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 6 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. Donna Gaskill, COTA/LSeattle, WA 981681225220171
  2. Mary Gaskins, COTA/LSpokane, WA 992051619137049
  3. Karen George, COTAUniversity Pl, WA 984661457224768
  4. Cynthia Gibson, COTALBremerton, WA 983121396943312
  5. Kim GibsonKent, WA 980321396870812
  6. Lee Gibson, COTA/LSeattle, WA 981331912297722
  7. Sara GilbertPort Orchard, WA 983661346737145
  8. Tammy Gilje, COTA/LAnacortes, WA 982211659088029
  9. Henok Girma, COTATacoma, WA 984061164988937
  10. Whitney GivenRedmond, WA 980521720406499
  11. Ann Glore, COTAFederal Way, WA 980031255543237
  12. Deborah GlowitzSnoqualmie, WA 980651023983871
  13. Kim GongBellingham, WA 982251558885624
  14. Kimberly GonzalesEdmonds, WA 980261649680125
  15. Olesya Gorbachevskaya, COTAKent, WA 980301407240690
  16. Tanya GotayLacey, WA 985161831619634
  17. Joshua Gowan, COTALBremerton, WA 983101346679974
  18. Marissa Graham, COTAVancouver, WA 986841053108266
  19. Rachel Graham, COTA/LBellevue, WA 980071851094924
  20. Erica Gray, COTA/LPort Orchard, WA 983671932788593
  21. Ray GrayTacoma, WA 984441619371218
  22. Teri Greco, COTA/LPuyallup, WA 983721326306614
  23. Anthony Green, COTA/LBellingham, WA 982251114228947
  24. Amber Greenfield, COTA/LSpokane, WA 992031861123648
  25. Mark Greer, OC00001273Federal Way, WA 980031144509977
  26. Hannah GroutSeattle, WA 981221811532948
  27. Taylor GudaTukwila, WA 981681003696915
  28. Helen GuentherFederal Way, WA 980031609121532
  29. Vicki HagenToppenish, WA 989481073338802
  30. Andria Hainey, COTAAberdeen, WA 985201902681802
  31. Marcia HaldaneArlington, WA 982231396080149
  32. Anthony Hale, OTR/LBellevue, WA 980061699336537
  33. Patricia HalgrenBainbridge Island, WA 981101174720239
  34. Zachary Hamilton, COTA/LAuburn, WA 980021558758045
  35. Candace HammerSnohomish, WA 982901013631258
  36. Amber Hamusek, COTA/LVancouver, WA 986831639756265
  37. Elizabeth HansonBellingham, WA 982251154562411
  38. Janet HansonMontesano, WA 985631124493739
  39. Thomas Harris, COTA/LLakewood, WA 984991245949403
  40. Leslie HartellMaple Valley, WA 980381811398704
  41. Tammi Haseltine, COTALynnwood, WA 980361013466473
  42. Jackalyn Hattori, COTAMaple Valley, WA 980381568708691
  43. Sandra Haun, COTARichland, WA 993521538523832
  44. Patricia Hauver, O.T.A.L.Prosser, WA 993501336266295
  45. Nicole HawkinsSeattle, WA 981041033702931
  46. John Heal, COTA/LSeattle, WA 981071184148413
  47. Brittany Hedin, COTAPoulsbo, WA 983701609351139
  48. Patricia Helgeson, COTA/LPort Orchard, WA 983661043633852
  49. Eva Heller, COTAKent, WA 980311942074869
  50. Laura HellingArlington, WA 982231104218692

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.