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 430 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. Sukwoo Lee, GNP-C, ANP-CAdult Health Nurse Practitioner1780985697
  2. Sun Lee, M.D.Endocrinology, Diabetes & Metabolism Physician1164699963
  3. Sunyoung LeeAcupuncturist1215168372
  4. Susan LeeClinical Social Worker1376030544
  5. Susanna Lee, MDDiagnostic Radiology Physician1558345454
  6. Ted Lee, MDPediatric Urology Physician1366855678
  7. Terrance LeeEmergency Medicine Physician1356617278
  8. Thomas Lee, MDCardiovascular Disease Physician1629042668
  9. Tien En Edison Lee, D.O.Vascular & Interventional Radiology Physician1437682465
  10. Tony Lee, MSW, LICSWClinical Social Worker1235381849
  11. William Lee, PHARM.D.Pharmacist1780786400
  12. William LeeStudent in an Organized Health Care Education/Training Program1487408449
  13. Won Lee, M.D.Geriatric Medicine (Internal Medicine) Physician1124218227
  14. Won Gi Lee, D.D.SDentist1659792844
  15. Won Seok Lee, DNPCertified Registered Nurse Anesthetist1578438834
  16. Yang Lee, MD, PHDAnatomic Pathology & Clinical Pathology Physician1023339272
  17. Yeon Woo Lee, MDObstetrics & Gynecology Physician1053872788
  18. Yerang Lee, PH.D.Clinical Psychologist1508206368
  19. Yi-Hsin Lee, RDRegistered Dietitian1740971241
  20. Yong-Tae Lee, M.D.Physical Medicine & Rehabilitation Physician1710934179
  21. Yoorim LeeDentist1902660004
  22. Young-Mee Lee, MDGastroenterology Physician1679681399
  23. Younji LeeNurse Practitioner1215756408
  24. Yu Kyung Lee, MDStudent in an Organized Health Care Education/Training Program1891484648
  25. Grace Lee Herr, CPHTPharmacy Technician1053152603
  26. Aviva Lee-Parritz, M.D.Maternal & Fetal Medicine Physician1851374193
  27. Kathleen Lee-Sarwar, M.D.Allergy & Immunology Physician1881957926
  28. Anna Lee-Young, LICSWSocial Worker1194336578
  29. Mary Leech, BAStudent in an Organized Health Care Education/Training Program1063162105
  30. Asher Leeder, D.C.Chiropractor1912912692
  31. Naomi Leeds, MDInternal Medicine Physician1659362010
  32. David Leeman, MDInterventional Cardiology Physician1932193851
  33. Jonathan Leeman, M.D.Radiation Oncology Physician1871835231
  34. Kristen Leeman, M.D.Neonatal-Perinatal Medicine Physician1437376142
  35. Adam Lefebvre, MPTPhysical Therapist1730393216
  36. Anna Lefebvre, CPNPPediatric Nurse Practitioner1245528355
  37. Daniel Lefebvre, M.D.Ophthalmology Physician1013163567
  38. Eric Lefevre, LICSWClinical Social Worker1730584624
  39. Roger Lefevre, M.D.Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1760690358
  40. Daniel Leffler, MDGastroenterology Physician1144368697
  41. Jessica Leffler, LMHCMental Health Counselor1851620330
  42. Kathleen Leflar, FNPNurse Practitioner1700246212
  43. Jocelyne Leger, CCC-SLPSpeech-Language Pathologist1497725840
  44. Kierrah Leger, RNRegistered Nurse1740438985
  45. Christopher LegereMental Health Counselor1255954426
  46. Lucas Legere, MSPTPhysical Therapist1255471702
  47. Melanie Legeros, LICSWClinical Social Worker1174747216
  48. Lydia Legg, M.S.D, D.D.S.Prosthodontics1619179827
  49. Nicole Leggiero, MDInternal Medicine Physician1649973363
  50. Loberta LegrandCase Manager/Care Coordinator1457174781

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.