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 82 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. Sarah Messmer, MDChicago, IL 606121073926929
  2. Morgan Meyer, MDLombard, IL 601481679540660
  3. Gary Meyers, M.D.Arlington Heights, IL 600041275511883
  4. Kim Meyers, M.D.Evanston, IL 602011780788414
  5. Piotr Michaliszyn, MDElgin, IL 601231093177024
  6. Rachel MichalowskiChicago, IL 606121023806908
  7. Steve Michel, MDOak Park, IL 603011053340695
  8. Maria Michelotti, MDGlenview, IL 600261861569832
  9. Jay Michels, D.O.Springfield, IL 627021376476242
  10. Daniel Michniuk, DOPark Ridge, IL 600681154908796
  11. Amanda Micklo, DOEvanston, IL 602011619771508
  12. Caleb Middlebrook, MDChicago, IL 606111265136071
  13. Joan Miedema, M.D.Chicago, IL 606231356316616
  14. Angelo Miele, MDCarol Stream, IL 601881144326109
  15. Jayne Miely, M.D.Chicago, IL 606121417339524
  16. Stephen Miff, MDChicago, IL 606251366435901
  17. James Mikeworth, M.D.Pontiac, IL 617641790927309
  18. Thomas Mikkelson, MDEast Saint Louis, IL 622071881708410
  19. Sowmya Mikkilineni, M.D.Chicago, IL 606121659460798
  20. Karolina Mikos, MDNorthbrook, IL 600621023424843
  21. Christina Mikosz, MDChicago, IL 606021891921722
  22. Edmond Mila, MDPark Ridge, IL 600681578402905
  23. Mariusz Milejczyk, MDLibertyville, IL 600481467598235
  24. Danica Milenkovich, M.D.Chicago, IL 606051114902632
  25. Inna Milgram, MDVilla Park, IL 601811932197597
  26. Ahamed MilhanChicago, IL 606081689420135
  27. Adam Milik, MDMonee, IL 604491275631426
  28. Lirije Milla, MDPark Ridge, IL 600681124656079
  29. Danielle MillanChicago, IL 606111164184768
  30. Martha Millar, MDGlenview, IL 600261063591808
  31. Christopher Miller, M.D.Chicago, IL 606471154557429
  32. David Miller, D.O.Macomb, IL 614551861497612
  33. Doriane MillerChicago, IL 606371497795470
  34. Elliot Miller, MDLibertyville, IL 600481164441572
  35. James Miller, M.D.Oak Park, IL 603041730298886
  36. James Miller, MDPalos Heights, IL 604631710933544
  37. Josef Miller, MDChicago, IL 606371992440564
  38. Kayla Miller, M.D.Havana, IL 626441033524350
  39. Maryanne Miller, MDWheaton, IL 601871275500613
  40. Michael MillerLombard, IL 601481255421558
  41. Nicholas MillerChicago, IL 606571851016075
  42. Richard Miller, M.D.Northbrook, IL 600621811933195
  43. Tanner Miller, M.D.Olney, IL 624501497135065
  44. Dawson MillsEvanston, IL 602011538969381
  45. Douglas Mills, D.O.Park Ridge, IL 600681043519481
  46. Larry Milner, MDNorthbrook, IL 600621215983846
  47. Chadwick Milstead, MDChicago, IL 606111740273259
  48. Brendan Minardi, D.O.Peoria, IL 616371083097695
  49. Ali Minhas, MDPark Forest, IL 604661285884403
  50. Mohamad Minhem, M.D.Decatur, IL 625211154816445

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.