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 413 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. Gabriela Lagreca, D.D.S.Prosthodontics1528464989
  2. Soowhan Lah, M.D.Internal Medicine Physician1003128760
  3. Matthew Lahaie, MD, JDPsychiatry Physician1144514167
  4. Josephine Laham, RPHPharmacist1447339346
  5. Roger Laham, M.D.Interventional Cardiology Physician1184680860
  6. Colleen Lahar, MS, CCC-SLPSpeech-Language Pathologist1669774501
  7. Yonatan Lahav, M.D.Surgery Physician1073704193
  8. Edward Lahey, MD, DMDOral & Maxillofacial Surgery (D.M.D.)1265447965
  9. Hannah Lahey, MDStudent in an Organized Health Care Education/Training Program1003668732
  10. Conor Lahiff, MBStudent in an Organized Health Care Education/Training Program1780982850
  11. Zubin Lahijanian, M.DStudent in an Organized Health Care Education/Training Program1336988856
  12. Anushna LahiriStudent in an Organized Health Care Education/Training Program1073495107
  13. Karen Lahive, MDPulmonary Disease Physician1346206596
  14. Safiya Lahlaf, MDDiagnostic Radiology Physician1285212746
  15. Ritika Lahoty, RDHDentist1700344603
  16. Youmna Lahoud, MDRheumatology Physician1194039545
  17. Abbe LaiGenetic Counselor (M.S.)1033696075
  18. Amy LaiStudent in an Organized Health Care Education/Training Program1043481518
  19. Austin Lai, MDStudent in an Organized Health Care Education/Training Program1710629985
  20. Carmen Lai, DPTPhysical Therapist1144439415
  21. Christina LaiMedical Physician Assistant1750159935
  22. Christopher LaiOrthopaedic Surgery Physician1538861158
  23. Jiaxin Lai, RDN, LDNRegistered Dietitian1982569430
  24. Kenny Lai, M.D.Diagnostic Radiology Physician1184865594
  25. Kevin Lai, PA-CPhysician Assistant1992134258
  26. Kwan Kew Lai, MDInfectious Disease Physician1881618353
  27. Leonard Lai, M.D.Psychiatry Physician1154487262
  28. Lucinda Lai, MDEmergency Medicine Physician1669992848
  29. Mesou Lai, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1386804979
  30. Michelle Lai, M.D.Hepatology Physician1609030865
  31. Yvonne Lai, M.D.Anesthesiology Physician1841427382
  32. Melisa Lai-Becker, MDEmergency Medicine Physician1457387920
  33. Caitlin LaidlawClinical Social Worker1962980649
  34. Tanya Laidlaw, M.D.Rheumatology Physician1386690949
  35. Yasmin Laimon, MBBCHAnatomic Pathology & Clinical Pathology Physician1316885916
  36. Regina Laine, MSN, PNPPediatric Nurse Practitioner1700064433
  37. John LaingClinical Social Worker1699258988
  38. Alexander Lair, FNP-CFamily Nurse Practitioner1154009637
  39. Adam LairdAdult Health Nurse Practitioner1619540614
  40. Bethany LajoieSpeech-Language Pathologist1770276826
  41. Samuel Lajoie, MS, PA-CPhysician Assistant1336697382
  42. Barbara Lakatos, APRN-BCAdult Psychiatric/Mental Health Registered Nurse1467559278
  43. Neal Lakdawala, MDCardiovascular Disease Physician1235101890
  44. Isabel Lake, MDStudent in an Organized Health Care Education/Training Program1225675705
  45. Afsheen Lakhani, B.D.S,D.M.D, CAGSGeneral Practice Dentistry1386839470
  46. Sahiba LakhaniDentist1497514491
  47. Priya Lakhanpal, DMDDentist1154206035
  48. Joshua Lakin, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1194051771
  49. George LakkisOptometrist1689128704
  50. Ibrahim LakkisGeneral Practice Dentistry1073996716

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.