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 344 of 838.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Boston

  1. Students in training6,126
  2. Internal Medicine Physician2,320
  3. Clinical Social Worker1,906
  4. Physician Assistant1,660
  5. Anesthesiology Physician1,082
  6. Nurse Practitioner961
  7. Family Nurse Practitioner938
  8. Diagnostic Radiology Physician896

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. Giovanna Ignacio Subira Medina, MD, PHDSports Medicine (Orthopaedic Surgery) Physician1508483132
  2. Jasmin Ignatius, D.O.Family Medicine Physician1790931624
  3. Lisa Ignudo, RNCase Management Registered Nurse1770253312
  4. Kelsey Igo, PA-CPhysician Assistant1891263935
  5. Cecilia Igwe-Kalu, FNP-CNurse Practitioner1679345078
  6. Ellen IjeborStudent in an Organized Health Care Education/Training Program1255017760
  7. Kamma Ike, RNRegistered Nurse1063644219
  8. Daniel IkedaStudent in an Organized Health Care Education/Training Program1841992468
  9. Kentaro Ikeda, DDSOral and Maxillofacial Surgery (Dentist)1467582577
  10. Toshiko Ikemoto, PA-CSurgical Physician Assistant1619042660
  11. Kanayochukwu Ikeneme, MDDiagnostic Radiology Physician1497375539
  12. Amanda Ikonos Lang, FNP-BCFamily Nurse Practitioner1134899370
  13. Naira IkramStudent in an Organized Health Care Education/Training Program1033063052
  14. Ifeoma IkwuanusiPsychiatric/Mental Health Nurse Practitioner1245093582
  15. Shruthi Ilango, MDStudent in an Organized Health Care Education/Training Program1124967088
  16. Erwin Ilano, MDPsychiatry Physician1972674364
  17. Lenka Ilcisin, MDStudent in an Organized Health Care Education/Training Program1861924771
  18. Brandon IlechukwuPsychiatry Physician1568048668
  19. Annette Ilg, M.D.Emergency Medicine Physician1629427919
  20. Tudor Ilies, DMDOral and Maxillofacial Surgery (Dentist)1841057486
  21. Irina IlievaNurse Practitioner1205204864
  22. Othon Iliopoulos, MDMedical Oncology Physician1447352448
  23. Saba Ilkhani, MDStudent in an Organized Health Care Education/Training Program1467255026
  24. Melissa Illig, CRNACertified Registered Nurse Anesthetist1629631007
  25. Sanna Ilonen, MD, PHDStudent in an Organized Health Care Education/Training Program1457872392
  26. Titilayo Ilori, M.DNephrology Physician1104090877
  27. Maya Ilowite, MDPediatric Hematology & Oncology Physician1649579012
  28. Matthew Ilse, PHARMD RPHPharmacist1396990768
  29. Anna Iltis, RNRegistered Nurse1164845525
  30. Anna IlyasovaStudent in an Organized Health Care Education/Training Program1588502587
  31. Dana Im, MDEmergency Medicine Physician1376991901
  32. Jonathan ImStudent in an Organized Health Care Education/Training Program1902640634
  33. Justin Im, MDStudent in an Organized Health Care Education/Training Program1245032846
  34. Dunya Imad, MDNuclear Medicine Physician1255962700
  35. Sotonye Imadojemu, M.D., M.B.E.Dermatology Physician1902165012
  36. David ImberPediatric Anesthesiology Physician1598224305
  37. Lindsay Imber, MDOphthalmology Physician1629637236
  38. Michelle Imber, PH.D.Clinical Neuropsychologist1346241932
  39. Hazell Imbert, LMHCMental Health Counselor1578286183
  40. Elsa Imbimbo, MDInternal Medicine Physician1194352492
  41. Sydney Imhoff, AU.D.Audiologist1093508202
  42. Marcin Imielinski, MD, PHDAnatomic Pathology & Clinical Pathology Physician1912167438
  43. Jason Ina, MDSports Medicine (Orthopaedic Surgery) Physician1255838058
  44. Muhammad InamBehavior Technician1861904542
  45. Didem Inanoglu, M.D.Physical Medicine & Rehabilitation Physician1255324422
  46. Hanine Inaty, M.DInternal Medicine Physician1881972586
  47. Santoshi Indrakanti, MDDiagnostic Radiology Physician1669811907
  48. Manuel InfantePhysician Assistant1740059864
  49. Maricarmen Infante De GonzalezStudent in an Organized Health Care Education/Training Program1861350027
  50. Margaret Infeld, M.D.Clinical Cardiac Electrophysiology Physician1730507252

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.