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 14 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. Joni Santistevan, COTA/LPort Orchard, WA 983661316760382
  2. Karen SatherSilverdale, WA 983831609344134
  3. Brianna SaugenSpokane Valley, WA 992161205257508
  4. Jaimie SawyerOak Harbor, WA 982771639884125
  5. Michele Schaab, COTA/LSeattle, WA 981091124904776
  6. Connie Scharping, COTA/LSumner, WA 983901851643290
  7. Thomas Scheffer, C.O.T.A.Moses Lake, WA 988371710385307
  8. Allie ScheumannLakewood, WA 984991629643267
  9. Cynthia SchindlerEverett, WA 982031013556364
  10. Pamela Schleg, COTAEverett, WA 982011033345434
  11. Tiffany Schriever, COTAKent, WA 980301821415597
  12. Vanessa Schubert, COTA/LSequim, WA 983821972021830
  13. Alissa Schuster, COTANewport, WA 991561669918041
  14. Jennifer SchwartzSpokane, WA 992081144765090
  15. Kelly Schwarze, COTABremerton, WA 983101588178131
  16. Savannah ScottBellevue, WA 980051275367062
  17. Cassandra Seale, COTAIssaquah, WA 980271356049563
  18. Kelly Sennott, COTAEnumclaw, WA 980221154021327
  19. Lisa Sessions, COTA/LVancouver, WA 986851265663843
  20. Annaliese Shafer, COTARichland, WA 993521487383212
  21. Kyle ShankleSnohomish, WA 982901720554660
  22. Shannon Shaw, COTA/LAuburn, WA 980021386962728
  23. Tondra SheldonSeattle, WA 981091184307217
  24. Jessica ShepherdIssaquah, WA 980271710303417
  25. Nancy Shepherd, COTAIssaquah, WA 980271487754388
  26. Melodie Sherer, COTA/LVancouver, WA 986621467966895
  27. Jessica Sides, COTAPuyallup, WA 983721225625056
  28. Albert SiemsSeattle, WA 981341972843936
  29. Stephanie Simmons, COTA/LAberdeen, WA 985201275076275
  30. Teresa SimmonsFederal Way, WA 980031700217049
  31. Brianna Singer, COTAZ/LSpokane, WA 992081023820503
  32. Tarandeep Singh, COTAAlgona, WA 980011740133701
  33. Yadvinder SinghFederal Way, WA 980031912270364
  34. Andre Singleton, COTAFircrest, WA 984661063818177
  35. Jessamine Sirelson, COTA/LDeming, WA 982441548718323
  36. Jessica SisonWestport, WA 985951245704469
  37. Karen Smejkal, COTAMaple Valley, WA 980381619214947
  38. Anne Smith, COTAKent, WA 980311336506724
  39. Elizabeth Smith, COTA/LNewcastle, WA 980561881168011
  40. Jacqueline Smith, OTA/LMount Vernon, WA 982731578906368
  41. Jennifer Smith, OTA/LEverett, WA 982031053839647
  42. Mikel Smith, COTA/LWenatchee, WA 988011407476831
  43. Mitchell Smith, COTABellevue, WA 980051730902263
  44. Susan SmithNewcastle, WA 980591861634149
  45. Tegan SmithSpokane, WA 992071265374177
  46. Brenda Smithers, COTA/LShoreline, WA 981331356689178
  47. Kaila Snell, COTASpokane Valley, WA 992161639758196
  48. Yuliya SobkoSpanaway, WA 983871174999452
  49. Janessa Sorlien, COTA/LCentralia, WA 985311528387669
  50. Faith Sosa, COTAPuyallup, WA 983711417336611

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.