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 1 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. Sara Acacio, COTAFederal Way, WA 980031760817084
  2. Joyce Ackermran, COTA/LEllensburg, WA 989261972759710
  3. Amanda Adams, LMP, COTALynnwood, WA 980371235467077
  4. Jennifer Adkins-Grossman, COTASpokane, WA 992081427572684
  5. Arnold AgraviadorBellevue, WA 980041215716568
  6. Krystal Aguirre, COTAEverett, WA 982041376354753
  7. Elisabeth Agyekum, COTA/LEverett, WA 982081811355795
  8. Lynn Ahnen-Turnblom, COTA/LSeattle, WA 981341487136321
  9. Melinda Akerson, COTAPort Orchard, WA 983661649149030
  10. Cynthia AkinMarysville, WA 982711487081055
  11. Savannah AldermanYakima, WA 989081245994623
  12. Preethi Alexander, COTA/LPuyallup, WA 983721336500073
  13. Lisa Alishio, COTA/LSeattle, WA 981181760133862
  14. Sarah AlvisTacoma, WA 984091285008532
  15. April Amundson, COTA/LVancouver, WA 986821639529373
  16. Austin Anderson, COTA/LUnion Gap, WA 989031821478843
  17. Brittany Anderson, COTA/LLacey, WA 985161275936577
  18. Clarice Anderson, COTASpokane, WA 992081841454428
  19. Danell Anderson, COTA/LMonroe, WA 982721902751076
  20. Katherine AndersonSpanaway, WA 983871568855294
  21. Sherri Anderson, COTA/LSpanaway, WA 983871497910830
  22. Regeena AnsonSeattle, WA 981041992298889
  23. Teresa Archer, OTATacoma, WA 984451770691586
  24. Elizabeth ArchuletaSeattle, WA 981191508288523
  25. Catherine ArmstrongEverett, WA 982011689469777
  26. Gursharanjit AtkarSpokane, WA 992021780146142
  27. Gayle Atkins, COTA/LOrting, WA 983601093578213
  28. Alison Ave Lallemant, COTA/LLongview, WA 986321811156607
  29. Alice Avery, LMT, COTASeattle, WA 981361982927034
  30. Connie Bailey, COTA/LVancouver, WA 986611619334265
  31. Russell Baker, C.O.T.A. OC 60984452Bellingham, WA 982251396390415
  32. Katherine Barber, COTALake Tapps, WA 983911679936884
  33. Samantha BarberTacoma, WA 984081407233737
  34. Megan BarlasTacoma, WA 984441184151920
  35. Michelle Barnett, COTA/LAuburn, WA 980921467706721
  36. Lynne BaroniBellingham, WA 982261164683868
  37. Evan Bassett, COTASpokane, WA 992081245953280
  38. Rocio Bauman, COTASnohomish, WA 982901629684238
  39. Alessandro Bautista, COTA/LSeattle, WA 981441447785076
  40. Nicole Bautista, COTA/LKent, WA 980301245923952
  41. Krista Baysinger, COTAAuburn, WA 980021295683894
  42. Eva BealBonney Lake, WA 983911700291598
  43. Joy BearColville, WA 991141912437393
  44. Megan BeardenSeattle, WA 981041356836084
  45. Barbara Beattie, COTA/LSnoqualmie, WA 980651831433440
  46. Nancy Beck, COTA/LBurien, WA 981661982050399
  47. Kara Beckner, COTAWalla Walla, WA 993621275885790
  48. Aynabeba BekeleLynnwood, WA 980371386252641
  49. Margaret Belanger, OTA/LBremerton, WA 983121710380605
  50. Heidi Bell, COTALake Tapps, WA 983911679961684

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.