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 35 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. Rani UppalapatiSan Jose, CA 951191215066840
  2. Robert Uren, COTASan Diego, CA 921231962292771
  3. Jamie Urrutia, COTASan Diego, CA 921281063044121
  4. Trina Urtis, COTALakewood, CA 907121720654965
  5. Simona UrucNorth Highlands, CA 956601013473123
  6. Adam UticSan Diego, CA 921081043670540
  7. Karen UyodFoothill Ranch, CA 926101912395187
  8. Catherine ValdezTorrance, CA 905031134518384
  9. Damarys Valdez, COTA/LHuntington Beach, CA 926471942988506
  10. Althea Valencerina, COTA/LPomona, CA 917671609227719
  11. Yadira ValenciaWhittier, CA 906021881470797
  12. Diana Valenzuela, COTALos Angeles, CA 900191972991651
  13. Jorge Valenzuela, COTAChula Vista, CA 919101164627659
  14. Michelle ValenzuelaAnaheim, CA 928081336906072
  15. Jason ValerioTorrance, CA 905011104229152
  16. Sarah VallesArcadia, CA 910061295457869
  17. Omar VallezApple Valley, CA 923071821839317
  18. Paula Van AlenModesto, CA 953501184477341
  19. Jaclyn Van De WeteringLake Forest, CA 926301225661341
  20. Norma Van Der Linden, COTACarlsbad, CA 920091932963634
  21. Jacey Van DykBishop, CA 935141043761216
  22. Samantha Van LeeuwenCulver City, CA 902301386375889
  23. Shelby Vandereb, COTA/LTemecula, CA 925921285315762
  24. Foua VangGarden Grove, CA 928431952838724
  25. Richard VangFresno, CA 937271518720564
  26. Xia VangFresno, CA 937221235673542
  27. Sheri VangorpCorona, CA 928801245472901
  28. Emma VardanianVan Nuys, CA 914051912641275
  29. Jesus VargasRiverside, CA 925041851287635
  30. Viciente VargasCovina, CA 917231801756473
  31. Blanca Vargas Martinez, COTASan Francisco, CA 941161841123569
  32. Fernando Vasco, COTAMontebello, CA 906401528456670
  33. Diane VasquezMurrieta, CA 925631336787761
  34. Natalie Vaughn, COTA/LMonterey, CA 939401861327355
  35. Patricia Vazquez, COTAPleasanton, CA 945881174107189
  36. James Vea, COTA/LModesto, CA 953501134660186
  37. Daisy Mae VelardeLos Angeles, CA 900411336849199
  38. Alexis VelascoRiverside, CA 925061801739255
  39. Genessis VelasquezLos Angeles, CA 900481497386866
  40. Michelle Velasquez Mendoza, OTAMontebello, CA 906401356994701
  41. Jazmin VelazquezRiverside, CA 925041912893587
  42. Derry VelinRedding, CA 960021336773027
  43. John VeneracionVentura, CA 930031306709084
  44. Karen Ventura, COTA/LSanta Ana, CA 927041356179493
  45. Brenda Verduzco, COTA/LNorco, CA 928601497641369
  46. Erica Verkamp, C.O.T.A./CFullerton, CA 928321417141441
  47. Jeanette VermaVentura, CA 930041609365758
  48. Keshav VermaVentura, CA 930041053714840
  49. Nicholas VernonSan Jose, CA 951161780395988
  50. Jonathan VerstegenSan Clemente, CA 926731124490123

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.