NPPES file of Aug 9, 2026

Occupational Therapist in California

9,244 NPPES records list occupational therapist with a practice address in California, 24 per 100,000 residents, the 50th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 106 of 185.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 225X00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 794

  1. Los Angeles794
  2. San Diego661
  3. San Francisco341
  4. San Jose245
  5. Torrance198

Occupational Therapist records in California

  1. Ernesto MartinezWalnut Park, CA 902551265725451
  2. Jessica Martinez, OTR/LOrange, CA 928661568138618
  3. Joseph Martinez, OTR/LValencia, CA 913551851053219
  4. Maria Martinez, OTR/LGreenbrae, CA 949041942461660
  5. Mary Ann Martinez, OTR/L, CHTNapa, CA 945581265623029
  6. Olivia Martinez, OTRSan Luis Obispo, CA 934011720772759
  7. Saul MartinezRiverside, CA 925031861855603
  8. Tania Martinez, OTAnaheim, CA 928051144852443
  9. Edmundo Martinez III, OTRSanta Rosa, CA 954091497063564
  10. Jenny Martinez Vivero, OTR/LLos Angeles, CA 900341821366337
  11. Tomi Martowski, OTD, OTR/LSan Diego, CA 921341285462374
  12. Celeste MartySan Francisco, CA 941121003577024
  13. Michelle MarumotoLos Angeles, CA 900151184094518
  14. Dina Marvizi, OTR/LLos Angeles, CA 900171780539148
  15. Neika Maryn, OTR/LSan Marcos, CA 920691649833054
  16. Riva Sameer MarzeenaEl Cajon, CA 920211336026483
  17. Rebeca Mask, MOT, OTR/LMartinez, CA 945531437546710
  18. Sirena Masket, OTROakland, CA 946181417757881
  19. Andrea Mason, O.T.R.Panorama City, CA 914021962619460
  20. Neda Massih, OTR/LWoodland Hills, CA 913641700253366
  21. Becca MassipMission Viejo, CA 926911770097032
  22. Linda Mather, OT, CHTBakersfield, CA 933091619906138
  23. Mark Mather, OTRSanta Clara, CA 950511104988864
  24. Marla MatherRedwood City, CA 940631548316896
  25. Anne MathewAnaheim, CA 928041417345737
  26. Annie MathewCorona, CA 928821578584561
  27. Jessica Mathias, M.S., OTR/LEncino, CA 913161346568680
  28. Kimberly MathisSan Diego, CA 921201750119301
  29. John Matias, OTR/LArleta, CA 913311518318609
  30. Alyssa Matlosz, OTD, OTR/LLos Angeles, CA 900271659191443
  31. Maria Matos, OTR/LRohnert Park, CA 949281518707926
  32. Cindy MatsubayashiLos Angeles, CA 900171770437642
  33. Loren Matsumura, OTR/LLos Angeles, CA 900731932213022
  34. Sarah Matsuoka, OTD, OTR/LMartinez, CA 945531982255329
  35. Sara Matsuura, MSRoseville, CA 956611124537808
  36. Michael Matt, OTHayward, CA 945411033755350
  37. Farrah Matta, OTR/LClaremont, CA 917111548052301
  38. Audrey Matthess, MSOT, OTR/LSan Diego, CA 921231457006488
  39. Maureen Matthews, OTLSan Jose, CA 951281326399288
  40. Rebecca Matthews, OTR/LSan Bernardino, CA 924071962890343
  41. Sacha Matthews, OTRLSan Leandro, CA 945781265500276
  42. Michelle Matti, OTR/LRedding, CA 960011902113020
  43. Justin Mattiuzzo, OTR/LModesto, CA 953551780300467
  44. Alicia Mau, OTR/LVentura, CA 930031801442280
  45. Makenna Maucher, OTR/LSan Clemente, CA 926731134939796
  46. Brittney MaulSan Diego, CA 921221518400514
  47. David Mauldin, COTAIrvine, CA 926041750679106
  48. Tiffany-Beth Maulhardt-Meyring, OCCUPATIONAL THERAPICamarillo, CA 930101811194848
  49. Laura Maurer, OTR/LLa Mesa, CA 919421114812005
  50. Nancy MaurerSan Bernardino, CA 924081043781297

Source: CMS NPPES, primary taxonomy 225X00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 50 of 51 per resident

  1. Nevada24
  2. Alabama24
  3. Hawaii24
  4. California24
  5. Oklahoma24
  6. 50 states and D.C.40

Source: CMS NPPES, primary taxonomy 225X00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

8.6% of these records appear in a Medicare file, against 10.2% 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. California8.6%
  2. United States10.2%

Occupational Therapist records in California, measured

  • In a Medicare file796 of 9,244 · 8.6% here, 10.2% nationally
  • In the CMS Doctors and Clinicians file911 · 9.9% here, 11.6% nationally
  • Not updated in five years or more5,208 · 56.3% here, 63.4% nationally
  • Median graduation year2018 · the 910 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 225X00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

9,244 NPPES records list occupational therapist (225X00000X) as their primary taxonomy with a practice address in California: 24 per 100,000 residents against 40 nationally (50 states and D.C.). Los Angeles has 794 of them (9%).

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. Florida7,925
  2. Texas7,689
  3. Pennsylvania7,136
  4. Illinois5,855

States with a similar rate per 100,000

  1. Hawaii23.8
  2. Oklahoma23.6
  3. Alabama24.3
  4. Nevada24.4

The largest states

  1. New York13,350
  2. Florida7,925
  3. Texas7,689
  4. Pennsylvania7,136
  5. Illinois5,855

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.