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 10 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. Andrew Makari, COTAAuburn, WA 980921184155855
  2. Sarah MakhnykSpokane, WA 992081376028803
  3. Madonna Malacarne- Cooke, COTACentralia, WA 985311982722922
  4. Kim Mallonee, COTAChehalis, WA 985321598008336
  5. Omotade Mallum, COTASeattle, WA 981261689123507
  6. Morgan Malnati, COTA/LMaple Valley, WA 980381386184331
  7. Scott Mangum, COTAKirkland, WA 980331669894242
  8. Celia Mann, COTA/LLakewood, WA 984991538989769
  9. Britni Manos, COTA/LEverett, WA 982011427521376
  10. Sirea ManradgeSeattle, WA 981251720704315
  11. Debra MarositzFederal Way, WA 980031285981381
  12. Elizabeth Marshall, COTASnohomish, WA 982901962842302
  13. Cheryl Martin, COTAShoreline, WA 981331720248917
  14. Tawnya Martineau, COTARichland, WA 993521962684928
  15. Tatsiana MartynavaTacoma, WA 984451801200746
  16. Phyllis Mason, COTA/LMoses Lake, WA 988371487990735
  17. Traci Mason, COTARenton, WA 980551902676364
  18. Andraya Matteson, COTA/LPasco, WA 993011497093579
  19. Chistopher Mattsen, OTAEllensburg, WA 989261700391653
  20. Krista MatulionisLynnwood, WA 980361992185086
  21. Rebecca Mayor, OTATacoma, WA 984451528710563
  22. Jon-Preston McAdams, COTA/LSpokane Valley, WA 992121992511448
  23. Hannah McAllister, COTA/LSeattle, WA 981041922656255
  24. Chelsie McCalla, COTASeattle, WA 981091417449968
  25. Rachel McCarter, COTA/LBellevue, WA 980051417445156
  26. Kimberly McCollom, COTAFall City, WA 980241912344490
  27. Julie McCordSpokane, WA 992021134946320
  28. Bonnie McCoy, COTATacoma, WA 984091982191714
  29. Ashley McCulloch, COTA/L, DORLongview, WA 986321902398803
  30. Jill McDaniel, COTA/LMaple Valley, WA 980381083070353
  31. Katheryn McDonald, COTASeattle, WA 981341407167455
  32. Jocelyn McElderry, COTARichland, WA 993521881077394
  33. Oksana McGruder, COTAMarysville, WA 982711215442587
  34. Vanessa McHargueSeattle, WA 981441871031781
  35. Michael McIntyre, COTATacoma, WA 984021427423961
  36. Kristine McInvaille, COTA/LLangley, WA 982601174830269
  37. Jamie McLachlan, COTASpokane, WA 992081659881464
  38. April McLeanArlington, WA 982231518108679
  39. Christine McLellan, COTABremerton, WA 983121841497252
  40. Laura McMahill, COTA/LEnumclaw, WA 980221639683501
  41. Jamie McManamon, COTA/LTacoma, WA 984311619339322
  42. Jorge Medina, COTACentralia, WA 985311518485804
  43. Hannah Megran, COTAAuburn, WA 980021972012086
  44. Sarah Meisel, COTA/LSeattle, WA 981091780266080
  45. Angela Melvin-Pratt, COTAOlalla, WA 983591134999055
  46. Rebecca Mermod, COTAPort Angeles, WA 983621407053077
  47. Pamela Merrill, COTAOak Harbor, WA 982771417291162
  48. Hannah Middleton, OTAChehalis, WA 985321407576671
  49. Stephanie MikkelsenWenatchee, WA 988011417640822
  50. Marie Milberger, COTA/LAberdeen, WA 985201316127483

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.