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 5 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. Tracy BryantEl Cajon, CA 920201023408143
  2. Melissa BrzezinskiSan Diego, CA 921031871431817
  3. Tonja Buckner, COTAHawthorne, CA 902501881934396
  4. Tiffany BuddenbaumRancho Cordova, CA 956701891204145
  5. Melissa Budnick, COTASan Francisco, CA 941161952233769
  6. Katherine Buenaventura, COTASimi Valley, CA 930631437618253
  7. Nancy BuendiaSan Diego, CA 921031972434314
  8. Tuyet Bui, COTA/LSan Jose, CA 951321962023937
  9. Carah Burgess, COTACarmichael, CA 956081477447829
  10. Caren Burgess, COTATracy, CA 953761770898413
  11. Richard Burke, COTA/CLoma Linda, CA 923571538273834
  12. Stephanie BurksLos Angeles, CA 900191841672748
  13. Latanya Burnett, COTASacramento, CA 958341306057666
  14. Amy Burns, COTA LRancho Mirage, CA 922701184829541
  15. Keenya BurriesRancho Cucamonga, CA 917301356971659
  16. Tessa Burton, OTALaguna Hills, CA 926531881127520
  17. Erica Busby, COTAVentura, CA 930031508451626
  18. Yaisha Bush, COTAHealdsburg, CA 954481063183135
  19. Cheryl BushartSimi Valley, CA 930631649468331
  20. Jacqueline ButlerSan Ramon, CA 945831225481716
  21. Jason ByromSan Diego, CA 921101154111433
  22. Maria Liza CabreaOrange, CA 928681285023861
  23. Jane Caestecker, COTASalinas, CA 939011811766751
  24. Keba Cage, COTAClovis, CA 936111336357508
  25. Ivanlaurent Calara, LVN, COTA/LBellflower, CA 907061366981185
  26. Meaghan Caldwell, COTAFair Oaks, CA 956281023713385
  27. Clarissa CambaTemecula, CA 925901780495085
  28. Corrin Campbell, COTARescue, CA 956721952937740
  29. Steve CampbellHemet, CA 925451871278002
  30. Destynee Canaris, COTASanta Ana, CA 927051306532924
  31. Vincent Canezal, COTAOntario, CA 917621255863361
  32. Ashley CantwellWhittier, CA 906021255771796
  33. Richard CaoTustin, CA 927801891106266
  34. Mackenzie Carcamo, COTA/LRancho Santa Margarita, CA 926881710323472
  35. Priscilla Cardona, COTA/LLos Angeles, CA 900251700659398
  36. Kathleen Carleton, COTASan Diego, CA 921231891849436
  37. Alexandra CarlsonLos Angeles, CA 900571811781446
  38. Savannah CarlsonEl Centro, CA 922431881133973
  39. Cyrene Caronan, COTA/LRancho Palos Verdes, CA 902751902561731
  40. Laurie CarpioSacramento, CA 958351689064032
  41. Kristen CarrWhittier, CA 906061609438555
  42. Nancy Carr, COTALos Angeles, CA 900421366832792
  43. Jesus Carrillo, COTA/LRocklin, CA 956771407024102
  44. Joshua Carroll, COTAFresno, CA 937201306130778
  45. Danielle Carter, COTA/LFullerton, CA 928321679093298
  46. Kevin Caruthers, COTA/LFullerton, CA 928321194649525
  47. Alicia Cary, COTASacramento, CA 958421104472059
  48. Anthony CasamoRedding, CA 960011366945776
  49. Caitlin Casey, COTA/LMountain View, CA 940401609694942
  50. Laurel Casey, COTAHuntington Beach, CA 926471508100033

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.