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 24 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. Christopher Myers, COTAGranada Hills, CA 913441396360780
  2. Rebecca MyresFresno, CA 937111477911501
  3. David Nael, COTA/LAnaheim, CA 928081720880081
  4. Grace Nakatsukasa, COTALos Angeles, CA 900331356810576
  5. Susan Nakaya AvilaSan Gabriel, CA 917751083950877
  6. Andrew Nalbandian, COTA/LNational City, CA 919501194077545
  7. Ashley NamLos Angeles, CA 900191609340967
  8. Ashley Napoles-Cromwell, COTAFresno, CA 937271477845899
  9. Franz Navarro, COTAAnaheim, CA 928051487200275
  10. Jacquelyne Navarro, COTA/LRancho Cucamonga, CA 917301174358337
  11. Jered NavarroPanorama City, CA 914021871057729
  12. Larry Navarro, C.O.T.A./CLong Beach, CA 908071942468251
  13. Marcela NavarroMontebello, CA 906401982007613
  14. Veronica NavarroLos Angeles, CA 900181114718525
  15. Lidia NegreteSan Diego, CA 921111568908598
  16. Steven Nelson, COTA/LDowney, CA 902421487144382
  17. Gerhomar Neri, COTA/LBakersfield, CA 933061720592587
  18. Sheri NerpiolGlendale, CA 912051750031290
  19. Sarah NeuOceanside, CA 920561427863695
  20. Rosa NevarezMonterey Park, CA 917541407244023
  21. Denise Newton, COTAIrvine, CA 926121164951315
  22. Aimee Nguyen, COTAFontana, CA 923361487047288
  23. Ashlley NguyenFresno, CA 937101134697014
  24. Christopher NguyenLong Beach, CA 908041952247827
  25. Hanh NguyenFountain Valley, CA 927081902660632
  26. Jennifer NguyenWest Covina, CA 917901073382107
  27. Kim Nguyen, COTAOrange, CA 928681396905691
  28. Quoc Nguyen, COTA/LArcadia, CA 910071699497925
  29. Toan NguyenGarden Grove, CA 928431588052088
  30. Tram Anh NguyenAnaheim, CA 928051477298487
  31. Tuan NguyenSan Diego, CA 921281669915138
  32. Vanessa NguyenSan Diego, CA 921061639018641
  33. Florin Nicodim, COTAEncino, CA 914361275991622
  34. Michelle NietoElk Grove, CA 956241659725893
  35. Jessica NikoletichBuena Park, CA 906201639875800
  36. Nicole NilsenSan Marcos, CA 920691760357032
  37. Nikolay Nisimov, COTALong Beach, CA 908021285075937
  38. Myles NismalAnaheim, CA 928051528984366
  39. Andrea Nocera, COTA/LFremont, CA 945361467913574
  40. Mel Nodalo, COTATorrance, CA 905031053186197
  41. Brenda Noel, COTA/LDenair, CA 953161457847428
  42. Patricia NoerbaekSantee, CA 920711962124180
  43. Victoria Nojd, COTA/LSpring Valley, CA 919781326223447
  44. Nazriah Noor, COTAAlhambra, CA 918011558064451
  45. Kersey NoralezLos Angeles, CA 900271912605825
  46. Janelle NorberteGlendale, CA 912061548806342
  47. Kara NorderumRedding, CA 960011275840316
  48. Pamela NorflinVallejo, CA 945911164935524
  49. Christine NounouteMerced, CA 953401780409946
  50. Rowena Nova, COTA/LLancaster, CA 935341831588755

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.