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 355 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. Lizandra SteinerVisalia, CA 932911326750191
  2. Shayna SteinerOxnard, CA 930331396631537
  3. Jasmin StelzmannAlameda, CA 945011447719414
  4. Bridgette StemplescaCosta Mesa, CA 926261629703244
  5. Liana StepanyanGlendale, CA 912041356689558
  6. Corey StephensLaguna Hills, CA 926531699316364
  7. Gwen Stephens, MASan Jose, CA 951171578074852
  8. Kali StephensCosta Mesa, CA 926261902600141
  9. Kimberley StephensLos Angeles, CA 900031366773996
  10. Michael Stephens, BCBAFresno, CA 937111164844924
  11. Erin Sterling, M.S., BCBAVisalia, CA 932921184080517
  12. Melissa SterlingIrvine, CA 926141265032064
  13. Alexander SternBeverly Hills, CA 902111679326649
  14. Piper SternerGardena, CA 902481962360479
  15. Ashley StevensOrange, CA 928651003380361
  16. Jena Stevens, BCBACosta Mesa, CA 926261831700616
  17. Jonathan StevensVictorville, CA 923921780101006
  18. Lindy Stevens, RBTSan Diego, CA 921081962989616
  19. Madison StevensLos Angeles, CA 900431073351193
  20. Mikesha StevensRiverside, CA 925041255727657
  21. Quinn StevensCosta Mesa, CA 926261578450680
  22. Christina-Marie Stevenson, BCBAIrvine, CA 926141740840685
  23. Michael StevensonSan Jose, CA 951261568768984
  24. Myasia StevensonMonrovia, CA 910161134971096
  25. Aaron StewartSanta Maria, CA 934551265175897
  26. Brian Stewart, BCBAThousand Oaks, CA 913601134493778
  27. Celia StewartBakersfield, CA 933011942768098
  28. Chloe StewartMission Viejo, CA 926921174011514
  29. Daryl StewartWalnut Creek, CA 945971043502396
  30. Justin StewartSan Diego, CA 921281689156432
  31. Katherine Stewart, BCBAFontana, CA 923361457883233
  32. Lorena Stewart, BCBASan Diego, CA 921231407364367
  33. Madylin StewartRocklin, CA 957651619515038
  34. Regina StewartEncino, CA 914361720595317
  35. Sarde Stewart, M.SVictorville, CA 923921063024206
  36. Staci StewartAuburn, CA 956031043702749
  37. Sofie StiefelStudio City, CA 916041992567648
  38. Jody Stiegemeyer, BCBAValencia, CA 913551114288263
  39. Christine Stiehl, MA, BCBA, LBAStockton, CA 952041235450156
  40. Jacob StierAnaheim, CA 928051932604873
  41. Monica StiffRiverside, CA 925031427474626
  42. Jordan StifleElk Grove, CA 956241770104721
  43. Cydney StilesPoway, CA 920641093318016
  44. Karen StilwellConcord, CA 945201740956838
  45. Lidiya StimsonLos Angeles, CA 900151710740394
  46. Taryn Stine, BCBAWalnut Creek, CA 945981760966063
  47. Kayla StinsonDublin, CA 945681437798535
  48. Brittany Stipes, BCBASan Clemente, CA 926731760138846
  49. Amy Stirman, M.S., BCBAMountain View, CA 940401306132428
  50. Tori StittCorona, CA 928791699323626

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.