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 344 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. Melissa ShulmanTorrance, CA 905051114747482
  2. Jennifer ShultzVan Nuys, CA 914061427460245
  3. Tiffany Shum, MS, BCBAEncino, CA 914361851816698
  4. Jamie ShumanYucaipa, CA 923991245859784
  5. Ruby ShweRiverside, CA 925031790247971
  6. Jordan SiangcoUnion City, CA 945871457117079
  7. Jeshanah SiangioGlendale, CA 912061821556077
  8. Brandon SiaoSan Mateo, CA 944021609343706
  9. Jenny SiauwNewark, CA 945601215438163
  10. Jazmay SiaviiSacramento, CA 958261710442595
  11. Milton SibandaCosta Mesa, CA 926261881461416
  12. Jessica SiboleHemet, CA 925431750187720
  13. Sarah Siciliani, BCBASacramento, CA 958151689928616
  14. Lisa Sickman, BCBAWest Sacramento, CA 956911942632112
  15. Samantha SiclariSan Diego, CA 921071336883669
  16. Marina Sidarous, BAThousand Oaks, CA 913601316210834
  17. Nayeem Siddique, BCBAOrange, CA 928681598272205
  18. Reema Siddiqui, M.S, BCBASan Ramon, CA 945831497378798
  19. Marco Sidella, BCBABurlingame, CA 940101407331598
  20. Delia SidhuDanville, CA 945261942770862
  21. Gurleen SidhuPleasanton, CA 945881922597491
  22. Manjit SidhuSherman Oaks, CA 914231184151706
  23. Nadya SidkiCupertino, CA 950141922792043
  24. Jazmin SidwellBrentwood, CA 945131417457920
  25. Jessica Siefert, BCABASan Diego, CA 921031043555634
  26. Chelsea Siegel, BCBA, MASanta Rosa, CA 954031881957231
  27. Jonathan SiegfriedElk Grove, CA 956241740999655
  28. Daniela Sierra, BARiverside, CA 925061083363782
  29. Denice SierraGardena, CA 902481306531132
  30. Tiffany SierraFresno, CA 937201073064259
  31. Yesenia SierraPetaluma, CA 949521780242891
  32. Katherine Sierra PalaciosGardena, CA 902481639750391
  33. Michelle Sierra RamirezSan Marcos, CA 920781982190179
  34. Marina SierrasSanta Clara, CA 950501750855987
  35. Kalee SietsRiverside, CA 925011669098125
  36. Jonathan SiffermanCosta Mesa, CA 926261083585863
  37. Alyze SifuentesSunnyvale, CA 940891043187768
  38. Lauren Sigala, BCBAGardena, CA 902481497217301
  39. Sarah SigalaUpland, CA 917861942724679
  40. Maritsa Sigaran BarajasFresno, CA 937111164066619
  41. Karisa SiglarWildomar, CA 925951689525149
  42. Chasadie SiglerFresno, CA 937111346882057
  43. Aimee SigmonOntario, CA 917641154131332
  44. Kari SiguenzaRed Bluff, CA 960801053770974
  45. Merari SiguenzaAntioch, CA 945311548770209
  46. Kristin SigurdsonTemecula, CA 925901386984961
  47. Maria Silang, B.C.B.A.Anaheim, CA 928051255693560
  48. Eleanna SilbasOntario, CA 917641891514568
  49. Tisha SilbernagelAmerican Canyon, CA 945031639556509
  50. Karim SillCosta Mesa, CA 926261922964071

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.