NPPES file of Aug 9, 2026

Occupational Therapy Assistant in California

1,869 NPPES records list occupational therapy assistant with a practice address in California, 5 per 100,000 residents, the 49th highest rate of 51. San Diego and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 26 of 38.

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).

San Diego has the most, 124

  1. San Diego124
  2. Los Angeles105
  3. Sacramento56
  4. Anaheim43
  5. Long Beach43

Occupational Therapy Assistant records in California

  1. Richard PalmerLaguna Hills, CA 926531295940930
  2. Maria PamplonaOntario, CA 917621700586054
  3. Erin ParagasUpland, CA 917861083571616
  4. Giselle Paredes, COTABeverly Hills, CA 902111164361838
  5. Jeremiah Paredes, COTA/LDowney, CA 902421104675172
  6. Luis Paredes, COTA/LOrange, CA 928681487453122
  7. Noel Paredes, COTA/LMission Viejo, CA 926911932442696
  8. Christian Paris, COTA/LLos Angeles, CA 900271033959499
  9. Sheila Paris, OTASanta Ana, CA 927051689062028
  10. Sandy Park, OTASun Valley, CA 913521992160006
  11. Ian Christopher ParraEl Cajon, CA 920191447640693
  12. Jocelyn ParraRiverside, CA 925011669181939
  13. Heather PartonBlythe, CA 922251659779874
  14. Kristi Passey, COTALodi, CA 952421366712028
  15. Kerry PattersonRancho Cucamonga, CA 917011194115071
  16. Kevin Paul, COTA/LRancho Mirage, CA 922701194422766
  17. Kimberlie Payne, COTAWaterford, CA 953861356686992
  18. Ashley PazAnaheim, CA 928051366387300
  19. Sarah Peck, COTACoronado, CA 921181154836336
  20. Brandon PeckhamIrvine, CA 926181881121101
  21. Paige PedersonNorco, CA 928601750196705
  22. Michal PekalaFair Oaks, CA 956281457730400
  23. Ashley Gizel PeksonBrea, CA 928211265034524
  24. Sophea PenSacramento, CA 958311801763511
  25. Kimberly PenaLos Angeles, CA 900631598462905
  26. Selena Pena, COTAKingsburg, CA 936311487335527
  27. Amber PenceStockton, CA 952101346401791
  28. Heather Penley, COTA/LMarina, CA 939331336836840
  29. Jeah PeraltaSeal Beach, CA 907401982184990
  30. Jorge Peralta, COTA/LSanta Ana, CA 927041457749970
  31. Salvador PereyraEl Cajon, CA 920201316817620
  32. Alejandro Perez, OTA/LSanta Ana, CA 927061376168765
  33. Elias Perez, COTA/LSanta Ana, CA 927071669978490
  34. Erika PerezPalm Desert, CA 922111992460471
  35. Ermendi PerezSalinas, CA 939011093298747
  36. Estrella PerezNorth Hollywood, CA 916011992401806
  37. Izaac PerezLadera Ranch, CA 926941437970738
  38. Jacqueline PerezLos Angeles, CA 900471588552459
  39. Jessica Perez, OTA5295Norco, CA 928601770342479
  40. Johana PerezEl Centro, CA 922431386340685
  41. Kristina PerezClovis, CA 936111083476147
  42. Kristy PerezEncino, CA 914361215512371
  43. Therese PerezLos Angeles, CA 900181649092917
  44. Thomas Perez, OTADuarte, CA 910101801433693
  45. Margit Perfecto, C.O.T.A.Chula Vista, CA 919101528271954
  46. Victor Perkins, COTAEl Cajon, CA 920201174036230
  47. Sara PerrySacramento, CA 958641164977914
  48. Stormi PerryCovina, CA 917231790400018
  49. Lauren PetersenLos Angeles, CA 900171194672972
  50. Amanda Peterson, COTA/LCherry Valley, CA 922231821911108

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

California ranks 49 of 51 per resident

  1. Alabama5
  2. Georgia5
  3. Louisiana5
  4. California5
  5. District of Columbia4
  6. Utah4
  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.

0.1% 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. California0.1%
  2. United States0.1%

Occupational Therapy Assistant records in California, measured

  • In a Medicare file2 of 1,869 · 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file2 · 0.1% here, 0.1% nationally
  • Not updated in five years or more1,080 · 57.8% 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

1,869 NPPES records list occupational therapy assistant (224Z00000X) as their primary taxonomy with a practice address in California: 5 per 100,000 residents against 12 nationally (50 states and D.C.). San Diego has 124 of them (7%).

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. Pennsylvania2,155
  2. Illinois1,498
  3. Wisconsin1,460
  4. North Carolina1,357

States with a similar rate per 100,000

  1. Louisiana4.9
  2. Georgia5.1
  3. District of Columbia4.1
  4. Alabama5.5

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.