Registry data as of Aug 27, 2026

Occupational Therapy Assistant in Wisconsin

1,469 NPPES records list occupational therapy assistant with a Wisconsin practice address, 25 per 100,000 residents, 2 of 51 per resident. Milwaukee and Madison have the most; each record links to the provider's NPI and the Wisconsin license search. Page 3 of 30.

CMS NPPES registry, loaded Aug 27, 2026; 2023 Census estimates · NUCC 224Z00000X · method

Milwaukee has the most, 100

Source: CMS NPPES, primary taxonomy 224Z00000X by practice city, loaded Aug 27, 2026.

Occupational Therapy Assistant records in Wisconsin

  1. Sydnee Borelli, COTASpooner, WI 548011659209096
  2. Heidi Borreson, COTALa Crosse, WI 546011558084921
  3. Deborah Borth, COTAMadison, WI 537031356005003
  4. Emily Bourg, COTAMarshfield, WI 544491013252295
  5. Alane Boutelle, COTAVerona, WI 535931821389115
  6. Tammi Boyer, COTAEast Troy, WI 531201811237803
  7. Kathi Boziel, COTAGreenfield, WI 532201063686244
  8. Samantha Braaten, COTAChippewa Falls, WI 547291770828634
  9. Samantha BrabenderSouth Range, WI 548741902349319
  10. Brenda Brandt, COTAAmery, WI 540011669049276
  11. Susan Brandt, OTAMilwaukee, WI 532271093084501
  12. Tracy BrandtFlorence, WI 541211265888135
  13. Amy Brashi, OTAMiddleton, WI 535621366732075
  14. Margaret Bresnahan, COTAWittenberg, WI 544991942794144
  15. Nancy Briamis, COTAMilwaukee, WI 532271639476146
  16. Michelle Brill, COTARichland Center, WI 535811013385335
  17. Patsy BrillaAshland, WI 548061215102801
  18. Abby Bristlin, COTAMenomonie, WI 547511144142910
  19. Kathryn Brodie, COTA/LNew Richmond, WI 540171730605031
  20. Jay BrogelmanCedarburg, WI 530121699968016
  21. Bailey BrokmeierBlack Earth, WI 535151699317495
  22. Molly Brooks, COTAFond Du Lac, WI 549351750594065
  23. Rachel BrooksNeenah, WI 549561376793539
  24. Abigail Brown, COTAMenasha, WI 549521497481998
  25. Amy Brown, COTARacine, WI 534061245457191
  26. Chris Brown, COTAMarshfield, WI 544491275738064
  27. Elizabeth Brown, COTAKenosha, WI 531421710199179
  28. Elizabeth Brown, COTAHammond, WI 540151598278988
  29. Amanda Bruins, COTACrivitz, WI 541141104748094
  30. Amy BrylskiAppleton, WI 549141770850158
  31. Natasha Bryn, COTAEau Claire, WI 547031649417163
  32. Diane Buckley, COTAPrairie Du Sac, WI 535781780735019
  33. Danijela Budesa, COTAMilwaukee, WI 532201710393509
  34. Milijana BudesaSouth Milwaukee, WI 531721538554613
  35. Ronald BudziszewskiMadison, WI 537921801142757
  36. Marisa Buerger, COTAWashburn, WI 548911538609821
  37. Marisa BurkeSauk City, WI 535831922565878
  38. Mallory BurmeisterAltoona, WI 547201427834209
  39. Michael Burns, OTAMadison, WI 537181154767796
  40. Erik Burtraw, COTAWind Lake, WI 531851669874301
  41. Patricia Busch, COTASuring, WI 541741407063712
  42. Sarah Buser, COTAGreen Bay, WI 543041700184272
  43. Amanda Bussan, COTAJuneau, WI 530391063037976
  44. Emily Bussanich, COTABeloit, WI 535111861156499
  45. Amanda Busse, COTAAltoona, WI 547201427262302
  46. Breanne Butler, COTA/LFitchburg, WI 537191982585055
  47. Kayla Buttke, COTABeloit, WI 535111255847075
  48. Cheryl Cade, COTAViroqua, WI 546651306237615
  49. Lynn Caelwaerts, COTAMarinette, WI 541431033291943
  50. Amy Campagna, COTAWatertown, WI 530981356055057

Wisconsin ranks 2 of 51 per resident

  1. Arkansas35
  2. Wisconsin25
  3. Oklahoma24
  4. Delaware23
  5. 50 states and D.C.12

Source: CMS NPPES, primary taxonomy 224Z00000X by practice state, loaded Aug 27, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

The CMS National Plan and Provider Enumeration System currently lists 1,469 Occupational Therapy Assistant providers with a primary practice address in Wisconsin. Each clinician on this roster selected Occupational Therapy Assistant as their primary taxonomy at NPI enrollment, a self-reported classification that is updated whenever the provider files a correction with CMS. The count excludes organizations (group practices, hospitals, clinics operate under separate NPIs) and excludes providers who chose a different primary specialty even if they practice Occupational Therapy Assistant part-time. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

At 1,469 enrolled providers, Occupational Therapy Assistant in Wisconsin is a mid-volume market, that matters for search-radius decisions, because patients in Wisconsin outside the largest metros often need to broaden to adjacent cities to find a local Occupational Therapy Assistant clinician. The directory below is paginated 50 providers at a time (30 pages total) and is sorted alphabetically by last name, so scanning for a specific practice usually goes faster than scrolling; on the provider detail page you'll find the full NPPES record including address, phone, credentials, and any published Medicare Part D prescribing activity for 2024.

Before contacting anyone on this list, verify the practice is still at the address shown, NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data covering Occupational Therapy Assistant providers in Wisconsin, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the Wisconsin medical board, and, where relevant, the ABMS, AOA, or the specialty's primary certifying body before making any clinical decision. Nothing on this page substitutes for a conversation with a licensed clinician.

States with a similar number

  1. Illinois1,517
  2. North Carolina1,374
  3. Indiana1,096
  4. Virginia1,091

States with a similar rate per 100,000

  1. Oklahoma23.7
  2. Delaware23.1
  3. Ohio20.8
  4. Kansas20.2

The largest states

  1. Texas4,298
  2. Florida3,906
  3. New York2,810
  4. Ohio2,446
  5. Pennsylvania2,163

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.