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 294 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. Joseph Grossman, M.D.Hematology & Oncology Physician1194087973
  2. Katlyn Grossman, PHARMDAmbulatory Care Pharmacist1174986962
  3. Kenneth Grossman, MDInternal Medicine Physician1104847953
  4. Mia Grossman, M.S., CCC-SLPSpeech-Language Pathologist1619320579
  5. Mila GrossmanPsychiatry Physician1528555828
  6. Neil Grossman, MDPediatric Hematology & Oncology Physician1770527715
  7. Nicole Grossman, MDPulmonary Disease Physician1619297124
  8. Shamai Grossman, MDEmergency Medicine Physician1205877834
  9. Stephanie Grossman, PH.D.Clinical Psychologist1114529005
  10. Lily Grossmann, M.D.Epilepsy Physician1871910711
  11. Andrew Grotzinger, BAStudent in an Organized Health Care Education/Training Program1124645486
  12. Stefania Grous, DMDDentist1558798082
  13. Arthur Grove, M.D.Ophthalmology Physician1093754095
  14. Aarti Grover, MDHospitalist Physician1538315668
  15. Amit Grover, MB BCH BAOPediatric Gastroenterology Physician1801028451
  16. Shilpa Grover, M.D.Gastroenterology Physician1265464796
  17. Amanda GrovesSocial Worker1588052989
  18. James Groves, MDPsychiatry Physician1013906015
  19. Amanda Growdon, M.D.Pediatrics Physician1629185202
  20. John Growdon, MDNeurology Physician1407846686
  21. Matthew Growdon, M.D., M.P.H.Internal Medicine Physician1245611532
  22. Whitfield Growdon, M.D.Gynecologic Oncology Physician1669530481
  23. Marion Growney, MSN ACNPNurse Practitioner1619042637
  24. Elise GrozFamily Nurse Practitioner1447936810
  25. Ellena Grskovic, LICSWMental Health Counselor1952741225
  26. Amy Grubb, PT, DPTPhysical Therapist1912026212
  27. Laura Grubb, M.D.Pediatrics Physician1245210780
  28. Joshua Grubbs, MD, MPHInternal Medicine Physician1447952130
  29. Florian Grubhofer, MDOrthopaedic Surgery Physician1376192807
  30. Gail Grunberg, M.D.Anesthesiology Physician1114023439
  31. Victoria Grunberg, PHDPsychologist1982224523
  32. Kenneth Grundfast, M.D.Otolaryngology Physician1336101054
  33. Karen Grundy, RNRegistered Nurse1225535420
  34. Matthew Grunert, MDAnesthesiology Physician1083856066
  35. Douglas Grunseich, CRNACertified Registered Nurse Anesthetist1609398437
  36. Annika GruppStudent in an Organized Health Care Education/Training Program1952757197
  37. Artem Grush, M.D.Anesthesiology Physician1407837420
  38. Emily Grussing, MDStudent in an Organized Health Care Education/Training Program1114787157
  39. Alana GruszeckiPharmacist1437492618
  40. Shannon Gu, MDNeurology Physician1396547352
  41. Xinyu GuMental Health Counselor1861216251
  42. Stephanie Guadagno, MSMental Health Counselor1427641208
  43. Iliana Guadalupe Menjivar, RNPediatric Nurse Practitioner1902479728
  44. Cecilia GuadalupiStudent in an Organized Health Care Education/Training Program1962233973
  45. Rong Guan, M.D.Internal Medicine Physician1760439921
  46. Cara GuardinoAdvanced Heart Failure and Transplant Cardiology Physician1881135051
  47. Eric Guardino, DOInternal Medicine Physician1639673346
  48. Jill Guarecuco, PH.D.Psychologist1245805480
  49. Andrea Guarente, CNPFamily Nurse Practitioner1740797414
  50. Claudia GuauqueCounselor1992050520

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.