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 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).

Milwaukee has the most, 101

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

Occupational Therapy Assistant records in Wisconsin

  1. Madison UlrichFitchburg, WI 537191861387185
  2. Rebekah Ungemach, COTAKenosha, WI 531441346964194
  3. Jennifer Unger, COTAMenomonee Falls, WI 530511265904205
  4. Tami Unseth, COTA/LAshland, WI 548061962829333
  5. Marsha UrbaniakMadison, WI 537031891904710
  6. Eleonor VakherGrafton, WI 530241902265820
  7. Megan ValleyOconto, WI 541531316050305
  8. Ashley Van Dyn Hoven, COTADe Pere, WI 541151801221163
  9. Rebecca Van Grinsven, COTAMenomonee Falls, WI 530511154101947
  10. Daryl Van NulandAppleton, WI 549141982425815
  11. Lisa Van Schyndel, COTAAppleton, WI 549141568508935
  12. Karissa Vance, COTAStevens Point, WI 544811669934956
  13. Angela Vancleve, COTAOconto Falls, WI 541541861666588
  14. Robyn Vande Berg, COTA/LKenosha, WI 531401992998132
  15. Angela Vandenberg, COTAManitowoc, WI 542201760766125
  16. Nicole Vandenberg, C.O.T.ANew London, WI 549611790026961
  17. Mitchell VandenboogardDe Pere, WI 541151992274211
  18. Rose VandenzenAppleton, WI 549111124152376
  19. Kim Vander Galien, COTABeaver Dam, WI 539161699948232
  20. Yvonne Vander Heiden, COTAGreen Bay, WI 543041316316730
  21. Heather Vandoorn, COTALadysmith, WI 548481619162377
  22. Nancy VangWausau, WI 544011780412031
  23. Erin Vanguilder, COTASpooner, WI 548011558838623
  24. Michele VanschaickBrookfield, WI 530451538381561
  25. Sharon Vanstiphout, COTAAppleton, WI 549141740461540
  26. Kathie Venable, COTAWausau, WI 544031619102977
  27. Katherine Verbauwhede, COTAGreenfield, WI 532201154791747
  28. Ashley VerbickFitchburg, WI 537111821402835
  29. Mackinzie Verdegan, COTABloomer, WI 547241326713694
  30. Becky VerfuerthKenosha, WI 531401740794775
  31. Carissa VerhasseltShawano, WI 541661881162568
  32. Alyssa Verne, COTABrookfield, WI 530451447724190
  33. Lisa VickMadison, WI 537921033004718
  34. Golda VictorKenosha, WI 531431053254318
  35. Linda Vielhuber, COTALa Crosse, WI 546011083690556
  36. Jeremy VierckHolmen, WI 546361851671432
  37. Chad Visintin, COTAMilwaukee, WI 532191639406960
  38. Cynthia Vittone, COTAPark Falls, WI 545521528225992
  39. Amy Vlosak, COTAAppleton, WI 549141386975381
  40. Sarah VoelzBaraboo, WI 539131841154580
  41. Hanh Vogds, COTAFond Du Lac, WI 549351659733889
  42. Dana Von Ruden, COTALa Crosse, WI 546011447515655
  43. Lisa Vorwerk, COTAWest Bend, WI 530951669598009
  44. Lisa Wachowiak, COTASheboygan, WI 530811982877346
  45. Kristy Wagner, COTABerlin, WI 549231750673513
  46. Mary Wagner, COTAKenosha, WI 531401033842075
  47. Sandra Waldvogel, COTAMount Pleasant, WI 534061558631911
  48. Amanda Walesh, COTA, CLTSheboygan, WI 530831235653163
  49. Jodi WalkerMilwaukee, WI 532021518377506
  50. Lisa Walker, COTAAppleton, WI 549111922268945

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.