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 73 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. Deborah Lim, M.D.Highland Park, IL 600351992917967
  2. Janet Corazon Lim, MDGurnee, IL 600311881169761
  3. Katherine Grace Lim, M.D.Chicago, IL 606111447401625
  4. Peter Lim, DOChicago, IL 606301316477995
  5. Regine Marie LimOak Lawn, IL 604531912757071
  6. Roy Lim, MDChicago, IL 606081518549336
  7. Catherine Lin, M.D.Chicago, IL 606231659532877
  8. Jaimie LinChicago, IL 606111114592466
  9. John Lin, M.D.Lake Bluff, IL 600441376566281
  10. Junzhi Lin, M.D.Springfield, IL 627021437564788
  11. Kevin Lin, DOPark Ridge, IL 600681023711066
  12. Kevin Lin, MDChicago, IL 606111477071074
  13. Lin Lin, M.D.Chicago, IL 606071063640217
  14. Long Lin, MDChicago, IL 606121518805795
  15. Min Lin, M.D.Round Lake, IL 600731902861289
  16. Pauline Lin, MDUrbana, IL 618011932859568
  17. Esteban Linarez, M.D.Oak Park, IL 603021740483262
  18. Emmanuel Linchangco, MDAddison, IL 601011922095546
  19. Alexandra Linchevskaya, M.D.Chicago, IL 606451033180351
  20. Jeffrey Lindahl, MDArlington Heights, IL 600041477550887
  21. Larry LindahlPeoria, IL 616031770681629
  22. James Lindbom, MDKewanee, IL 614431740205954
  23. John Lindell, MDPekin, IL 615541548212517
  24. Martin Lindenberger, M.D.Chicago, IL 606291013981463
  25. Jeffrey Linder, MD, MPH, FACPChicago, IL 606111558312363
  26. Emily Lindner, M.D.Chicago, IL 606141023176187
  27. Sophia LingMaywood, IL 601531760321426
  28. Suchit Lingam, M.D.Rockford, IL 611041235143256
  29. Daniel LipaMaywood, IL 601531093516999
  30. Mary Lipa, MDChicago, IL 606111952161796
  31. Evan Lipkis, MDGlenview, IL 600261770560757
  32. Sheree Lipkis, MDGlenview, IL 600261548248438
  33. Sergei Lipov, M.D.Elgin, IL 601231982634127
  34. Stephen Lipschultz, MDWilmette, IL 600911659480739
  35. Brian Lipson, MDNorth Chicago, IL 600641609880327
  36. Kristen Lipstreuer, MDChicago, IL 606111366485740
  37. Robert Lisek, MDRoscoe, IL 610731639187677
  38. Justin List, MDChicago, IL 606571871818195
  39. Daniel Litoff, M.D.Chicago, IL 606421891786372
  40. Neilsen Little, MDChicago, IL 606081952144461
  41. Catherine LiuChicago, IL 606121396533311
  42. Margaret LiuChicago, IL 606121326743485
  43. Yan Liu, MDGalesburg, IL 614011366540684
  44. Yupeng LiuChicago, IL 606111003676313
  45. Chool Liyanapatabendi, MDPark Ridge, IL 600681689976649
  46. Christopher Lizon, MDChicago, IL 606571346092715
  47. Tanesha Lloyd, M.D.Chicago, IL 606141154497857
  48. Charles Lo, MDChicago, IL 606031578635173
  49. Cherie LoChicago, IL 606111447862297
  50. Anne Locatelli, M.D.Chicago, IL 606221326086315

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.