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 395 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. Meredith WikeSan Jose, CA 951281730493057
  2. Matthew Wilbat, M.A., B.C.B.ASan Diego, CA 921201588186415
  3. Jackie WilburWildomar, CA 925951295684843
  4. Donovan WilcoxLa Mesa, CA 919421679467013
  5. Steven Wildgor, BCBAEncino, CA 914361285111310
  6. Bryana WilesGardena, CA 902481578129433
  7. Jade WileyRancho Cucamonga, CA 917301174497077
  8. Tawna WileyVacaville, CA 956871639672769
  9. Megan WilhelmySan Francisco, CA 941101851893481
  10. Chrystal Wilhight, BCBARancho Cordova, CA 956701427553551
  11. Chelsea WilhiteCoarsegold, CA 936141992158927
  12. Brian WilkFairfield, CA 945331104214923
  13. Ryli WilkersonCosta Mesa, CA 926261083381594
  14. Connor WilkinVentura, CA 930031598632911
  15. Richard WilkinsSan Mateo, CA 944011740720838
  16. Shanelle WilkinsTorrance, CA 905051285362491
  17. Victoria Wilkins, BCBABakersfield, CA 933091528829090
  18. Violetta WilkinsWoodland Hills, CA 913671093299877
  19. Brittany Wilkinson, BCBAIrvine, CA 926141508326356
  20. Jeanine WilkinsonPleasanton, CA 945661922348721
  21. Lauren Wilkinson, M.A.Aliso Viejo, CA 926561093359705
  22. Patricia WilkinsonOrange, CA 928681689093478
  23. Melissa Willa, MA, BCBASan Francisco, CA 941311598007239
  24. Camille Willcutt, M.S.San Diego, CA 921231558954479
  25. Jordan WilleyLa Mesa, CA 919421740071109
  26. Claude WilliamAlta Loma, CA 917371154776847
  27. Alisha WilliamsCosta Mesa, CA 926261093488215
  28. Amanda WilliamsTwentynine Palms, CA 922771255188819
  29. Andrea WilliamsWalnut Creek, CA 945961710463518
  30. Annette WilliamsMarysville, CA 959011780456822
  31. Ashley Williams, BCBASan Diego, CA 921081902348881
  32. Calyb WilliamsAcampo, CA 952201457200982
  33. Candy Williams, BCBALong Beach, CA 908151316767445
  34. Chekesha WilliamsHayward, CA 945411811457484
  35. Chelsea WilliamsFresno, CA 937101245054253
  36. Clark WilliamsSan Diego, CA 921101487230942
  37. Colleen Williams, MA, BCBA LBAFountain Valley, CA 927081073961447
  38. Courtney Williams, BCBATemecula, CA 925911437775434
  39. Cydne WilliamsRancho Cucamonga, CA 917301700767563
  40. Daniel WilliamsCosta Mesa, CA 926261982281408
  41. Diamond WilliamsConcord, CA 945201700302346
  42. Dominique WilliamsCitrus Heights, CA 956211861075319
  43. Domonique Williams, MACarlsbad, CA 920081316536147
  44. Donyell WilliamsWoodland Hills, CA 913671386023349
  45. Elene Williams, MPARiverside, CA 925061164059945
  46. Erica Williams, M.S.Camarillo, CA 930121699125583
  47. Erin Williams, BCBARiverbank, CA 953671558714592
  48. Fernanda WilliamsTustin, CA 927821336647445
  49. Gabrielle WilliamsSan Francisco, CA 941031326616541
  50. Garyanna WilliamsRancho Cucamonga, CA 917301952231474

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.