NPPES file of Aug 9, 2026

Occupational Therapy Assistant in Washington

806 NPPES records list occupational therapy assistant with a practice address in Washington, 10 per 100,000 residents, the 34th highest rate of 51. Seattle and Tacoma have the most; each record links to the provider's NPI and the Washington license search. Page 12 of 17.

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).

Seattle has the most, 64

  1. Seattle64
  2. Tacoma51
  3. Spokane43
  4. Federal Way40
  5. Puyallup33

Occupational Therapy Assistant records in Washington

  1. Joaquin Olivas, COTA/LTacoma, WA 984081093112575
  2. Courtney Oliver, COTA/L, RBT/CBTRochester, WA 985791326510728
  3. Cynthia Olmstead, C.O.T.A.Fife, WA 984241730424847
  4. Timothy OlsonSpokane, WA 992071902254436
  5. Yana Onishchenko, COTA/LUniversity Place, WA 984661053881052
  6. Sierra Ordona, COTA/L, CLTBurien, WA 981661932850146
  7. Jorge OrozcoSnoqualmie, WA 980651902741184
  8. Christine OrtegaTacoma, WA 984051114341344
  9. Jennifer Osborn, OTAPoulsbo, WA 983701639532757
  10. Deana Ostgard, COTA/LEnumclaw, WA 980221407256399
  11. John OvertonLongview, WA 986321427569904
  12. Mariann Oxford, COTAKirkland, WA 980341114363223
  13. Kleinward PabingwitSeattle, WA 981781760948566
  14. Suzanne Padilla, COTAAuburn, WA 980921750029054
  15. Arika PalmerLacey, WA 985161922945286
  16. Robert PalmerEllensburg, WA 989261447443775
  17. Stephanie PalowskiMaple Valley, WA 980381487166237
  18. Sofiya Panasyuk, OTALakewood, WA 984991083506588
  19. Benjamin Paradise, COTA/LToppenish, WA 989481265075972
  20. Kelly Pardi, COTALakewood, WA 984991386440287
  21. Juyeon Park, MSW STUDENTTacoma, WA 984051225658586
  22. Heather ParkerDes Moines, WA 981981972831915
  23. Stephanie Parkerson, COTA/LFederal Way, WA 980031679853519
  24. Emily Parry, COTA/LTacoma, WA 984041982923926
  25. Patricia Patrick, COTARichland, WA 993521881876845
  26. Tobin Patrick, COTADes Moines, WA 981981588401541
  27. Jenny PattyEverett, WA 982031730945577
  28. Lisa PatureauPoulsbo, WA 983701215461025
  29. Jill Paulson, COTA/LFederal Way, WA 980031306112255
  30. Nancy Pawlak, MOT, OTR/LSpokane, WA 992021891752390
  31. Jaycee PayneBellevue, WA 980071306406640
  32. Tamara Paynter, COTATacoma, WA 984031336692482
  33. Roxanne Pearsall, COTA/LSeattle, WA 981041770394264
  34. Joseph Pena, COTARenton, WA 980551497156772
  35. Karl Pereira, COTA/LLongview, WA 986321295994085
  36. Angela PerkinsKent, WA 980311346586872
  37. Kate Perkins, OTABelfair, WA 985281710661046
  38. Judy Petersen, COTASeattle, WA 981341487991311
  39. Melissa PetersonEverett, WA 982011609682475
  40. Crystal Phillips, COTA/LBonney Lake, WA 983911154788420
  41. Linda Phillips, COTAUniversity Place, WA 984661487429965
  42. Mick Phrakonekham, OC60942789Seattle, WA 981091356905038
  43. Hailey PietenburgEnumclaw, WA 980221568069714
  44. Delpha Pike, COTA LLakewood, WA 984991972762904
  45. Timothy PinnellMedical Lake, WA 990221689749277
  46. Ann PitchfordVancouver, WA 986641710351788
  47. Alison Pollard, COTA/LArlington, WA 982231841967874
  48. Ksenia PopovaEverett, WA 982041033656970
  49. Carly Pratt, COTA/LSpokane Valley, WA 992061033586227
  50. Dana Priest, COTAMount Vernon, WA 982731336484674

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

Washington ranks 34 of 51 per resident

  1. Wyoming11
  2. Massachusetts11
  3. Maryland11
  4. Washington10
  5. Oregon9
  6. Michigan9
  7. 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.

0.0% 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. Washington0.0%
  2. United States0.1%

Occupational Therapy Assistant records in Washington, measured

  • In a Medicare file0 of 806 · 0.0% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.1% nationally
  • Not updated in five years or more576 · 71.5% 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

806 NPPES records list occupational therapy assistant (224Z00000X) as their primary taxonomy with a practice address in Washington: 10 per 100,000 residents against 12 nationally (50 states and D.C.). Seattle has 64 of them (8%).

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. South Carolina744
  2. Massachusetts741
  3. Kentucky714
  4. Michigan903

States with a similar rate per 100,000

  1. Maryland10.6
  2. Wyoming11.1
  3. Oregon9.2
  4. Colorado11.7

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.