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 15 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. Brittany Hazen, COTA/LSacramento, CA 958211366904906
  2. Stacey HeadRedding, CA 960011659112233
  3. Laura HealyNapa, CA 945591598693731
  4. Jaylen HebreoLos Angeles, CA 900191871274423
  5. Keiko HectorRedondo Beach, CA 902771972443000
  6. Lori HegerleSan Diego, CA 921031770421216
  7. Terry Helin, COTA/LApple Valley, CA 923071285577817
  8. Roberta HeltaLos Angeles, CA 900261568220853
  9. Paula HenkeSan Jacinto, CA 925831518355056
  10. Heidi Henri, C.O.T.ALaguna Hills, CA 926531851586846
  11. Carolyn Henry, COTAAliso Viejo, CA 926561841408838
  12. Rylie Herbel, COTALake Forest, CA 926301538953062
  13. Chelsea Heritage, COTAHawthorne, CA 902501245739093
  14. Earl Joshua HernandezLong Beach, CA 908051912409806
  15. Francisco Hernandez, COTAVista, CA 920831437797156
  16. Jasmine HernandezRancho Santa Margarita, CA 926881730052473
  17. Liza HernandezDowney, CA 902411609215748
  18. Marsha HernandezDiamond Bar, CA 917891437084415
  19. Michelle Hernandez, COTA/LLoomis, CA 956501760871461
  20. Robin Hernandez, OTA/LHemet, CA 925431699903658
  21. Sugey Hernandez, COTAWestlake Village, CA 913611922737261
  22. Wendell HernandezHuntington Beach, CA 926471003738451
  23. Amy Hernandez-Valero, COTASan Bernardino, CA 924081669234597
  24. Jetta Herring, COTABakersfield, CA 933121841526589
  25. Lynn Herzberg, COTA/CLaguna Hills, CA 926531003082637
  26. Wesley Hess, OTANapa, CA 945581174149553
  27. Laura Hessig, COTASan Rafael, CA 949031649431305
  28. Deanna HicksRedlands, CA 923741497441745
  29. Jenna Hiebert, COTASeal Beach, CA 907401922304765
  30. Jennifer Hier, COTALos Angeles, CA 900321306234745
  31. Jessica Hildebrandt, COTALos Angeles, CA 900641669841003
  32. Tawnya Hildreth, COTAMadera, CA 936381699472985
  33. Alexandra HillEureka, CA 955011578404109
  34. Carol HillFresno, CA 937271114315249
  35. Pope Hill, OTARancho Mirage, CA 922701134309388
  36. Anna HillaryFontana, CA 923361518325869
  37. Tammie HilliardRedding, CA 960011528565058
  38. Carolyn Hintze, OTRFairfield, CA 945331932266921
  39. Wesley HoHayward, CA 945411245754571
  40. Dan Hoang, COTA/LCanoga Park, CA 913041780469361
  41. Daniel HoangLos Angeles, CA 900481366098576
  42. Debby HoangAnaheim, CA 928071225571540
  43. Jasmine Hobson, COTASan Marcos, CA 920781033379995
  44. Megan HodgesHemet, CA 925441326704255
  45. Sheri HodgesNational City, CA 919501053271510
  46. Julianne Hoffman, COTASan Diego, CA 921211841047388
  47. Sara HoffmanNorth Hollywood, CA 916061619511177
  48. Marie Hofmann, COTA/LPalm Desert, CA 922111376200485
  49. Kristopher HolgadoAlhambra, CA 918031730717562
  50. Jana HolmgrenMenifee, CA 925841134512023

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.