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 130 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. Connie Chang, M.D.Diagnostic Radiology Physician1629192125
  2. Daniel ChangStudent in an Organized Health Care Education/Training Program1427704675
  3. David Chang, DMDOral and Maxillofacial Surgery (Dentist)1083879829
  4. David ChangCardiovascular Disease Physician1457730269
  5. Denis Chang, MDPediatric Gastroenterology Physician1952747420
  6. Elvin ChangPhysical Therapist1780426908
  7. Emily Chang, MDStudent in an Organized Health Care Education/Training Program1336089507
  8. Emily ChangPhysician Assistant1104749720
  9. Enchi Chang, MDOphthalmology Physician1063005593
  10. Han-Ying ChangOphthalmology Physician1184882870
  11. Hannah Chang, M.D., PH.D.Internal Medicine Physician1295055887
  12. Heidi Chang, MDStudent in an Organized Health Care Education/Training Program1053165498
  13. Il Won Chang, DDSDentist1992377808
  14. In Gyu ChangAcupuncturist1568153468
  15. Jacqueline Chang, M.D.Pulmonary Disease Physician1003929696
  16. Jaime Chang, MDInternal Medicine Physician1205825197
  17. James Ducksoon Chang, M.D.Cardiovascular Disease Physician1184661878
  18. Janis Chang, MDDermatology Physician1972489722
  19. Jason ChangBehavior Technician1407457252
  20. Jonathan Chang, M.D.Internal Medicine Physician1750840955
  21. Joyce Chang, M.D.Pediatric Rheumatology Physician1437412756
  22. Kevin Chang, M.D.Diagnostic Radiology Physician1588613491
  23. Kevin Chang, M.D.Student in an Organized Health Care Education/Training Program1134462799
  24. Kimberly Chang, DMDDentist1033291653
  25. Kitae Chang, MDAnesthesiology Physician1972132900
  26. Lee-Shing Chang, M.D.Endocrinology, Diabetes & Metabolism Physician1033473624
  27. Leslie Chang, MDInternal Medicine Physician1720578818
  28. Margaret Chang, M.D., PH.D.Pediatric Rheumatology Physician1194067678
  29. Marvin Chang, MD, PHDAnesthesiology Physician1316381296
  30. Melissa ChangStudent in an Organized Health Care Education/Training Program1992509996
  31. Michael Chang, MDDermatology Physician1518609684
  32. Pei-Ling Chang, MDInternal Medicine Physician1275111742
  33. Peter Chang, M.D.Urology Physician1275733867
  34. Romeo Chang, MDOphthalmology Physician1508856600
  35. Sarah Chang, MD, PHDStudent in an Organized Health Care Education/Training Program1588512701
  36. Shin ChangStudent in an Organized Health Care Education/Training Program1861294464
  37. Sophia ChangStudent in an Organized Health Care Education/Training Program1285572123
  38. Stephen Chang, MDInternal Medicine Physician1386103646
  39. Steven Chang, M.D., M.S.Urology Physician1962699785
  40. Su-Pen Bobby Chang, MDAnesthesiology Physician1851344741
  41. Susan Chang, MDInternal Medicine Physician1699942763
  42. Theresa Chang, MDAnesthesiology Physician1013976547
  43. Timothy ChangPediatric Hematology & Oncology Physician1578190476
  44. Trina Chang, MD, MPHPsychiatry Physician1073649786
  45. Tsu-Yin Chang, MSW, LICSWClinical Social Worker1457550725
  46. Wylie Chang, NREMTBasic Emergency Medical Technician1033001532
  47. Yeu-Shin Cindy Chang, M.D., M.P.H.Emergency Medicine Physician1003158817
  48. Yi Shuen ChangDiagnostic Radiology Physician1609498898
  49. Yishin Chang, MD, PHDStudent in an Organized Health Care Education/Training Program1629820444
  50. Yu-Ming Chang, MD-PHDDiagnostic Radiology Physician1205065943

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.