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 24 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. Mary RyanCrystal Lake, IL 600141083852164
  2. Molly Ryssman, COTAMount Sterling, IL 623531922328327
  3. Mary Sadler, COTA/LHamilton, IL 623411285281097
  4. Kristen Sako, COTA/LRolling Meadows, IL 600081346136082
  5. Brooke Salahuddin, COTA/LChampaign, IL 618201649975061
  6. Jalyn SalasGeneseo, IL 612541982256301
  7. Kimberly SaldanaChicago, IL 606381902487937
  8. Jennifer Sallade, COTAJoliet, IL 604311144554312
  9. Rick SalladeNormal, IL 617611386388981
  10. Pamela Sallade-BardenshteinBloomington, IL 617051629387188
  11. Kimberly Salmon, COTA/LCentralia, IL 628011669801916
  12. Timothy SametEdwardsville, IL 620251770157489
  13. Tori SampsonStreator, IL 613641700477205
  14. Jessica SamsGillespie, IL 620331386053098
  15. Belinda Sanchez, COTA/LHomer Glen, IL 604911134748809
  16. Anna Sanders, COTA/LDecatur, IL 625261326302654
  17. Laura SandersCentralia, IL 628011134904352
  18. Ivette Sandoval, COTAChicago, IL 606141700083839
  19. Mary Sandrin, COTAEdwardsville, IL 620251235485764
  20. Courtnee SansoneBrighton, IL 620121053075192
  21. Kaylin SansoneGodfrey, IL 620351619444239
  22. Jane Santos, COTA/LChicago, IL 606421982971792
  23. Yanelis Sardinas Morales, COTAGlenview, IL 600261790241826
  24. Shannan Sarpy, COTA/LBlue Island, IL 604061841841178
  25. Jessica Saucillo, COTA/LNorthlake, IL 601641770848699
  26. Julie SauerNorth Riverside, IL 605461568630937
  27. Lisa Scanzoni, COTA/LStaunton, IL 620881528401460
  28. Lisa Scarsella, OTAGlenview, IL 600261851057582
  29. Therese SchauerCrystal Lake, IL 600141194987933
  30. Laura SchickChicago, IL 606311831501162
  31. Teran SchlechteCarlinville, IL 626261245803428
  32. Jamie Schmidt, COTA/LTinley Park, IL 604771558639674
  33. Courtney Schmit, COTADunlap, IL 615251932439296
  34. Angela Schneider, C.O.T.A.Springfield, IL 627041457530396
  35. Rebecca SchneiderGrant Park, IL 609401144733098
  36. Kendra Schroder, COTA/LChicago, IL 606111912348251
  37. Sally Schultz, COTAOrland Park, IL 604671326256777
  38. Amanda Schwarz, COTAEvanston, IL 602011710807649
  39. Brittany ScottLemont, IL 604391821601303
  40. Cassandra Seals, COTA/LOak Forest, IL 604521447580501
  41. Marielle Sebela, COTA/LLisle, IL 605321902157753
  42. Elizabeth Sellek, COTAGibson City, IL 609361750595880
  43. Anna SemanyszynSt Charles, IL 601741609507318
  44. Kris Septoski, COTA/LOak Forest, IL 604521174097240
  45. Yhetming SetoSchaumburg, IL 601941821486705
  46. Amanda SettlesStaunton, IL 620881609431949
  47. Lesli Seyfert, COTAPaxton, IL 609571639309354
  48. Suzette Shafer, COTADecatur, IL 625211104133099
  49. Chairo Shaffer, COTA/LEdwardsville, IL 620251619482742
  50. Emily ShafferWhite Heath, IL 618841871977207

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.