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 203 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. Weiwei LeiSan Jose, CA 951191750159034
  2. Ying LeiSan Leandro, CA 945781679014468
  3. Melissa Leibowitz, LCSW, BCBASanta Clarita, CA 913211669622965
  4. Jessica LeighRedlands, CA 923731972020840
  5. Lauren LeightonVista, CA 920811386150308
  6. Savannah LeightonTemecula, CA 925901710535869
  7. Clarissa LeijaLos Angeles, CA 900431437046190
  8. Obed LeijaSanta Clarita, CA 913811447771399
  9. Kelly LeitheiserSanta Maria, CA 934551700359270
  10. Chana LeizmanCosta Mesa, CA 926261184213761
  11. Labrittney LekamCosta Mesa, CA 926261659039261
  12. Amanda LelandConcord, CA 945201053914010
  13. Jazmyn LemarEl Cajon, CA 920201629902523
  14. Stephanie LemburgCerritos, CA 907031821533829
  15. Adriana LemelinFountain Valley, CA 927081356062889
  16. Christy Lemire, M.ED., BCBADublin, CA 945681538409875
  17. Darren Lemon, BCBAAzusa, CA 917021568748523
  18. Mackenzie Jo LemonSan Clemente, CA 926731164029864
  19. Emily Lemucchi, BCABASan Diego, CA 921071508283920
  20. Bryan LemusOntario, CA 917641225751498
  21. Desiree LemusPomona, CA 917661194536102
  22. Evelyn LemusTorrance, CA 905031780204560
  23. Jasmin LemusRiverside, CA 925061396693123
  24. Jeanette LemusSalinas, CA 939071992273528
  25. Maria LemusTulare, CA 932741700342086
  26. Martin Lemus, BCABAEl Centro, CA 922431316281496
  27. Natalie LemusElk Grove, CA 957581588302897
  28. Stephanie LemusCosta Mesa, CA 926261801471552
  29. Susanna LemusRancho Cucamonga, CA 917301285505552
  30. Yuliana LemusLake Elsinore, CA 925301740707231
  31. Yesenia Lemus Yepez, BACHELORSTulare, CA 932741013472851
  32. Kyrsten Lenore WilliamsonSacramento, CA 958261407491210
  33. Jocelynn Lenz, RBT-18-47882El Dorado Hills, CA 957621528548187
  34. Allison LenzoraTracy, CA 953761417458761
  35. Alberto Leon, M.A., BCBAVisalia, CA 932911194120667
  36. Alondra LeonRiverside, CA 925071194368977
  37. Alyssa LeonCorona, CA 928791841817103
  38. Amanda Leon, BCABAFountain Valley, CA 927081841557451
  39. Christian Leon, MALos Angeles, CA 900661306469028
  40. Daisy LeonLos Angeles, CA 900161720746134
  41. David LeonOrange, CA 928681083266134
  42. Dylan LeonCalexico, CA 922311063367183
  43. Elizabeth LeonCorona, CA 928791508540063
  44. Lesley LeonLos Angeles, CA 900431164139093
  45. Lisa LeonWhittier, CA 906021760973036
  46. Mario Leon, M.A.Pomona, CA 917661568970598
  47. Mayrin LeonLynwood, CA 902621942054465
  48. Reyna Leon, MSInglewood, CA 903011386295939
  49. Roque LeonSan Jose, CA 951121326673104
  50. Selena LeonLodi, CA 952401699455568

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.