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 120 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. Ryan Sullivan, MDCambridge, MA 021381881696003
  2. Sarah Sulzner, M.D.S Weymouth, MA 021901275567190
  3. Mike Summerer, M.D.Melrose, MA 021761033398292
  4. Nicola Sumorok, M.D.Springfield, MA 011091699973404
  5. Diane Sun, MDBoston, MA 021111245721018
  6. Hui Sun, M.D.Milford, MA 017571710032578
  7. Jenny Sun, M.D.Quincy, MA 021691902035280
  8. Mei Sun, M.D.Boston, MA 021091164799599
  9. Natalie Sun, MDBoston, MA 021181316523145
  10. Stephanie Sun, M.D.Boston, MA 021141760897169
  11. Joann Suna, M.D.Natick, MA 017601801854633
  12. Rekha Sundar, M.D.Chelmsford, MA 018241356308597
  13. Shobhita Sundar, MDFall River, MA 027201467454611
  14. Shridevi Sundar, MDBedford, MA 017301396936472
  15. Meena Sundaram, MDBoston, MA 021141235111683
  16. Wei Chin Sung, MDBrockton, MA 023011659354595
  17. Lisa Sunwoo, M.D.Newton, MA 024621568560977
  18. Arihant SuranaWorcester, MA 016081699453456
  19. Anupama Surendran, MDGreenfield, MA 013011841475514
  20. Diana Suris, D.O.Worcester, MA 016051972731537
  21. Nitya Surya, MDBoston, MA 021111043914856
  22. Krishna Susarla, M.D.Chicopee, MA 010201942263371
  23. David Suskin, M.D.West Roxbury, MA 021321942594304
  24. Andrew Sussman, M.D.Worcester, MA 016551659353860
  25. Chad SussmanBoston, MA 021141407558752
  26. Dhiren Sutaria, M.D.Stoneham, MA 021801922071133
  27. Shiv Sutaria, MDSouth Weymouth, MA 021901184129066
  28. Pamela Svorinic, MDHopkinton, MA 017481245819101
  29. Jodi-Ann Swaby, M.D.Boston, MA 021351851688261
  30. Ashwin Swami, M.DBrockton, MA 023021588679005
  31. Jacqueline Swan, MDBeverly, MA 019151467565242
  32. Eric Swanson, MDCambridge, MA 021391205462249
  33. Cara Sweeney, MDBoston, MA 022151952788739
  34. Ty Sweeney, MDBoston, MA 021181699304097
  35. Charles Sweet, M.D.Auburn, MA 015011740310291
  36. Lydecke Sweet, MDCharlestown, MA 021291639160146
  37. Sandra Sweetnam, MDRevere, MA 021511457341000
  38. Bradley Switzer, MDWorrester, MA 016551184779969
  39. Susan Swords, M.D.Norwell, MA 020611932336062
  40. Wajih Syed, M.D.Framingham, MA 017021649432857
  41. Fatoumata Sylla, MDBeverly, MA 019151316689250
  42. Goslyn Sylvan, M.D.Lawrence, MA 018431851341861
  43. Jeremy Sylvan, M.D.Boston, MA 021181134355670
  44. Felix Szabo, M.D.Worcester, MA 016551669714051
  45. Ashlin Szalanski, MDBoston, MA 021141487186904
  46. Gabriel Szentpaly, M.D.Cambridge, MA 021381942233119
  47. Andrew Szumowski, M.D.Chicopee, MA 010201376506790
  48. Paige Szymanowski, M.D.Boston, MA 022151568876712
  49. John Szymanski, MDSalem, MA 019701518913383
  50. Alexa Tabackman, MDBoston, MA 021181497331599

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.