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 191 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. Rand KittaniPoway, CA 920641407325012
  2. Nicole KjellanderTorrance, CA 905031124572698
  3. Jennifer KladourisOrange, CA 928681184188963
  4. Noga Klain, BCBASanta Monica, CA 904021275887762
  5. Sandra KlassenWoodland Hills, CA 913671952804411
  6. Lorena Klear, BCBA,BA,M.A.Wildomar, CA 925951629614672
  7. Samantha Klebanow, BCBAIrvine, CA 926061134559966
  8. Karim KleckleyPasadena, CA 911011679872667
  9. Sean KleimanSan Francisco, CA 941311205254919
  10. David KleinWoodland Hills, CA 913641104300748
  11. Evan Klein, BCBACommerce, CA 900401952098865
  12. Julia Klein, BCBATracy, CA 953771801371760
  13. Mallory Klein, M.ED., BCBABakersfield, CA 933091447683974
  14. McKenna KleinSan Diego, CA 921081558005306
  15. Katie Kleiner, BEHAVIOR ANALYSTTemecula, CA 925921952793259
  16. Ariella Kleinsmith, MS, BCBAThousand Oaks, CA 913601851084560
  17. Jodi KleweOakland, CA 946061336626951
  18. Sheila Klick, BCBASeal Beach, CA 907401386232098
  19. Sharla KliebensteinSan Diego, CA 921281679089692
  20. Laura Kliger-EnkinOakland, CA 946061811436025
  21. Emily KlineRohnert Park, CA 949281174989503
  22. Hannah KlineOakland, CA 946061326535568
  23. Rima Kliore-Frederickson, MS, BCBASan Diego, CA 921031801153903
  24. Brad Klipper, MS BCBAMurrieta, CA 925621124623590
  25. John Klock, M.A., BCBARiverside, CA 925011871080648
  26. Aliza Klos-Young, BCBAMurrieta, CA 925621003280967
  27. Julia KluchnikovEncino, CA 914361386096949
  28. Sarah Knapp, BCBAHayward, CA 945411285205369
  29. Adrianna KneefelVictorville, CA 923921982043063
  30. Amanda Knepp, BCBAAnaheim, CA 928011386194702
  31. Taylor KnerrTustin, CA 927801568224988
  32. Catherine KnightSacramento, CA 958261770971673
  33. David KnightSan Diego, CA 921111689367211
  34. Dustin Knight, MSEncino, CA 914361558825828
  35. Makahla KnightSan Leandro, CA 945771275329310
  36. Megan KnightBakersfield, CA 933131104320340
  37. Charissa Knihtila, BCBACosta Mesa, CA 926261144452277
  38. Kelly KnowlesBerkeley, CA 947041700303187
  39. Lisa KnowlesLos Gatos, CA 950331063887933
  40. Salisha KnoxCosta Mesa, CA 926261689466898
  41. Nicole Knudtson, BCBAMonrovia, CA 910161881952620
  42. Jordan KnutzenRancho Cucamonga, CA 917301477482289
  43. Jenny KoSan Luis Obispo, CA 934011801484118
  44. Aaron Koay, MS, BCBAArcadia, CA 910061922630938
  45. Vissy Kobari WrightThousand Oaks, CA 913601003359902
  46. Mariko Kobayashi, BCBATorrance, CA 905031407512346
  47. Khai KoberBelmont, CA 940021780399139
  48. Van Kober, BCBACampbell, CA 950081023318482
  49. Jared KobliskaOakland, CA 946061356847354
  50. David Koch, BCBASan Diego, CA 921281114383650

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.