NPPES file of Aug 9, 2026

Emergency Medicine Physician in Illinois

3,291 NPPES records list emergency medicine physician with a practice address in Illinois, 26 per 100,000 residents, the 8th highest rate of 51. Chicago and Oak Lawn have the most; each record links to the provider's NPI and the Illinois license search. Page 64 of 66.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207P00000X · 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, 1,310

  1. Chicago1,310
  2. Oak Lawn163
  3. Peoria138
  4. Springfield126
  5. Evanston98

Emergency Medicine Physician records in Illinois

  1. Jack Whitney, MDHighland Park, IL 600351780750216
  2. Steven Whitt, MDChicago, IL 606121437644069
  3. Rachel WhittakerChicago, IL 606371043956808
  4. Sarah Whyte, DONaperville, IL 605401578793170
  5. Aaron Wibberley, MDChicago, IL 606111780077388
  6. Thomas Widell, M.D.Chicago, IL 606081932109188
  7. Mark Wiechert, M.D.Galesburg, IL 614011063513893
  8. Ronald Wiechert, MD, PHDGalesburg, IL 614011811939234
  9. Herbert WigderPark Ridge, IL 600681700955168
  10. Dionte WigginsMattoon, IL 619381316392889
  11. Bryan WijasChicago, IL 606311528622297
  12. Nicholas Wilczynski, D.O.Rock Island, IL 612011124405972
  13. Kenneth Will, M.D.Chicago, IL 606121134357767
  14. Andrew Williams, M.D.Oak Park, IL 603021275988156
  15. Chloe WilliamsOak Lawn, IL 604531881334589
  16. Christy Williams, MDLake Forest, IL 600451700406352
  17. Cody Williams, MDChicago, IL 606081326780909
  18. Daniel WilliamsOlympia Fields, IL 604611790956779
  19. David Williams, M.D.Chicago, IL 606151356325328
  20. Deandre Williams, MDMaywood, IL 601531457312373
  21. Diana Williams, M.D.Berwyn, IL 604021508881905
  22. Earl Williams, MDCrystal Lake, IL 600141912561077
  23. John WilliamsChicago, IL 606121679672653
  24. Kyle Williams, MDChicago, IL 606111760060669
  25. Nikita WilliamsChicago, IL 606121528527306
  26. Phillip WilliamsMaywood, IL 601531467032698
  27. Sean Williams, M.D.Chicago, IL 606341255712626
  28. Sydni WilliamsChicago, IL 606371295494649
  29. Timothy Williams, DOLawrenceville, IL 624391194723247
  30. Trenika Williams, MD, MSChicago, IL 606121083295497
  31. Trey Williams, MDChicago, IL 606371487302014
  32. Margaret Williamson, MDOak Lawn, IL 604531154514867
  33. Sunita Williamson, M.D.Buffalo Grove, IL 600891275550865
  34. Anna WillisChicago, IL 606371740121029
  35. Paula Willoughby Dejesus, DOChicago, IL 606121598971269
  36. Adrienne Wilson, M.D.Chicago, IL 606121902052491
  37. Carrie Wilson, MDChicago, IL 606491639287766
  38. Daryl Wilson, M.D.Addison, IL 601011346309150
  39. Duncan WilsonChicago, IL 606111356769186
  40. Jared Wilson, DOPeoria, IL 616371992490924
  41. Richard Wilson, D.O.Orland Park, IL 604621508867144
  42. Robert Wilson, MDPeoria, IL 616361174107437
  43. Ashlea Winfield-Dial, M.D.Chicago, IL 606121861874265
  44. Elisa Wing, M.D.Oak Lawn, IL 604531477904936
  45. Sara Winstanley, M.D.Waukegan, IL 600851154412021
  46. Earl Wipfler, M.D.Peoria, IL 616371639284995
  47. Brandon Wisinski, D.O., M.B.A., M.S.Olympia Fields, IL 604611548689284
  48. Kary Wisniewski, M.D.Naperville, IL 605401396804175
  49. Kristopher Wnek, M.D.Chicago, IL 606121205192416
  50. Mark Wojdyla, MDSpringfield, IL 627021902335789

Source: CMS NPPES, primary taxonomy 207P00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 8 of 51 per resident

  1. Vermont30
  2. Pennsylvania30
  3. West Virginia28
  4. Illinois26
  5. Massachusetts26
  6. Hawaii26
  7. 50 states and D.C.21

Source: CMS NPPES, primary taxonomy 207P00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.2% of these records appear in a Medicare file, against 81.5% 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. Illinois80.2%
  2. United States81.5%

Emergency Medicine Physician records in Illinois, measured

  • In a Medicare file2,638 of 3,291 · 80.2% here, 81.5% nationally
  • In the CMS Doctors and Clinicians file1,867 · 56.7% here, 58.7% nationally
  • Not updated in five years or more1,549 · 47.1% here, 54.8% nationally
  • Median graduation year2012 · the 1,867 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207P00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,291 NPPES records list emergency medicine physician (207P00000X) as their primary taxonomy with a practice address in Illinois: 26 per 100,000 residents against 21 nationally (50 states and D.C.). Chicago has 1,310 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. Michigan3,083
  2. Ohio3,002
  3. Pennsylvania3,911
  4. Florida4,034

States with a similar rate per 100,000

  1. Massachusetts26.1
  2. Hawaii25.8
  3. New York25.7
  4. Oregon25.5

The largest states

  1. California7,751
  2. New York5,025
  3. Texas4,885
  4. Florida4,034
  5. Pennsylvania3,911

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.