NPPES file of Aug 9, 2026

Internal Medicine Physician in Illinois

7,238 NPPES records list internal medicine physician with a practice address in Illinois, 58 per 100,000 residents, the 9th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 116 of 145.

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).

Chicago has the most, 2,867

  1. Chicago2,867
  2. Maywood257
  3. Springfield196
  4. Evanston178
  5. Oak Lawn173

Internal Medicine Physician records in Illinois

  1. Charles Schwartz, M.D.Elmhurst, IL 601261073994851
  2. Cheryl Schwartz, DO, PHDSkokie, IL 600771770749434
  3. Ellen Schwartz, M.D.Deerfield, IL 600151245384684
  4. Mindy SchwartzChicago, IL 606371053474569
  5. Nathaniel SchwartzChicago, IL 606121417530643
  6. Zachary Schwartz, DOMaywood, IL 601531568264497
  7. Robert Schwartzenberg, M.D.Fox River Grove, IL 600211548272545
  8. Debra Schwartzers, MDLombard, IL 601481235107731
  9. Louis Schwing IV, MDEffingham, IL 624011467565069
  10. Anna Scigacz, MDOak Lawn, IL 604531376905307
  11. Bozena Scigacz, M.D.Addison, IL 601011053365577
  12. Katarzyna ScigaczNaperville, IL 605631558723585
  13. Renee Scola, MDChicago, IL 606111457344970
  14. Haley Scott, D.O.Oak Lawn, IL 604531083401962
  15. John Scott, MDQuincy, IL 623011356314207
  16. James Scruggs, MDWheaton, IL 601871407824089
  17. Brian Scullion, M.D.Chicago, IL 606061164793824
  18. Carl Stephen Seares, MDChicago, IL 606121710878970
  19. Marie Jennifer Seares, M.D.Chicago, IL 606121568915361
  20. Geoffrey Sebastian, M.D.Hoffman Estates, IL 601951114991163
  21. Katharine Secunda, M.D.Chicago, IL 606111023436953
  22. Vesna Sefer, M.D., M.P.H.Chicago, IL 606121548290356
  23. Kijana Seferovic, M.D.Chicago, IL 606251821038274
  24. Nora Segar, MDChicago, IL 606221548559750
  25. Yonatan Segev, MDUrbana, IL 618011255017224
  26. Brandon Segrest, DOWestmont, IL 605591063901189
  27. Neha Sehgal, DOChicago, IL 606371902487200
  28. Camiella-Louisa Sehidou, MDChicago, IL 606121245164391
  29. Shawn Seibert, MDPeoria, IL 616151437166717
  30. William Seiden, MDLake Forest, IL 600451407915978
  31. Andreas Seidler, MDMt Prospect, IL 600561063438034
  32. Uma Sekar, M.DDanville, IL 618321174622849
  33. Anil Sekhar, M.D.,Shorewood, IL 604041124203153
  34. Dusica Sekulic, MDRoscoe, IL 610731801906094
  35. Chanmoly SengOak Lawn, IL 604531912648650
  36. Daniel Senseng, M.D.Chicago, IL 606161578598157
  37. Sriviji Senthil Kumaran, M.D.Peoria, IL 616371609436724
  38. Da Hea Seo, MDAlton, IL 620021861651333
  39. Jennifer Seo, M.D.Chicago, IL 606111366707622
  40. Michelle Seo, MDMt Prospect, IL 600561437269545
  41. Alisa Seo-Lee, M.D.Chicago, IL 606121336395490
  42. Carlos Sequera Sanchez, M.D.Chicago, IL 606571770999476
  43. Matthew Serafin, MDNorthfield, IL 600931720573157
  44. Philip Serna, M.D.Joliet, IL 604351992741870
  45. Desmond SeshieBerwyn, IL 604021801632740
  46. Coleman Seskind, MDChicago, IL 606011992873244
  47. Steve Sesterhenn, MDVernon Hills, IL 600611417205915
  48. Charles Seten, MDHarrisburg, IL 629461801876719
  49. Divsheen Sethi, M.DChicago, IL 606571053864082
  50. Mehak Sethi, M.D.Chicago, IL 606431124386057

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

Illinois ranks 9 of 51 per resident

  1. Hawaii63
  2. New York62
  3. Delaware58
  4. Illinois58
  5. Michigan57
  6. Pennsylvania56
  7. 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.

72.5% 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. Illinois72.5%
  2. United States78.7%

Internal Medicine Physician records in Illinois, measured

  • In a Medicare file5,251 of 7,238 · 72.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file3,584 · 49.5% here, 61.4% nationally
  • Not updated in five years or more3,434 · 47.4% here, 55.4% nationally
  • Median graduation year2003 · the 3,580 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

7,238 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Illinois: 58 per 100,000 residents against 44 nationally (50 states and D.C.). Chicago has 2,867 of them (40%).

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. Pennsylvania7,300
  2. Massachusetts6,825
  3. Michigan5,735
  4. Texas9,175

States with a similar rate per 100,000

  1. Delaware58.1
  2. New York61.7
  3. Hawaii62.9
  4. Maryland63.2

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.