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 19 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. Angel Olson, OTAWhitehall, WI 547731700145117
  2. Michelle Olson, COTAManitowoc, WI 542201295765667
  3. Shilea OlsonTwo Rivers, WI 542411679763528
  4. Victoria Olson, COTAHudson, WI 540161316043219
  5. Kari Olstadt, COTAMauston, WI 539481568603280
  6. Chloe OmannMenomonie, WI 547511528898582
  7. Anna Oninski, OTAPeshtigo, WI 541571750697686
  8. Kiara Opps, COTAMequon, WI 530921912386707
  9. Laurie Orr, OTAHillsboro, WI 546341780837716
  10. Debbie Orth, ASSSOCIATE DEGREEMilwaukee, WI 532111932154598
  11. Hope Oshefsky, C.O.T.AWeyauwega, WI 549831457539132
  12. Tammy OskeyDe Pere, WI 541151952248569
  13. Susan Ostern, COTASuperior, WI 548801659645026
  14. Brooke OttLancaster, WI 538131699256925
  15. Jean Ott, COTAColumbus, WI 539251851564264
  16. Jillaine Ott, OTAMadison, WI 537051194237552
  17. Joanne Owen, OTAGreen Bay, WI 543111730451196
  18. Brian Owens, COTA/LFitchburg, WI 537111164136982
  19. Natalie Oxendine-PermanUnion Grove, WI 531821659625648
  20. Tammy Pache, COTAMadison, WI 537041063599132
  21. Shari Pack, COTAGreenfield, WI 532201043636889
  22. Lori Paczkowski, COTAWild Rose, WI 549841992937932
  23. Grace Pagenkopf, COTAEau Claire, WI 547011053291666
  24. Amy Paine, COTAAppleton, WI 549141659648855
  25. Anne ParadyHales Corners, WI 531301245641349
  26. Joellen ParkesBloomer, WI 547241982174124
  27. Haley Pasewald, COTAFall River, WI 539321104311398
  28. Kerry PasewaldColumbus, WI 539251770348856
  29. Heather Passow, COTAGreenfield, WI 532201356515472
  30. Vicky Patten, COTAWest Bend, WI 530901508110420
  31. Xavier Patterson, COTAMuskego, WI 531501619468444
  32. Linda PauleyWest Allis, WI 532141902063712
  33. Heather PaulsonWausau, WI 544031225440993
  34. Brittany PayneWest Salem, WI 546691871911313
  35. Stephanie Pekarske, COTAMadison, WI 537921174928576
  36. Trisha PekrulBrookfield, WI 530451346213592
  37. Jenelle PeloquinBaldwin, WI 540021306203351
  38. Shelly Penn, COTAWatertown, WI 530981942611017
  39. Chantelle Peplinski, COTAMadison, WI 537131902319320
  40. Hailey PerkinsMilwaukee, WI 532141609635556
  41. Gerald Persike, COTAMilwaukee, WI 532211831377365
  42. Susan Perzinski, OTAStevens Point, WI 544811366655086
  43. Holly Pete, C.O.T.A.Glendale, WI 532091679727838
  44. Amy Peters, COTAManitowoc, WI 542201740731082
  45. Kathleen Peters, COTANew London, WI 549611770822413
  46. Cherri PetersonHammond, WI 540151184098477
  47. Christine Peterson, COTASeymour, WI 541651316110562
  48. Marjorie Peterson, COTARice Lake, WI 548681447594932
  49. Reece PetersonNew Richmond, WI 540171629448816
  50. Shelly Peterson, COTAPrairie Du Chien, WI 538211346600889

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.