. Judith Bloom, NPAdult Health Nurse Practitioner1780732453
  30. Seth Bloom, M.D., PH.D.Internal Medicine Physician1992069926
  31. Stephen Bloom, MDDiagnostic Radiology Physician1801979265
  32. Kimberly Bloom-Feshbach, MDInternal Medicine Physician1225441413
  33. Hadley Bloomhardt, MDPediatric Hospice and Palliative Medicine Physician1467958330
  34. Carolina Blotte, MDAnesthesiology Physician1346744588
  35. Erica Blouch, M.S.Genetic Counselor (M.S.)1750684569
  36. Gayle Blouin, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1821339169
  37. Latarah Blount, LCSWClinical Social Worker1689475279
  38. Carrie Blout, MS, CGC, LGCGenetic Counselor (M.S.)1891074225
  39. Laura Blowick, LAURA BLOWICK, MSCMental Health Counselor1306108048
  40. Ryan Bloxham, LMHCMental Health Counselor1730848508
  41. Juergen Bludau, MDGeriatric Medicine (Internal Medicine) Physician1851357198
  42. Katherine BlueClinical Social Worker1699667303
  43. Stefani Bluestein, DPTPhysical Therapist1740519669
  44. Deborah Bluestone, LICSWClinical Social Worker1144438227
  45. Aaron Blum, MS, ATC, LATAthletic Trainer1578674198
  46. Justine Blum, MDInternal Medicine Physician1245626795
  47. Nancy Blum, PSY.D.Clinical Psychologist1659580876
  48. Rachel Blum, PHARMDPharmacist1619665817
  49. Richard Blum, MD, MSEAnesthesiology Physician1023084381
  50. Steven Blum, MDHematology & Oncology Physician1447632823

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.