NPPES file of Aug 9, 2026

Specialist in Illinois

1,154 NPPES records list specialist with a practice address in Illinois, 9 per 100,000 residents, the 35th highest rate of 51. Chicago and Evanston have the most; each record links to the provider's NPI and the Illinois license search. Page 10 of 24.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · 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, 231

  1. Chicago231
  2. Evanston36
  3. Rockford21
  4. Freeport20
  5. Naperville20

Specialist records in Illinois

  1. William Hughes, ATCNaperville, IL 605401255479846
  2. Kathleen Humphreys, DTPrinceville, IL 615591083855290
  3. Alfred Huyoung, MDRockford, IL 611071306849989
  4. Juan Ibarra, MDFreeport, IL 610321891817565
  5. Gamal Ibrahim, PHYSICAL THERAPISTChicago, IL 606291922270099
  6. Zeba Iqbal, M.D.Hines, IL 601411063593895
  7. Nenita Irabagon, M.D.Chicago, IL 606381104885466
  8. Amie IrvingGroveland, IL 615351932359916
  9. Nicole IsenhartBelleville, IL 622201689375164
  10. Stacey Isrow, BS/PSYC, DTCrystal Lake, IL 600141649366063
  11. Robert Jackson, MDEvanston, IL 602021831295344
  12. Paulina JacobsNaperville, IL 605401205123304
  13. Ellen Jacobsen, M.D.Urbana, IL 618011821092891
  14. Kimberly JakobChicago, IL 606141750606596
  15. Samantha JamesLyons, IL 605341649618448
  16. Megan Janik, OTR/LCrystal Lake, IL 600141194097725
  17. Jane Jarosz, M.S., OTR/LPlainfield, IL 605441073791133
  18. Roukan Jazayerli, M.D.Orland Park, IL 604671497804454
  19. Laurie JeansBloomington, IL 617041144492257
  20. Sandeep Jejurikar, MDHoffman Estates, IL 601941871632018
  21. Joseph Jelinek, OTR/LHines, IL 604411710068580
  22. Jennifer Jenkins, CMFWestville, IL 618831649658667
  23. Stephen Jennison, M.D.Springfield, IL 627011043391766
  24. Bailan Jin, D.N.Chicago, IL 606161669546685
  25. Daniel Joda, PT. MPTPalos Heights, IL 604631811299902
  26. Jean JohnsonFreeport, IL 610321184972630
  27. Jill Johnson, LMTAmboy, IL 613101275770992
  28. Wendell JohnsonChicago, IL 606401558449876
  29. Terri JohnstonRockford, IL 611141225105521
  30. Melissa Jones, ATCLisle, IL 605321013986454
  31. Paul JonesChicago, IL 606151639200884
  32. Rayna Joseph, M.D.Chicago, IL 606101326058736
  33. James Jupa, M.D.,Lake Forest, IL 600451437162278
  34. Tabatha JusticeSterling, IL 610811023560174
  35. Katarzyna Kabat, RDHWest Dundee, IL 601181730417775
  36. Justine KaczmarekPlainfield, IL 605861568789899
  37. Kenneth Kaczmarek, PBT-ASCPSpring Grove, IL 600811033368493
  38. Roger Kalisiak, MS,ATCHoffman Estates, IL 601951396711370
  39. Beth Kamensky, OT, CHTBarrington, IL 600101306058623
  40. James KaneHoffman Estates, IL 601921528028180
  41. Jonae KatesMatteson, IL 604431114568219
  42. Katherine Katsoyannis, M.D.Park Ridge, IL 600681023123015
  43. Leila Kayser, LMTRockford, IL 611071699952812
  44. James Kearns, D.N.Woodstock, IL 600981568531663
  45. Barbara Keck, D.N.Brookfield, IL 605131649398280
  46. Adam Kehoe, M.A. ED., ATCLincolnshire, IL 600691750350310
  47. Valeria Kehoe, IBCLC, RLC, PMH-CRockford, IL 611071053615054
  48. Doris KellerSpringfield, IL 627041659554707
  49. Kent Kelley, M.D.Chicago, IL 606141184774838
  50. Darlene Kelly, CTRSChicago, IL 607071508156381

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 35 of 51 per resident

  1. Wyoming9
  2. Nebraska9
  3. Virginia9
  4. Illinois9
  5. Idaho9
  6. Vermont9
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

19.1% of these records appear in a Medicare file, against 17.0% 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. Illinois19.1%
  2. United States17.0%

Specialist records in Illinois, measured

  • In a Medicare file220 of 1,154 · 19.1% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file127 · 11.0% here, 11.1% nationally
  • Not updated in five years or more968 · 83.9% here, 77.3% nationally
  • Median graduation year1988 · the 127 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,154 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in Illinois: 9 per 100,000 residents against 18 nationally (50 states and D.C.). Chicago has 231 of them (20%).

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. Colorado1,105
  2. Massachusetts1,096
  3. Oregon1,085
  4. New Hampshire1,010

States with a similar rate per 100,000

  1. Virginia9.2
  2. Nebraska9.3
  3. Idaho9.0
  4. Wyoming9.4

The largest states

  1. New York22,636
  2. California5,749
  3. Florida2,685
  4. Washington2,609
  5. Pennsylvania2,031

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.