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 143 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. Bayan Yazdi, MDOak Lawn, IL 604531235989013
  2. Brian YbarraOak Park, IL 603041396328787
  3. Nathan YeeChicago, IL 606111245081561
  4. Lalitha Yekkirala, M.D.Urbana, IL 618011235240540
  5. Bhaskara Yelamanchili, M.DDanville, IL 618321043325335
  6. Lakshmi Yelamanchili, M.D.Burbank, IL 604591922011154
  7. Joshua YemChicago, IL 606111306647540
  8. Alexander Yerkan, MDChicago, IL 606121174459762
  9. Meera Yerrabolu, M.DDanville, IL 618321154414423
  10. Tad Yetter, M.D.Havana, IL 626441245296979
  11. Mangala Yeturu, M.D.Chicago, IL 606431912010125
  12. Sudhakar Yeturu, M.D.Chicago, IL 606431093828212
  13. Catherine Yi, M.D.Chicago, IL 606111437184082
  14. Solomon Yisak, M.D.Chicago, IL 606161558474684
  15. Rachel Yohannan, M.D.Chicago, IL 606121457582819
  16. Jin Hyung Yoo, M.D.Chicago, IL 606371700149531
  17. Lawrence Yoo, MDSt Charles, IL 601741912167669
  18. John YoonChicago, IL 606371568657823
  19. Peter Yoon, M.D.Deerfield, IL 600151417905944
  20. Michael York, MDHarrisburg, IL 629461730169640
  21. Zita Yorro, MDGurnee, IL 600311477566701
  22. Tian YouChicago, IL 606121306308580
  23. Hafiz Muhammad Waqar Younas, MDChicago, IL 606401952038853
  24. Krista Young, DOBerwyn, IL 604021851853832
  25. Kristine Young, M.D.Barrington, IL 600101114063013
  26. Lauren Young, MD, PHDChicago, IL 606371457844607
  27. Patricia Young, MDWaukegan, IL 600851598736431
  28. Ryan YoungChicago, IL 606371093014144
  29. Sarah Young, MDChicago, IL 606111891283966
  30. Uthman Younis, MDRockford, IL 611071265124283
  31. Caroline YoussefOak Lawn, IL 604531316593569
  32. Mohammed Adnaan Yousuf, MDChicago, IL 606081316781362
  33. Alvin Yu, M.D.Chicago, IL 606121730529397
  34. Eunice Yu, M.D.Oakbrook Terrace, IL 601811356607881
  35. Michael Yu, MDOak Lawn, IL 604531881498087
  36. Minyong Yu, D.O.Park Ridge, IL 600681205223906
  37. William Yu, MDSpringfield, IL 627041003903931
  38. Zoe Yu, M.D.Chicago, IL 606371023396280
  39. Debbie Yu-Tungol, MDHuntley, IL 601421497958912
  40. Leah Yuan, MDChicago, IL 606371205579661
  41. Kerem Yucebas, MD STUDENTChicago, IL 606111447065370
  42. Yeo Yeong Yun, M.D.Berwyn, IL 604021619223187
  43. Karim Yunez, M.D.Lombard, IL 601481972662781
  44. Ahmad Zabad, M.D.Belleville, IL 622261780021774
  45. Sami Zabaneh, M.D.Champaign, IL 618221548279110
  46. John Zaborowski, MDChicago, IL 606181649386335
  47. Barbara Zabska-Szatkowski, MDRiverside, IL 605461740380930
  48. Annette Zacharia, MDChicago, IL 606121093158727
  49. Matthew ZadelPark Ridge, IL 600681750221081
  50. Kainat ZafarUrbana, IL 618011033952494

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.