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 80 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. Peter Mayock, M.D.Chicago, IL 606401285735142
  2. Aimee Mayuga, M.D.Burr Ridge, IL 605271659538585
  3. Yazan MazahrehElgin, IL 601231689806838
  4. Alaleh Mazhari, D.O.Maywood, IL 601531326299611
  5. Benjamin Mba, MDChicago, IL 606121356378749
  6. Cathy McAfee, M.D.Springfield, IL 627031154579308
  7. Nicole McAlvany, DOChicago, IL 606251205459856
  8. Francis McBee-Orzulak, MDPeoria, IL 616371952314114
  9. Sean McBrayer, MDMaywood, IL 601531306425699
  10. Quinn McBride, MDChicago, IL 606111710724992
  11. John McCarthy, MDCanton, IL 615201033327069
  12. Ryan McCarty, M.D.Springfield, IL 627021013368646
  13. Tenisha McCaskill, M.DChicago Heights, IL 604111659729663
  14. Roger McClintock, M.D.Taylorville, IL 625681043318066
  15. James McClure, MDEvanston, IL 602021053320374
  16. Tegan McCormickChampaign, IL 618221417222670
  17. Levi McDaniel, M.D.Maywood, IL 601531568705333
  18. Anne McDermott, MDChicago, IL 606371902595341
  19. Deborah McDermott, M.D.Swansea, IL 622261013998152
  20. Mary McDermott, M.D.Chicago, IL 606111992911028
  21. Lynn McDonald, M.D.Bourbonnais, IL 609141033253539
  22. Raymond McDonald, MDRiver Forest, IL 603051942203500
  23. Jennifer McDonnell, MDChicago, IL 606121689839607
  24. Kenneth McDonnell, M.D.Scott Afb, IL 622251457346314
  25. Michael McDonnell, M.D.Chicago, IL 606291467436972
  26. Richard McDonnell, MDPeoria, IL 616371124096482
  27. Paul McFarlane, M.D.Palos Hills, IL 604651992975619
  28. Katherine McGee, MDChicago, IL 606111639560303
  29. Denise McGuffin, MDNormal, IL 617611245328574
  30. Kent McGuire, M.D.Elgin, IL 601231699720938
  31. Maya McKeeChicago, IL 606371972293892
  32. Maxwell McKee-Proctor, MDChicago, IL 606121962196477
  33. Caileigh McKenna, M.D.Chicago, IL 606371306227616
  34. Teresa McKenzie, MDRiver Forest, IL 603051366488033
  35. Kathleen McKibbin, M.D.Evanston, IL 602081134216914
  36. Anthony McKitty, M.D.Chicago, IL 606101396750790
  37. Kali McKnightChicago, IL 606121629926837
  38. Hanna McKown, DOChicago, IL 606121013611029
  39. Monika McLain, MDBannockburn, IL 600151376539718
  40. Scott McLain, MDBloomington, IL 617041669463436
  41. Margaret McLaughlin, M.D.Chicago, IL 606121497867048
  42. Kaitlin McLean, MD, PHDChicago, IL 606371265111702
  43. Margaret McMahon, MDMaywood, IL 601531851366900
  44. Scott McNaughton, M.D.St Charles, IL 601741073510335
  45. Michael McNear, MDCarrollton, IL 620161619934304
  46. Diana McNulty, MDFreeport, IL 610321215900105
  47. Robert McNutt, MDClarendon Hills, IL 605141164788626
  48. Richard McPartlin, MDDowners Grove, IL 605151700853140
  49. Kenneth McQuade, M.D.Rolling Meadows, IL 600081659482933
  50. Ronald McQuigg, MDLa Grange, IL 605251326241514

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.