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 67 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. Catherine Koop, M.D.Oak Park, IL 603041851358972
  2. James Koop, M.D.Melrose Park, IL 601601255420451
  3. Jeffrey Kopin, M.D.Chicago, IL 606031093754970
  4. Tibor Kopjas, M.D.Maryville, IL 620621952332918
  5. Allan Korn, M.D.Deerfield, IL 600151952566119
  6. Radhika Kosaraju, MDRockford, IL 611041114945144
  7. Oommen Koshy, MDWheaton, IL 601891932533874
  8. Megan KosirogGlenview, IL 600261528599560
  9. Anna Kostevich, MDChicago, IL 606081518609049
  10. Srinivas Kota, MDBolingbrook, IL 604901659481562
  11. Anup Kotadia, MDPeoria, IL 616361134708449
  12. Katherine Kotcherian, MDArlington Heights, IL 600041740215177
  13. Tulsi Kotecha, M.D.Chicago, IL 606221447659800
  14. Prasanth KothaChicago, IL 606111538919576
  15. Shawn Kothari, MDChicago, IL 606371457709404
  16. Krishna Chaitanya Kottapalli, MDMelrose Park, IL 601601952678286
  17. Madhavi Kottapalli, M.DHines, IL 601411336247758
  18. Carol Kotzan, M.D.Crystal Lake, IL 600141710950100
  19. Sunita KoulNaperville, IL 605401003127895
  20. Thomas Kouri, M.D.Peoria, IL 616141568412773
  21. Regina Kovach, M.D.Springfield, IL 627021164407169
  22. Vladimir Koveshnikov, MDChicago, IL 606081447146907
  23. Pranitha KovuriPeoria, IL 616361205489135
  24. Joseph Kowalczyk, MDOak Lawn, IL 604531831166255
  25. Danuta Kowalski, M.D.Chicago, IL 606181114947926
  26. David Kowalski, M.D.Effingham, IL 624011538194600
  27. Komal Koya, D.OHinsdale, IL 605211932542602
  28. Samuel Krabbenhoft, MD, PHDChicago, IL 606111033979638
  29. Richard Kraines, MDHighland Park, IL 600351669545364
  30. Adriana Kraljevic, DOEvanston, IL 602011811829880
  31. David Kraman, MDElmhurst, IL 601261497851570
  32. Jason Kramer, M.D.Gurnee, IL 600311093746927
  33. Anne Krantz, M.D.Chicago, IL 606121023025681
  34. Fiorella Krapp Lopez, M.D.Chicago, IL 606111023305398
  35. Andrea Krasinski, MDLa Grange, IL 605251194874248
  36. Alicja Kraska-Cwikla, M.D.Orland Park, IL 604621093802712
  37. Ana Kraus, M.D.Chicago, IL 606121649465824
  38. Karolina Krawczyk, MDEvanston, IL 602011760069421
  39. Jeffry Kreamer, D.O.Long Grove, IL 600471225084916
  40. Christian KreigerPark Ridge, IL 600681013857119
  41. Diana Kreppel, M.D.Riverside, IL 605461699263632
  42. Matthew Kresca, MDChampaign, IL 618221770078743
  43. Meena Krishna, M.DHoffman Estates, IL 601691215150479
  44. Pallavi Krishna Rao, MDChicago, IL 606111083473326
  45. Venkatesan KrishnamoorthiChicago, IL 606371669679437
  46. Kuttoppilly Krishnankutty, MDElk Grove, IL 600071417016874
  47. Sanja Krnic-Barrie, MDBay Pines, IL 337441033294186
  48. Andrew Krock, M.D.Rolling Meadows, IL 600081881631919
  49. Kenneth Krock, MDCanton, IL 615201699883868
  50. Elliott Kroger, MDWaukegan, IL 600851427087063

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.