NPPES file of Aug 9, 2026

Internal Medicine Physician in Massachusetts

6,825 NPPES records list internal medicine physician with a practice address in Massachusetts, 97 per 100,000 residents, the 2nd highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 21 of 137.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Boston has the most, 2,320

  1. Boston2,320
  2. Worcester448
  3. Cambridge300
  4. Springfield282
  5. Burlington144

Internal Medicine Physician records in Massachusetts

  1. Daniel Chandler, M.D.Boston, MA 021111760440168
  2. Paulette Chandler, MDBoston, MA 021151790742120
  3. Madhuri Chandnani, M.D.Lawrence, MA 018411699172585
  4. Lucas Chandra, DOBoston, MA 021181891498259
  5. Poongodi Chandrasekaran, MDSalem, MA 019701558672188
  6. Aditya Chandrasekhar, M.D.Boston, MA 022151235425760
  7. Allen Chang, M.D.Worcester, MA 016551225265051
  8. Bailey Chang, MDBoston, MA 021181427494913
  9. Brian ChangBoston, MA 021141114629987
  10. Christine Chang, M.D.Worcester, MA 016081467441170
  11. Emily Chang, M.D.Millbury, MA 015271467848382
  12. Hannah Chang, M.D., PH.D.Boston, MA 022151295055887
  13. Jack Chang, MDLowell, MA 018521811182041
  14. Jaime Chang, MDBoston, MA 021141205825197
  15. Janet Chang, M.D.Wellesley, MA 024811598705022
  16. Joann Chang, MDFall River, MA 027201477083061
  17. Jonathan Chang, M.D.Boston, MA 021181750840955
  18. Kevin Chang, MDJamaica Plain, MA 021301962241745
  19. Leslie Chang, MDBoston, MA 021141720578818
  20. Margret Chang, M.D.Uxbridge, MA 015691902124282
  21. Pei-Ling Chang, MDBoston, MA 021181275111742
  22. Stephen Chang, MDBoston, MA 021141386103646
  23. Susan Chang, MDBoston, MA 021151699942763
  24. Thanissara Chansakul, M.D.Cambridge, MA 021381457635252
  25. Hanna Chao, M.D.Chelsea, MA 021501376581991
  26. Sujana Chaparala, MDNorth Easton, MA 023561801835277
  27. Chava Chapman, M.D., M.P.H.Boston, MA 021181558346239
  28. Sheila Chapman, M.D.Boston, MA 021181720043086
  29. Claudia Chapuy, M.D.Boston, MA 021151982925384
  30. Richelle Charles, MDBoston, MA 021141710961032
  31. Joseph Charpentier, D.O.Worcester, MA 016551346476132
  32. Sarun Charumilind, MD, MSCBoston, MA 021141265637862
  33. Gerald Chase, M.D.Worcester, MA 016051720061468
  34. Iryna Chastain, M.D.Worcester, MA 016081285801407
  35. Marcia Chatfield, D. O.Arlington, MA 024761316048739
  36. Avik Chatterjee, M.D.Boston, MA 021181407020415
  37. Nobita Chatterjee, M.D.Newton, MA 024591417981176
  38. Neena Chaturvedi, M.D.Hyannis, MA 026011518091172
  39. Rahul Chaturvedi, M.D.Hyannis, MA 026011083707624
  40. Frank Chau, M.D.Southborough, MA 017721003840315
  41. Zaeem Chaudary, DOSpringfield, MA 011071083317515
  42. Smita Chaudhari, MDDracut, MA 018261134298540
  43. Arun Chaudhary, M.D.Cambridge, MA 021381255371043
  44. Omer Chaudhary, M.DWorcester, MA 016081467709535
  45. Saqib Chaudhary, M.D.Worcester, MA 016051083807887
  46. Adeel ChaudhryBoston, MA 021151083291652
  47. Shahzeb Chaudhry, MDBoston, MA 021351770334567
  48. Kirankumar Chauhan, MDFeeding Hills, MA 010301306820535
  49. Monica Chavez, MDBoston, MA 021351669535340
  50. Prianka Chawla, M.D.Boston, MA 021111013270099

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia133
  2. Massachusetts97
  3. Rhode Island94
  4. Connecticut73
  5. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.5% of these records appear in a Medicare file, against 78.7% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Massachusetts74.5%
  2. United States78.7%

Internal Medicine Physician records in Massachusetts, measured

  • In a Medicare file5,088 of 6,825 · 74.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file4,103 · 60.1% here, 61.4% nationally
  • Not updated in five years or more4,346 · 63.7% here, 55.4% nationally
  • Median graduation year2004 · the 4,103 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

6,825 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Massachusetts: 97 per 100,000 residents against 44 nationally (50 states and D.C.). Boston has 2,320 of them (34%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Illinois7,238
  2. Pennsylvania7,300
  3. Michigan5,735
  4. Ohio5,277

States with a similar rate per 100,000

  1. Rhode Island94.3
  2. Connecticut72.5
  3. Maryland63.2
  4. Hawaii62.9

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

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.