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 146 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. Joselin Guillen GonzalesEncino, CA 913161528701133
  2. Kelli GuilloryStanton, CA 906801609427400
  3. Chencia GuirgisOntario, CA 917611700487287
  4. Amora GuirgiusPomona, CA 917681932837630
  5. Carine GuirguisVan Nuys, CA 914061346986742
  6. Hemalatha GujjariRancho Palos Verdes, CA 902751013830165
  7. Mark Gulegin, MAEl Dorado Hills, CA 957621780166751
  8. Jon GullettCosta Mesa, CA 926261093381048
  9. Leah GulliksenElk Grove, CA 956241144787524
  10. Nathania GultomCosta Mesa, CA 926261689556011
  11. Katie Gumberg, MSSanta Monica, CA 904011104496884
  12. Veronica Gunawan, B.S.Concord, CA 945201710385711
  13. Ashleykaith GundayaoCosta Mesa, CA 926261568046142
  14. Kelsey Gundestrup, BCBASacramento, CA 958251841709490
  15. Lauren GundrySan Ramon, CA 945831043087984
  16. Michelle Gunner, RBTSan Diego, CA 921231194290833
  17. Sivakumari Guntupalli, BCBACupertino, CA 950141447634803
  18. Beiying GuoUpland, CA 917861912891953
  19. Haoyang GuoGlendale, CA 912141184317513
  20. Qiyan GuoMarina, CA 939331578444584
  21. Richard Shuang Feng Guo, BCBAWest Covina, CA 917901831863521
  22. Yanhong GuoSan Ramon, CA 945831700245347
  23. Meena GuptaLaguna Hills, CA 926531770876930
  24. Vanshika GuptaSan Francisco, CA 941031720788003
  25. Johanna GurSan Mateo, CA 944011205372521
  26. Rajneet Gurai, BCBAElk Grove, CA 956241043713761
  27. Jocabed Gurrola, MS, BCBAAzusa, CA 917021093187213
  28. Sierra GuruleSan Diego, CA 921011114627619
  29. Liza GuslevaCarlsbad, CA 920081841955093
  30. Sandra GustafsonRancho Cucamonga, CA 917301306775663
  31. Julie Guthrie, M.S., BCBALong Beach, CA 908071528839875
  32. Saraanne GuthrieSan Diego, CA 921081629698790
  33. Adrian GutierrezDaly City, CA 940151841064300
  34. Adriana GutierrezRiverside, CA 925061841963105
  35. Alberto GutierrezRancho Cordova, CA 956701073285540
  36. Alejandra GutierrezOntario, CA 917611780101329
  37. Andres GutierrezMission Viejo, CA 926911649787003
  38. Anthony GutierrezSan Jose, CA 951121073352894
  39. Antonio GutierrezCovina, CA 917241457908071
  40. Arturo GutierrezEncino, CA 913161598244451
  41. Cassandra GutierrezOntario, CA 917641225518681
  42. Cassandra Gutierrez, BA FINE ARTSWalnut Creek, CA 945961275877011
  43. Christian GutierrezLos Angeles, CA 900151467393363
  44. Cynthia GutierrezWoodland Hills, CA 913671558928234
  45. Cynthia GutierrezCovina, CA 917241609648005
  46. Dakota Gutierrez, BCBAGoleta, CA 931171912749003
  47. Damaris GutierrezSacramento, CA 958251295196012
  48. David GutierrezSan Diego, CA 921231770065682
  49. Deandra GutierrezClovis, CA 936111275034910
  50. Demarie GutierrezStockton, CA 952071285211151

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.