Registry data as of Aug 27, 2026

Occupational Therapy Assistant in Oregon

391 NPPES records list occupational therapy assistant with a Oregon practice address, 9 per 100,000 residents, 35 of 51 per resident. Milwaukie and Portland have the most; each record links to the provider's NPI and the Oregon license search. Page 3 of 8.

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

Milwaukie has the most, 107

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

Occupational Therapy Assistant records in Oregon

  1. Mayanna Dettwyler, COTA/LMilwaukie, OR 972221457831455
  2. Vince Diamzon, COTA/LBend, OR 977021851859748
  3. Denise Dorgan-Miller, C.O.T.A./L.Portland, OR 972131801431218
  4. Stacy Doty, COTA/LWarrenton, OR 971461871915793
  5. Mary DrayPortland, OR 972331215486717
  6. Tasja Dubenko, COTA/LPortland, OR 972171801376876
  7. Marcie Dudek, COTAWilsonville, OR 970701700229440
  8. Russell Duffy, COTAAlbany, OR 973211548683105
  9. Gina Dugan, COTAPortland, OR 972221841612140
  10. Stacey Dykes, OTAMilwaukie, OR 972221750547139
  11. Andrea EarnestWilsonville, OR 970701124562822
  12. Brandon Edwards, PA-CKlamath Falls, OR 976011700354792
  13. Tabitha EdwardsAlbany, OR 973221447722038
  14. Amanda Eggers, COTAPendleton, OR 978011982263273
  15. Margareth EliacinMedford, OR 975041710294731
  16. Suzanna Engber, COTAOregon City, OR 970451720776651
  17. Kiana Eoas, COTA/LSalem, OR 973021669934790
  18. Alexa Erwin, COTAKlamath Falls, OR 976011285059139
  19. Ana EspinozaMilwaukie, OR 972221952115479
  20. Edelina Espiritu, COTACanby, OR 970131679094247
  21. Darrin EstepPortland, OR 972321831510288
  22. Andrea Falconi Vernuccio, COTA/LMilwaukie, OR 972221154150670
  23. Amanda FarrellOregon City, OR 970451134525603
  24. Kristin FaulknerPortland, OR 972331316398324
  25. John Ferreras, COTAMilwaukie, OR 972221447813761
  26. Joelle Fieland, COTA/LTigard, OR 972241447916127
  27. Sarah Fischer, COTASalem, OR 973171912453952
  28. Amie FlanaganSpringfield, OR 974771174079396
  29. Rebecca Flowers, COTA/LWilsonville, OR 970701447637525
  30. Tabita FoghisPortland, OR 972151124612833
  31. Nancy Forrest, COTASublimity, OR 973851093969545
  32. Kay Foust, COTA/LPortland, OR 972391174988612
  33. Jessica Fouts, COTASalem, OR 973171073222345
  34. Andrea Frederick, COTA/LSalem, OR 973021689263329
  35. Abigail FrickeMilwaukie, OR 972221699476515
  36. Gina FryGrants Pass, OR 975261821455023
  37. Rebecca FryMilwaukie, OR 972221164975397
  38. Kristel Gabriel, COTASalem, OR 973171215327556
  39. Molly Gagnon, COTAPortland, OR 972221912365966
  40. Nicole GalassoWilsonville, OR 970701932642220
  41. Jennifer Gallusser, COTAGresham, OR 970301750573861
  42. Berta Garcia, COTAMilwaukie, OR 972221801071568
  43. Sabrina Garcia, COTA/LBeaverton, OR 970051699212001
  44. Beverly GarrettMedford, OR 975041578203493
  45. Kayela Gatchet, OTALebanon, OR 973551528589942
  46. Rebecca Gauthier, CERTIFIED OCCUPATIONMilwaukie, OR 972221902004468
  47. Sylvia Gerard, COTA/LTillamook, OR 971411053718809
  48. Angie Gibbens, COJAILMilwaukie, OR 972221932257391
  49. Brendin GilliesClackamas, OR 970151699324475
  50. Nathan Gima, COTAPortland, OR 972391265815906

Oregon ranks 35 of 51 per resident

  1. Massachusetts11
  2. Maryland11
  3. Washington10
  4. Oregon9
  5. Michigan9
  6. Idaho8
  7. 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 391 Occupational Therapy Assistant providers with a primary practice address in Oregon. 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 391 enrolled providers, Occupational Therapy Assistant in Oregon is a limited-supply market, that matters for search-radius decisions, because patients in Oregon 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 (8 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 Oregon, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the Oregon 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. Mississippi357
  2. Minnesota429
  3. West Virginia349
  4. Connecticut456

States with a similar rate per 100,000

  1. Michigan8.9
  2. Idaho8.4
  3. Iowa8.4
  4. Vermont8.3

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.