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 365 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. Abbie ThileniusSan Diego, CA 921081215552229
  2. Abigail ThomasSan Mateo, CA 944011770022337
  3. Amaree ThomasRiverside, CA 925031386439412
  4. Arielle ThomasDublin, CA 945681306478292
  5. Astani ThomasHawthorne, CA 902501003550500
  6. Charles Thomas, ASSOIATEInglewood, CA 903011154652337
  7. Christopher Thomas, BCBASan Jose, CA 951281992169973
  8. Crystal ThomasBakersfield, CA 933091578162178
  9. D'Anthony ThomasCosta, CA 927071093604449
  10. Demetra Thomas, MSCSan Diego, CA 921231558148239
  11. Devionn ThomasPalmdale, CA 935511114715521
  12. Diane ThomasAlameda, CA 945011497229140
  13. Elizabeth ThomasLong Beach, CA 908071013620012
  14. Jacob Thomas, MA, BCBAOakland, CA 946101639672876
  15. Jamari ThomasOakland, CA 946031083183990
  16. Jennifer ThomasOxnard, CA 930351932589595
  17. John ThomasEncino, CA 914361891173381
  18. Justina Thomas, BCBA, LBAHayward, CA 945411982021010
  19. Jyssica ThomasConcord, CA 945201912583279
  20. Kali ThomasCulver City, CA 902301639569650
  21. Kayla Thomas, MASacramento, CA 958271487863122
  22. Lindsey Thomas, BCBASanta Ana, CA 927041477928802
  23. Lisa ThomasWoodland Hills, CA 913671760951719
  24. Madison ThomasCosta Mesa, CA 926261508720178
  25. Marshell ThomasOakland, CA 946011346718137
  26. Meghan ThomasSanta Clara, CA 950541215438924
  27. Melina ThomasBeverly Hills, CA 902121790365468
  28. Melissa ThomasOrange, CA 928681558006163
  29. Melvin Thomas, BCBABakersfield, CA 933111992158000
  30. Michael ThomasBellflower, CA 907061578004628
  31. Michaela ThomasMoreno Valley, CA 925571518501196
  32. Mychelle ThomasConcord, CA 945201124869300
  33. Nadereh Thomas, BCBAEncino, CA 913161376955237
  34. Raidice ThomasCosta Mesa, CA 926261124755111
  35. Sacha ThomasSacramento, CA 958331841794161
  36. Sarah ThomasBakersfield, CA 933011659674539
  37. Seth ThomasSan Mateo, CA 944011821457961
  38. Shannon Thomas, PHDSan Diego, CA 921081447768668
  39. Taneisha ThomasRedlands, CA 923731205310505
  40. Tracie ThomasVisalia, CA 932771891262671
  41. Woodrow ThomasFontana, CA 923371760947477
  42. Brandon Thomas-BlackmanSherman Oaks, CA 914231881407070
  43. Aaron ThompsonSacramento, CA 958341447967484
  44. Alexus ThompsonRiverside, CA 925031053289496
  45. Allison Thompson, BCBASanta Ana, CA 927051235642737
  46. Amanda ThompsonSanta Maria, CA 934541053765131
  47. Atiyyah ThompsonSusanville, CA 961301972076974
  48. Brenna ThompsonSacramento, CA 958261669945820
  49. Caroline Thompson, BCBASanta Ana, CA 927051760755300
  50. Chantell ThompsonWoodland Hills, CA 913671821793985

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.