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 9 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. Mario Arevalo, M.D.Oak Lawn, IL 604531912439407
  2. Mark Anton Arganda, MDChicago, IL 606121144895954
  3. Eric Arhin, MDChicago, IL 606121477484145
  4. Mim AriChicago, IL 606371588989826
  5. Istiklal Arikan, MDPark Ridge, IL 600681356402812
  6. Kinji Arikawa, MD/MBBSChicago, IL 606121083467484
  7. Chloe Arima, MDNorth Chicago, IL 600641548910052
  8. Deepa Arla, D.O.Chicago, IL 606151144478231
  9. Latha Arla, DOLisle, IL 605321578548921
  10. Lars Armainsson, MDChicago, IL 606231336259514
  11. Genan ArmanSpringfield, IL 627021487339453
  12. Daniel ArndorferChicago, IL 606111821747007
  13. Damon Arnold, M.D.Chicago, IL 606161689650962
  14. Jason Arnold, MDChicago, IL 606111912371725
  15. Joshua Arnold, MD, MSChicago, IL 606121194301572
  16. Justin ArnoldChicago, IL 606111588389704
  17. Alan Aronson, MDVernon Hills, IL 600611992864946
  18. Benjamin AronsonChicago, IL 606371831888213
  19. Godson Aronu, MDChicago, IL 606571104114552
  20. Hardeep Arora, M.D.Naperville, IL 605641922057926
  21. Mukesh Arora, MDCrystal Lake, IL 600141518975796
  22. Narinder Arora, M.D.Effingham, IL 624011477576924
  23. Navdip Arora, M.D.Effingham, IL 624011902117328
  24. Ruby Arora, MDChicago, IL 606121902506413
  25. Vineet AroraChicago, IL 606371457413908
  26. Vivek Arora, M.D.Gurnee, IL 600311194712638
  27. Ahsan Arozullah, M.D., MPHChicago, IL 606121083719173
  28. Melissa Arredondo, M.D.Berwyn, IL 604021508120981
  29. Susan Caroline Arreola, M.D.Oak Forest, IL 604521770660490
  30. Yasmina Arroyo, M.D.Springfield, IL 627021922459544
  31. Aleena ArshadUrbana, IL 618011053156315
  32. Omair Arshad, DOOak Lawn, IL 604531023703535
  33. Jacqueline Arteaga, MDChicago, IL 606091396922357
  34. Waldo Arteaga, MDChicago, IL 606091568498939
  35. Gary Artinian, MDDes Plaines, IL 600161073511267
  36. Ajay Arumanayagam SelvarajChicago, IL 606161679068019
  37. Marina Arvanitis, M.D.Chicago, IL 606111932373321
  38. Steven ArvanitisMoline, IL 612651205800679
  39. Mary Allison Arwady, MDChicago, IL 606031548421597
  40. Badri Aryal, M.DChicago, IL 606121518606979
  41. Barun Aryal, MDChicago, IL 606081932838612
  42. Edgar Arza Basualdo, MDChicago, IL 606121871311688
  43. Ricardo Arze, M.D.Berwyn, IL 604021083741110
  44. Muhammad AsadDecatur, IL 625261245882448
  45. Teresa Asam-Jensen, M.D.Des Plaines, IL 600181487851184
  46. Eswara Asapu, MDUrbana, IL 618011063646891
  47. Armenak Asatryan, M.D.Libertyville, IL 600481811040306
  48. Edgar Asebey, M.D.Chicago, IL 606081255359097
  49. Kalkidan Aseged, MDChicago, IL 606371992494512
  50. Iriagbonse Asemota, MDChicago, IL 606121629621461

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.