NPPES file of Aug 9, 2026

Occupational Therapy Assistant in Wisconsin

1,460 NPPES records list occupational therapy assistant with a practice address in Wisconsin, 25 per 100,000 residents, the 2nd highest rate of 51. Milwaukee and Madison have the most; each record links to the provider's NPI and the Wisconsin license search. Page 29 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).

Milwaukee has the most, 101

  1. Milwaukee101
  2. Madison78
  3. Appleton61
  4. Green Bay39
  5. Fitchburg38

Occupational Therapy Assistant records in Wisconsin

  1. Sara Willcome, COTAAppleton, WI 549111760922983
  2. Cindy WilliamsJanesville, WI 535461063841781
  3. Gina Williams, COTAMilwaukee, WI 532021518195726
  4. Kayla Williams, C.O.T.A.La Crosse, WI 546011033668132
  5. Terri Williams, COTALa Crosse, WI 546011699936427
  6. Cathy Williamson, OT ASSISTANTLake Geneva, WI 531471285837252
  7. Morgan Williamson, COTAPrescott, WI 540211124528393
  8. Tracy Willms, COTAKenosha, WI 531421295948438
  9. Amanda Wilmot, C.O.T.A.Chippewa Falls, WI 547291174539951
  10. Abby Wilson, COTAWest Bend, WI 530951083195978
  11. Kirsten Wilson, COTAWeyauwega, WI 549831154533909
  12. Tanya Wiltzius, COTAManitowoc, WI 542201417128786
  13. Judy WinklerAppleton, WI 549151205094513
  14. Kim Winkler, C.O.T.A.Manitowoc, WI 542291477281285
  15. Katie WiseMondovi, WI 547551093116188
  16. Dianna Witt, COTAPort Edwards, WI 544691548440142
  17. Patti WittFond Du Lac, WI 549351053731398
  18. Stephanie WittOak Creek, WI 531541942862073
  19. Thomasina WitthuhnAppleton, WI 549151215068333
  20. Kimberly Wittmann, COTAJefferson, WI 535491871839209
  21. Julia Wittmershaus, COTASussex, WI 530891982471900
  22. Jean Wobig, COTAWausau, WI 544031912284456
  23. Laura Wolf, COTAShell Lake, WI 548711952506933
  24. Ashley Wolfe, COTA/LMilwaukee, WI 532031386064871
  25. Kayla Wolfe, COTAGreenfield, WI 532201497095319
  26. Katelynn Wolfgram, COTAMilwaukee, WI 532211356856736
  27. Kristin Woller, COTAMerrill, WI 544521700222452
  28. Robin Woller, C.O.T.A.Milwaukee, WI 532231104091115
  29. Annika WontorRichland Center, WI 535811194191189
  30. Amber Wood, COTASpooner, WI 548011124807755
  31. Renata WoodRiver Falls, WI 540221174336291
  32. Rochelle WoodLadysmith, WI 548481487390647
  33. Samantha Wood, COTA/LGreen Bay, WI 543031831742386
  34. Crystal Word, COTAMilwaukee, WI 532091013351956
  35. Bethany Wright, COTAWeston, WI 544761104217041
  36. Renee Wuensch, COTAMilwaukee, WI 532271487922613
  37. Heather Wuolle, COTAViroqua, WI 546651376520072
  38. Jenna WyssElroy, WI 539291770098352
  39. Marina XiongMilwaukee, WI 532221194532705
  40. Reagan XiongHolmen, WI 546361588305577
  41. Zuriel Yancey, COTAWaunakee, WI 535971285586263
  42. Khou YangMilwaukee, WI 532081629551874
  43. See YangFond Du Lac, WI 549351538719398
  44. Dawn Yankunas, COTAGreenfield, WI 532281578999843
  45. D'Shon YarbroughMenomonee Falls, WI 530511861954158
  46. Katy Yessa, C.O.T.A.Wausau, WI 544011093866964
  47. Rachel Young, COTAJuneau, WI 530391306153739
  48. Andrea Yttri, COTAViroqua, WI 546651447648688
  49. Sharon ZachWaterford, WI 531851306534102
  50. Christine Zalusky, COTARice Lake, WI 548681871709592

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

Wisconsin ranks 2 of 51 per resident

  1. Arkansas35
  2. Wisconsin25
  3. Oklahoma23
  4. Delaware23
  5. 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. Wisconsin0.1%
  2. United States0.1%

Occupational Therapy Assistant records in Wisconsin, measured

  • In a Medicare file2 of 1,460 · 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file3 · 0.2% here, 0.1% nationally
  • Not updated in five years or more1,140 · 78.1% 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

1,460 NPPES records list occupational therapy assistant (224Z00000X) as their primary taxonomy with a practice address in Wisconsin: 25 per 100,000 residents against 12 nationally (50 states and D.C.). Milwaukee has 101 of them (7%).

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. Illinois1,498
  2. North Carolina1,357
  3. Indiana1,091
  4. Virginia1,086

States with a similar rate per 100,000

  1. Oklahoma23.4
  2. Delaware23.0
  3. Ohio20.5
  4. Kansas20.0

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.