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 30 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. Shirish Desai, M.D.Tewksbury, MA 018761467488601
  2. Franco Desantis, M.D.Chicopee, MA 010201245297142
  3. Deepthi Desilva, MDWrentham, MA 020931184682759
  4. Alex DesjarlaisBoston, MA 021111831992213
  5. George Despines, MDWhitman, MA 023821811970759
  6. Laura Desrochers, MDBoston, MA 022151861052227
  7. Carl Dettman, M.D.Boston, MA 021301376593418
  8. Lily Devaraj, MDBoston, MA 021141295153021
  9. Michael Devine, D.O.Worcester, MA 016051487017315
  10. Praveen Devineni, M.DLeominster, MA 014531245586346
  11. Marjorie Devries, M.DPittsfield, MA 012011962438135
  12. Sanjiban Dey, MDStoneham, MA 021801043969470
  13. Babak Deyhimpanah, MDFall River, MA 027211518298918
  14. Dustin Dezube, MDBoston, MA 021141629416243
  15. Iqubal Dhaliwal, M.D.Wrentham, MA 020931770694556
  16. Suneel Dhand, MDSalem, MA 019701255516472
  17. Sumalatha Dhanireddy, M.D.Brockton, MA 023011457315657
  18. Shusmita Dhar, MDNewton, MA 024641255467965
  19. Rajesh Dharampuriya, M.D.Clinton, MA 015101992801971
  20. Tiffany Dharia, MDBoston, MA 021141023578192
  21. Kabilan Dharmarajan, MDLowell, MA 018541619148046
  22. Aarish Dhillon, MDBurlington, MA 018051306524889
  23. Sandeep Dhillon, M.D.Burlington, MA 018051942225040
  24. Gagandeep Dhingra, M.DWorcester, MA 016051497993224
  25. Sirjana Dhungana Parajuli, MDWareham, MA 025711063606473
  26. Michael Di Bella, D.O.Leeds, MA 010531538198668
  27. Abdul-Rahman Diab, MDBoston, MA 021151811699572
  28. David Diamond, MDCambridge, MA 021391265411664
  29. Eric Diamond, M.D.Westwood, MA 020901285607861
  30. Olivia Diamond, M.D.Cambridge, MA 021381306251087
  31. James Diao, MDBoston, MA 021151891548731
  32. Leny Dias-CunhaBoston, MA 021141790424182
  33. Maria Diaz, M.D.Lawrence, MA 018411023124880
  34. Maria Paula Diaz Soto, MDBoston, MA 021141659876738
  35. Marvin Diaz-Lacayo, M.D.Dorchester Center, MA 021241477590214
  36. Kevin Dibona, MDBoston, MA 021181851094486
  37. Mark Dichter, MDBrockton, MA 023011275527020
  38. Jefferson Dickey, MDChicopee, MA 010201689696924
  39. Thomas Dickinson, M.D.Brockton, MA 023011699739284
  40. William Dickinson, M.D.Boston, MA 021151306341300
  41. Anu Diddee, M.D.Peabody, MA 019601932214178
  42. Gvantsa Didebulidze, M.DBrockton, MA 023011730474644
  43. Kurt Diebold, MDLynn, MA 019041114993516
  44. Jules Dienstag, MDBoston, MA 021141710959390
  45. Bradford Diephuis, M.D.Boston, MA 021151730537424
  46. Abraham Dietz, MDHyannis, MA 026011518917186
  47. Matthew Difrancesco, MDBoston, MA 021141861805855
  48. Byron Diggs, MDArlington, MA 024761902943087
  49. John Diggs, M.D.Monson, MA 010571235226655
  50. Zechariah Dillingham, M.D.Natick, MA 017601144673823

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.