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 421 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. Callie Laubacher, MS, RDNRegistered Dietitian1184500332
  2. Thomas Laudate, PH.D.Clinical Neuropsychologist1861756926
  3. Aksel LaudonStudent in an Organized Health Care Education/Training Program1982552295
  4. Richard Laudon, ODOptometrist1831199116
  5. Silas Laudon, PA-CPhysician Assistant1811403611
  6. Janelle Laudone, M.D.Pediatrics Physician1386936920
  7. Dariah LauerOphthalmology Physician1063162568
  8. Jason Lauer, M.D.Diagnostic Radiology Physician1841726445
  9. Yen Lauer, PA-CPhysician Assistant1447758735
  10. Judith Lauerman, RNRegistered Nurse1841891405
  11. Marc Laufer, MDObstetrics & Gynecology Physician1679539969
  12. Rena Kane Laughlin, APRNAcute Care Nurse Practitioner1740614841
  13. Roberto Laureles, PA-SStudent in an Organized Health Care Education/Training Program1669392775
  14. Sarah Laurello, AU.D.Audiologist1972918340
  15. Colleen Laurence, MD, MPHEmergency Medicine Physician1982109153
  16. Megan Laurendeau, MDStudent in an Organized Health Care Education/Training Program1720926959
  17. Shari LaurentSocial Worker1780826578
  18. Stephanie LaurentDoula1659186021
  19. Christine Lauria, NPNurse Practitioner1629136726
  20. Marisa Lauria, NPNurse Practitioner1023393857
  21. Jessica Laurie, M.S.W LICSWClinical Social Worker1588863732
  22. Olivia LaurinaitisBehavior Technician1720692973
  23. Edna Laurino, NPNurse Practitioner1669539201
  24. Peter Laussen, MDPediatric Critical Care Medicine Physician1073584967
  25. Denise Lautenbach, M.S.Genetic Counselor (M.S.)1013225010
  26. Evelyn LautureSocial Worker1326176660
  27. Sade LautureStudent in an Organized Health Care Education/Training Program1063827947
  28. David Lautz, MDSurgery Physician1033132303
  29. Gregory Lauwers, MDAnatomic Pathology Physician1841280674
  30. Timothy Laux, MDCritical Care Medicine (Internal Medicine) Physician1629333752
  31. Sarah Lavalette, CRNA,MSCertified Registered Nurse Anesthetist1811921125
  32. Julianne Lavelle, FNP-CFamily Nurse Practitioner1336505239
  33. Nora Laver, MDAnatomic Pathology Physician1871601526
  34. Michelle Laverriere, PA-CPhysician Assistant1962120204
  35. Siobhan Laverty, RNNurse Practitioner1033981055
  36. Heather Lavery, MS, RDN, LDNRegistered Dietitian1750907267
  37. Nora Lavery, M.S., SLP-CFSpeech-Language Pathologist1689056467
  38. Tracey Lavey, NPAdult Health Nurse Practitioner1942378849
  39. Aviad Lavian, MDSports Medicine (Internal Medicine) Physician1700494028
  40. Madison Lavigne, FNP-BCFamily Nurse Practitioner1902722150
  41. Timothy Lavigne, PHDClinical Psychologist1205374857
  42. Amir Laviv, DMDOral & Maxillofacial Surgery (D.M.D.)1568727071
  43. Yosef LavivNeurological Surgery Physician1598150237
  44. Camryn LavoieStudent in an Organized Health Care Education/Training Program1265305155
  45. Kathleen Lavoie, FNP-CNurse Practitioner1174098636
  46. Nathan Lavoie, PA-CPhysician Assistant1760084347
  47. Ophelie Lavoie-GagneStudent in an Organized Health Care Education/Training Program1154907194
  48. Anica Law, M.D.Pulmonary Disease Physician1336468123
  49. Brandon Law, MDRheumatology Physician1578128864
  50. Cindy Law, MDGastroenterology Physician1649903634

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.