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 111 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. Ali Seddighzadeh, M.D.Brighton, MA 021351780632927
  2. Paul Sedgwick, MDWorcester, MA 016051366559460
  3. Andrew Segal, M.D.Boston, MA 021141013167048
  4. Jerrianne Seger, M.D.Shrewsbury, MA 015451447233119
  5. Elmir Sehic, M.D.Dennis, MA 026381972650455
  6. Mary Seibel, M.D.Framingham, MA 017021205873833
  7. Ryan Seibert, M.D.Burlington, MA 018031912263864
  8. Adrianne Seiler, MDSpringfield, MA 011071265641583
  9. Leslie Selbovitz, MDNatick, MA 017601225059041
  10. Kevin SelbyBoston, MA 022151649407164
  11. Mark Selby, D.O.Pittsfield, MA 012011265476782
  12. Eva Selhub, M.D.Chestnut Hill, MA 024671760436364
  13. Sara SeligBoston, MA 021151093915639
  14. Alfredo Selim, M.D.West Roxbury, MA 021321457395527
  15. Jason Selinger, D.OHyannis, MA 026011407240120
  16. Mitchell Selinger, MDBrockton, MA 023011669453536
  17. Harry Selker, MDBoston, MA 021111235240995
  18. Maclean Sellars, MD, PHDBoston, MA 021141326402272
  19. William Sellers, M.D.Cambridge, MA 021391386770972
  20. Jeffrey Sellman, MDBoston, MA 021181003348913
  21. Senthil Selvaraj, M.D., M.A.Boston, MA 021151417395823
  22. Vijairam Selvaraj, MDGreenfield, MA 013011942566856
  23. J Semaan, MDPeabody, MA 019601932197282
  24. Rita SemaanWorcester, MA 016051205077716
  25. Ephraim Semah, M.D.New Bedford, MA 027401922045822
  26. Marina Semenova, M.D.Pittsfield, MA 012011902043144
  27. Gunjan Senapati, M.D.Cambridge, MA 021411851523195
  28. Fnu Senin, MDWorcester, MA 016081831744275
  29. Michael Senter-ZapataBoston, MA 021151235699943
  30. Dong Joo Seo, MDWeymouth, MA 021901750877221
  31. Kieun Seok, MDBoston, MA 021141598261992
  32. Shwetha Sequeira, MDBoston, MA 021181982867578
  33. Thomas Sequist, MDBoston, MA 021201982660288
  34. Manikandan Seralathan, MDSpringfield, MA 011041265093876
  35. Judith Sernamontros, MDBoston, MA 021141902932759
  36. Eric Serrano, MDWellesley, MA 024811295803146
  37. Nancy Serrell, MDChelsea, MA 021501528058278
  38. Arshiya Seth, MDMashpee, MA 026491538347018
  39. Kwonjune Seung, M.D.Boston, MA 021151659543437
  40. Sarah Sevigny, DOWorcester, MA 016081164115796
  41. Susan Seward, MDBoston, MA 021141295703932
  42. Arthur Sgalia, MDPalmer, MA 010691104815695
  43. Reham Shaaban, DOSpringfield, MA 011071023223138
  44. John Shackelford, DOHarwich, MA 026451598724072
  45. Bhumi Shah, M.D.North Billerica, MA 018621700052388
  46. Darshan Shah, MDBoston, MA 021301659383396
  47. Jui Shah, MDBurlington, MA 018051437837366
  48. Khushboo Shah, M.D.Worcester, MA 016551619233830
  49. Kushal Shah, MDBurlington, MA 018051457736274
  50. Madhukar Shah, M.D.South Hamilton, MA 019821285937714

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.