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 27 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. Monica PetzMission Viejo, CA 926911356626386
  2. Sara PfefferStockton, CA 952101497303663
  3. Diana Pfost, COTA/LSan Diego, CA 921031447199518
  4. Valerie Phan, COTALong Beach, CA 908081760143598
  5. Elliott Phillips, COTASan Diego, CA 921231801714845
  6. Lyndon Bb PhillipsClovis, CA 936111902740434
  7. Katelynn PichRiverside, CA 925061023888757
  8. Kristina Pickering, COTA/LRescue, CA 956721689247520
  9. Melissa PiferSaratoga, CA 950701457847097
  10. Princess PillosSan Rafael, CA 949011528796299
  11. Stevie Plass, COTA/LChico, CA 959281063246965
  12. Agnieszka Plate, COTABakersfield, CA 933091346576485
  13. Edith Plotner, COTASacramento, CA 958311689836991
  14. Gina PodestaLodi, CA 952421225784473
  15. Jessica Polonski, COTASan Francisco, CA 941221124775838
  16. Esmeralda PonceWest Sacramento, CA 956051356005490
  17. Julian PonferradaRedondo Beach, CA 902781639630155
  18. Crystal Rich PontiverosLos Angeles, CA 900291801411491
  19. Nancy Ponzio, COTAMontclair, CA 917631942926290
  20. Rodrigo PosadasMadera, CA 936381972075158
  21. Summer Potter, COTA/LPetaluma, CA 949541629503941
  22. Mackenzie PottsPoway, CA 920641821933227
  23. Maryah Prado, COTASan Diego, CA 921301366160897
  24. Amy Prater, COTAPalmdale, CA 935511326382904
  25. Michelle Preciado, COTA/LApple Valley, CA 923071326982927
  26. Sehila Preciado, COTA/LVan Nuys, CA 914051518611565
  27. Michele PrestonSan Diego, CA 921221598208126
  28. Leah Price, COTAMiramonte, CA 936411669317376
  29. Danielle PriebeConcord, CA 945211871226282
  30. Michelle Prince, COTASan Diego, CA 921111093159659
  31. Andre PrystupaEncino, CA 914361134995285
  32. Iona Puchta, COTAManteca, CA 953361891961231
  33. Jennie PughConcord, CA 945201063957306
  34. Karolina PulberNorth Highlands, CA 956601013533942
  35. Patrick Punzalan, COTALong Beach, CA 908041053165308
  36. Ma Theresa Lourdes Purino, COTA/LRedding, CA 960021164156410
  37. Allie PussmanSan Dimas, CA 917731821570078
  38. Nestle Quiambao, COTA/LLos Angeles, CA 900291063286722
  39. August Quinn, COTA/LLaguna Hills, CA 926531164138459
  40. Evelyn Quintana, COTARedondo Beach, CA 902781063348431
  41. Sarah Quintero, COTAChino, CA 917101346891215
  42. Tiffany QuionEscondido, CA 920291982413159
  43. Giuseppe RabinLong Beach, CA 908041619500378
  44. Helen RaineriSan Diego, CA 921031033057021
  45. Alexa RakowSanta Barbara, CA 931051477406908
  46. Ma Roselle RallosPanorama City, CA 914021922540723
  47. Angelita RamirezPlacentia, CA 928701700388386
  48. Barbara RamirezSan Diego, CA 921221093482457
  49. Israel RamirezSpring Valley, CA 919771346030509
  50. Joel RamirezVacaville, CA 956871124519129

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.