NPPES file of Aug 9, 2026

Assistant Behavior Analyst in California

2,656 NPPES records list assistant behavior analyst with a practice address in California, 6.8 per 100,000 residents, the 2nd highest rate of 51. Ontario and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 9 of 54.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 106E00000X · method

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

Ontario has the most, 121

  1. Ontario121
  2. Los Angeles116
  3. San Diego111
  4. Sacramento110
  5. Corona78

Assistant Behavior Analyst records in California

  1. Valerie CastilloOntario, CA 917641447836556
  2. Ana CastillonGilroy, CA 950201114739869
  3. Shantel CastleOrange, CA 928681124864772
  4. Anna Paulina CastroGardena, CA 902481134070048
  5. Azuth CastroOntario, CA 917641568271047
  6. Cristina CastroLos Angeles, CA 900431699320754
  7. Eduardo CastroDelano, CA 932151023661535
  8. Elisse CastroValencia, CA 913551952081770
  9. Hilda CastroEl Centro, CA 922431699616474
  10. Kailey Castro, BCABASan Diego, CA 921211972176956
  11. Katia CastroValencia, CA 913551578391827
  12. Kyara CastroImperial, CA 922511659193589
  13. Maria CastroImperial, CA 922511356031165
  14. Maribel CastroWest Covina, CA 917901588481691
  15. Raquel CastroEl Centro, CA 922431003761099
  16. Samantha CastroWhittier, CA 906051508756206
  17. Trinidad CastroImperial, CA 922511447042106
  18. Zayda Castro RodriguezRiverside, CA 925091407351315
  19. Ashley CatesRiverside, CA 925041265231062
  20. Justin CaughornTustin, CA 927801194449777
  21. Caitlynn CavazosRancho Cucamonga, CA 917301093325680
  22. Yasir Cazares CastroEl Centro, CA 922431245196252
  23. Jacquelyn CeballosOntario, CA 917641679464598
  24. Leslie CedilloOrange, CA 928681174089908
  25. Rejoice CelesteSan Rafael, CA 949031033868906
  26. Alexandra CerdaBakersfield, CA 933091790604155
  27. Hoya Jane CerezoSan Jose, CA 951161689252645
  28. Ulises Cerros TorresSacramento, CA 958261134903743
  29. Brianda CervantesEl Centro, CA 922431689541492
  30. Christian CervantesOrange, CA 928681750849436
  31. Erin CervantesSan Jose, CA 951281346719143
  32. Jasmine Cervantes, BAOntario, CA 917611659048700
  33. Natalie Chacon, M.S.Ontario, CA 917641982212213
  34. Ruby Chairez, DIEl Monte, CA 917321821661174
  35. Mary Chamberlain, BCABASan Diego, CA 921311811430846
  36. Aaron ChambersLos Angeles, CA 900431891419826
  37. Brooke ChambersSherman Oaks, CA 914031477324689
  38. Azure ChamplainCarlsbad, CA 920081124472659
  39. Leon ChanRancho Cucamonga, CA 917301164245411
  40. Thu ChanElk Grove, CA 956241831610781
  41. Jesslyn ChandraLos Angeles, CA 900361861383879
  42. Kenadi ChappleCorona, CA 928791013745595
  43. Cassandra CharlesFresno, CA 937111326524349
  44. Garrett ChaseCanyon Lake, CA 925871801406814
  45. Richard Chatham, BCABACorona, CA 928781881244770
  46. Taylor ChatmanElk Grove, CA 956241053953687
  47. Sonya ChavesCorona, CA 928791487371787
  48. Agustin ChavezPasadena, CA 911061245088871
  49. Alondra ChavezLos Angeles, CA 900431083295448
  50. Amy ChavezSan Diego, CA 921231538731229

Source: CMS NPPES, primary taxonomy 106E00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 2 of 51 per resident

  1. Florida10.2
  2. California6.8
  3. Oklahoma6.7
  4. South Carolina4.9
  5. 50 states and D.C.2.9

Source: CMS NPPES, primary taxonomy 106E00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

under 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. California0.0%
  2. United States0.1%

Assistant Behavior Analyst records in California, measured

  • In a Medicare file1 of 2,656 · under 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, under 0.1% nationally
  • Not updated in five years or more750 · 28.2% here, 26.4% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 106E00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,656 NPPES records list assistant behavior analyst (106E00000X) as their primary taxonomy with a practice address in California: 6.8 per 100,000 residents against 2.9 nationally (50 states and D.C.). Ontario has 121 of them (5%).

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. Florida2,306
  2. Texas414
  3. New York334
  4. Michigan316

States with a similar rate per 100,000

  1. Oklahoma6.7
  2. South Carolina4.9
  3. Kansas4.3
  4. Nevada4.1

The largest states

  1. Florida2,306
  2. Texas414
  3. New York334
  4. Michigan316
  5. Virginia275

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.