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 23 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. Erica Childs, MDSomerville, MA 021431952579997
  2. Kalpana Chilukuri, MDPittsfield, MA 012011285913038
  3. Danny Chin, MDBoston, MA 021141689664351
  4. David Chin, M.D.Weston, MA 024931962546655
  5. Kevin Chin, MDBoston, MA 021111568430593
  6. Larry Chin, MDBrighton, MA 021351760476832
  7. Thomas Chin, M.D.Springfield, MA 011071619300092
  8. William Chin, M.D.Boston, MA 021151841471620
  9. James Chingos, MDHyannis, MA 026011508826421
  10. Garrett Chinn, M.D.Boston, MA 021141013144567
  11. Pramodhya Chirasevinupraphand, MDAshland, MA 017211932197266
  12. John Chisholm, D.O.Norwood, MA 020621639291792
  13. Pooja Chitneni, MDBoston, MA 021151639438740
  14. Harshad Chitre, MDWorcester, MA 016051245335314
  15. Nandini Chitre, MDWorcester, MA 016051174628242
  16. Madhav Chittimalla, MB,BSSpringfield, MA 011071063091502
  17. Hyungjin Cho, M.D.Boston, MA 021151760657050
  18. Takugo Cho, MDWorcester, MA 016081699527333
  19. Wonkyung Cho, MD, MPHBoston, MA 021151639872245
  20. Alexander ChoiBoston, MA 021151518586023
  21. Elisa Choi, M.D.Somerville, MA 021441942268362
  22. Gyu Cheol Choi, M.DWorcester, MA 016051770036451
  23. Jin Choi, M.D.Boston, MA 021141477593119
  24. Monica ChoiBoston, MA 021111922948645
  25. Yoon Choi, MDBrockton, MA 023011174598742
  26. Nidhi Chojar, M.D.Worcester, MA 016551023009636
  27. Peter Choo, M.D.Methuen, MA 018441346277886
  28. Peggy Chou, MDNorwood, MA 020621528056520
  29. Rosemary Chou, MDBurlington, MA 018051023116043
  30. Fouad Chouairi, MDBoston, MA 021151154909075
  31. Niteesh Choudhry, MD PHDBoston, MA 021151861444960
  32. Urey Chow, D.O.Beverly, MA 019151114458296
  33. Ranjan Chowdhry, M.D.Bellingham, MA 020191386794675
  34. Monzurul Chowdhury, M.D., M.R.C.P.Marlborough, MA 017521770875817
  35. Michael Christakis, M.D.Worcester, MA 016051619914835
  36. Nicholas Christakis, MD PHDBoston, MA 021141881684520
  37. Theodora Christopher, MDHaverhill, MA 018301427092576
  38. Alexander ChuBoston, MA 021151215780002
  39. Benson Chu, M.D.Revere, MA 021511356305155
  40. Jaclyn Chu, M.D.Boston, MA 021111730322256
  41. Jacqueline Chu, MDNorth Chelmsford, MA 018631619359858
  42. Paul ChuBoston, MA 022151780849984
  43. Sarah Chu, M.D.Boston, MA 021151821232919
  44. Alvin Chua, M.D.Brookfield, MA 015061215927504
  45. Eunice Chuang, M.D.Cambridge, MA 021381851687529
  46. Warren Chuang, M.D.Boston, MA 021181982862975
  47. Henry Chueh, MDBoston, MA 021141992796353
  48. Eric Chun, MDBeverly, MA 019151700826872
  49. Leslie Chun, M.D.Boston, MA 021411093804940
  50. Jeanhee Chung, MDBoston, MA 021141366416588

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.