NPPES file of Aug 9, 2026

Occupational Therapy Assistant in Illinois

1,498 NPPES records list occupational therapy assistant with a practice address in Illinois, 12 per 100,000 residents, the 27th highest rate of 51. Chicago and Glenview have the most; each record links to the provider's NPI and the Illinois license search. Page 27 of 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 224Z00000X · 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, 156

  1. Chicago156
  2. Glenview126
  3. Orland Park43
  4. Springfield33
  5. Peoria30

Occupational Therapy Assistant records in Illinois

  1. Larissa Szurek, COTA/LEvanston, IL 602011992532956
  2. Zoey TackettBloomington, IL 617041841150471
  3. Theresa TamezWarrenville, IL 605551073251906
  4. Chara Marionne TanGlenview, IL 600261053944041
  5. Diane TappeQuincy, IL 623011972839710
  6. Stephanie TarabaOak Lawn, IL 604531558700682
  7. Jadwiga Tarczynski, COTAWheeling, IL 600901336417617
  8. Ashley TavennerKankakee, IL 609011609507664
  9. Ann Taylor, OTANew Lenox, IL 604511366568669
  10. Natasha TerwilligerWyoming, IL 614911649865627
  11. Jorly ThariathMount Prospect, IL 600561043917727
  12. Summer TharpPeoria, IL 616031316704604
  13. Lisa Then, OTAFreeport, IL 610321629249875
  14. Kimberly Thiel, COTAGlenview, IL 600261538826839
  15. Renee Thieman, COTAGlenview, IL 600261679747836
  16. Alicia ThomasLa Grange, IL 605251750766010
  17. Anthony ThomasWheaton, IL 601871619441441
  18. Bindu Thomas, COTABartlett, IL 601031437824471
  19. Veda ThomasWarrenville, IL 605551396343851
  20. Donisha ThompsonGranite City, IL 620401568044741
  21. Sara Thompson, COTA/LSpringfield, IL 627111750856126
  22. Trevor Thompson, COTAOttawa, IL 613501881161719
  23. Linda TibbsMason City, IL 626641013268192
  24. Rosemary Ticer, COTA/LCarbondale, IL 629011770837122
  25. Sheryl TieriPontiac, IL 617641487048096
  26. Mark TillmanOak Brook, IL 605231265811301
  27. Julie Tinnon, COTA/LSouth Roxana, IL 620871083975155
  28. Ashley Tintera, COTA/LArlington Heights, IL 600041114655255
  29. Edward TiongsonChicago, IL 606591164896353
  30. Karla Mae Tipay, COTA/LChicago, IL 606141962361089
  31. Michelle Tischhauser, COTAGlenview, IL 600261942639828
  32. Sheila TitoSt Charles, IL 601741881276764
  33. Michael Todd, COTA/LKankakee, IL 609011003277757
  34. Rachelle TolentinoStreamwood, IL 601071285052886
  35. Kyla TolesProspect Heights, IL 600701770215725
  36. Larry Toms, COTAMarion, IL 629591386806016
  37. Rosalyn Toombs, COTA/LEast Peoria, IL 616111538624077
  38. Lorenza Torres, COTADanville, IL 618321972086502
  39. Sharon Tortal, COTANaperville, IL 605631063927168
  40. Shannon Tournier, COTA/LAlton, IL 620021205155793
  41. Bri Tracy, COTA/LRushville, IL 626811891920104
  42. Christie Trainor, COTA LAddison, IL 601011215151980
  43. Angela Trakas, COTA/LLibertyville, IL 600481386890184
  44. Elizabeth TraskellGlenview, IL 600261558631788
  45. Karen Tredinnick, COTAWheaton, IL 601891063664738
  46. Stephanie Tressel, OTR/LElizabeth, IL 610281043048804
  47. Sara Trimble, COTA/LRushville, IL 626811356750855
  48. Janice TrincoGlenview, IL 600261316328917
  49. Kathryn TritleyLincolnwood, IL 607121609203181
  50. River TuasonSchaumburg, IL 601931508351347

Source: CMS NPPES, primary taxonomy 224Z00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 27 of 51 per resident

  1. North Carolina13
  2. Connecticut12
  3. South Dakota12
  4. Illinois12
  5. Nebraska12
  6. Mississippi12
  7. 50 states and D.C.12

Source: CMS NPPES, primary taxonomy 224Z00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.1% of these records appear in a Medicare file, against 0.1% 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. Illinois0.1%
  2. United States0.1%

Occupational Therapy Assistant records in Illinois, measured

  • In a Medicare file1 of 1,498 · 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file2 · 0.1% here, 0.1% nationally
  • Not updated in five years or more1,131 · 75.5% here, 72.0% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 224Z00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,498 NPPES records list occupational therapy assistant (224Z00000X) as their primary taxonomy with a practice address in Illinois: 12 per 100,000 residents against 12 nationally (50 states and D.C.). Chicago has 156 of them (10%).

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. Wisconsin1,460
  2. North Carolina1,357
  3. California1,869
  4. Indiana1,091

States with a similar rate per 100,000

  1. South Dakota12.0
  2. Nebraska11.9
  3. Mississippi11.9
  4. Colorado11.7

The largest states

  1. Texas4,278
  2. Florida3,825
  3. New York2,732
  4. Ohio2,421
  5. Pennsylvania2,155

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.