NPPES file of Aug 9, 2026

Behavior Analyst in California

20,348 NPPES records list behavior analyst with a practice address in California, 52 per 100,000 residents, the 5th highest rate of 51. Costa Mesa and San Diego have the most; each record links to the provider's NPI and the California license search. Page 145 of 407.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103K00000X · method

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

Costa Mesa has the most, 1,239

  1. Costa Mesa1,239
  2. San Diego1,157
  3. Sacramento597
  4. Los Angeles534
  5. Woodland Hills509

Behavior Analyst records in California

  1. Ana GuerreroCosta Mesa, CA 926261922963339
  2. Areysy GuerreroIrvine, CA 926181043794977
  3. Briana GuerreroTemecula, CA 925901669939112
  4. Bryanna GuerreroHuntington Beach, CA 926491407457773
  5. Cynthia GuerreroSacramento, CA 958231588162051
  6. Haleigh GuerreroRancho Cucamonga, CA 917301912853383
  7. Jadyn GuerreroCosta Mesa, CA 926261255297461
  8. Jordon Guerrero, BCBASan Diego, CA 921031215517974
  9. Jose GuerreroOrange, CA 928681043776222
  10. Kassandra GuerreroSanta Fe Springs, CA 906701356996094
  11. Kim GuerreroTujunga, CA 910421215448675
  12. Luis GuerreroEncino, CA 913161639523111
  13. Madison GuerreroCosta Mesa, CA 926261326893140
  14. Madison GuerreroConcord, CA 945201487411971
  15. Mariana GuerreroSan Diego, CA 921101508445180
  16. Michelle GuerreroCosta Mesa, CA 926261235984980
  17. Paola GuerreroOakland, CA 946031679059778
  18. Sonya GuerreroCosta Mesa, CA 926261629671490
  19. Yvette GuerreroGarden Grove, CA 928401952070849
  20. Kasandra Guerrero LamasPalm Springs, CA 922621417636101
  21. Ernesto Guerrero-OcampoCosta Mesa, CA 926261891485918
  22. Bianca GuevaraNorco, CA 928601184227951
  23. Edith GuevaraOntario, CA 917641942753819
  24. Justin Angelo GuevaraSan Bruno, CA 940661184194870
  25. Luz Guevara, MS, BCBAThousand Oaks, CA 913601215781703
  26. Madelyne GuevaraLos Angeles, CA 900151417678343
  27. Yakelinn GuevaraWoodland Hills, CA 913671689150831
  28. Ariana Guevara LarumbeDowney, CA 902421932741287
  29. Emily GuggenheimAnaheim, CA 928051861953457
  30. Kylie Guglielmetti, BAThousand Oaks, CA 913601205109881
  31. Katylynn GuglielmoHercules, CA 945471912324799
  32. Ashleigh GuichShingle Springs, CA 956821285018002
  33. Megan Guico-PhillipsSan Diego, CA 921011518512276
  34. Claudia GuidosEncino, CA 914361912385410
  35. Ashley GuidryFresno, CA 937201851285530
  36. Jasmine GuidryWoodland Hills, CA 913671164054714
  37. Wendy GuidryWoodland Hills, CA 913671801374111
  38. Esmeralda GuijarroWestminster, CA 926831932697760
  39. Stephanie Guijarro, BCBASanta Ana, CA 927011104199504
  40. Israel GuijosaSalinas, CA 939061679954440
  41. Jose GuijosaBloomington, CA 923161801519160
  42. Jeannette GuijozaEscondido, CA 920251992357727
  43. Ashley GuillenConcord, CA 945201801610746
  44. Cesar GuillenCosta Mesa, CA 926261568266138
  45. Jeffrey GuillenEl Cajon, CA 920201356842165
  46. Paola GuillenSherman Oaks, CA 914031710370887
  47. Rogelio GuillenSan Diego, CA 921211710288808
  48. Sharon GuillenOakland, CA 946061477049195
  49. Trina GuillenVictorville, CA 923921104245935
  50. Victor GuillenAntioch, CA 945091194292748

Source: CMS NPPES, primary taxonomy 103K00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 5 of 51 per resident

  1. Massachusetts67
  2. Hawaii63
  3. Florida60
  4. California52
  5. New Mexico47
  6. Oklahoma44
  7. 50 states and D.C.32

Source: CMS NPPES, primary taxonomy 103K00000X 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%

Behavior Analyst records in California, measured

  • In a Medicare file5 of 20,348 · under 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file14 · 0.1% here, 0.1% nationally
  • Not updated in five years or more10,235 · 50.3% here, 47.0% nationally
  • Median graduation year2017 · the 14 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103K00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

20,348 NPPES records list behavior analyst (103K00000X) as their primary taxonomy with a practice address in California: 52 per 100,000 residents against 32 nationally (50 states and D.C.). Costa Mesa has 1,239 of them (6%).

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. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718

States with a similar rate per 100,000

  1. New Mexico47.5
  2. Oklahoma44.0
  3. New Hampshire41.8
  4. Hawaii63.5

The largest states

  1. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718
  5. Nevada4,540

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.