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 23 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. Ariel Chavez, MDChicago, IL 606091902978257
  2. Hitanshu Chawla, M.D.Mount Vernon, IL 628641942645692
  3. Raashi ChawlaUrbana, IL 618011457847584
  4. Alina Cheema, DOBloomingdale, IL 601081952982712
  5. Ayesha CheemaSpringfield, IL 627021902581713
  6. Ismat Cheema, DOMount Vernon, IL 628641205226560
  7. Ronald Cheff, MDElmhurst, IL 601261326144643
  8. Alan Chen, MDChicago, IL 606121780426734
  9. Amy Chen, MDChicago, IL 606041154663532
  10. Catherine ChenChicago, IL 606111598480717
  11. Chen Chen, MDChicago, IL 606111356997589
  12. Cory Chen, MDChicago, IL 606301851394548
  13. David Chen, M.D., D.C.Peoria, IL 616371417279993
  14. Jason Chen, MDChicago, IL 606171972543239
  15. Kevin Chen, MDMarion, IL 629591740291780
  16. Mao Chen, M.D.Chicago, IL 606341295794345
  17. Melissa Chen, M.D.Gurnee, IL 600311942261516
  18. Michael Chen, M.D., PH.D.Chicago, IL 606111891226379
  19. Michael ChenChicago, IL 606161861954695
  20. Tsungyen Chen, M.D.Urbana, IL 618011578095055
  21. Catherine Cheng, MDRiverside, IL 605461124046446
  22. Gloria Cheng, MDMacomb, IL 614551710962048
  23. Joyce Cheng, MDRockford, IL 611081407310733
  24. Leslie Cheng, MDElmhurst, IL 601261922203991
  25. Tuangui Cheng, MDMacomb, IL 614551508841842
  26. Garrett Cherry, MDChicago, IL 606081972498004
  27. Nishitha CherukumalliUrbana, IL 618011316329766
  28. Eleanor CheungChicago, IL 606371770382186
  29. Joanne Cheung, M.D.Downers Grove, IL 605151811165384
  30. Navika Chhabra, MDChicago, IL 606121356901987
  31. Muskaan Chhibber, DOChicago, IL 606121225922032
  32. Euna Chi, MDChicago, IL 606121669762555
  33. Gene Chiao, MDNorthbrook, IL 600621699733188
  34. Diana Chicos, M.D.Chicago, IL 607071932132230
  35. Karthik ChidambaramChicago, IL 606121457287393
  36. Mark Chien, M.D.Chicago, IL 606111356374383
  37. Bozhidar Chifchiev, MDChicago, IL 606401437981461
  38. Premsai ChilakuluriRiverside, IL 605461255252011
  39. Akanksha Chilukuri, MDChicago, IL 606401831086164
  40. Joseph Chimino, D.O.Des Plaines, IL 600161386800746
  41. Marielle Nicole Chin, MDChicago, IL 606571417875568
  42. Marshall ChinChicago, IL 606371164584611
  43. Sophia Chin, MDOak Forest, IL 604521972621837
  44. Namrata ChintalapatiChicago, IL 606111376212332
  45. David Chiou, M.D.Mundelein, IL 600601093779084
  46. Sheba Chiplunkar, M.D.Oak Park, IL 603041356374656
  47. Sebastian Chirayil, MDMaywood, IL 601531255181848
  48. Radha Chirumamilla, M.D.Winfield, IL 601901649560129
  49. Solab Chitrakar, MDRockford, IL 611071750934584
  50. Kamala Chittivelu, M.D.Pekin, IL 615541649200346

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.