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 271 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. Alynna OntiverosCosta Mesa, CA 926261255138038
  2. Alyssa OntiverosGrover Beach, CA 934331710511290
  3. Sydney OntiverosCarlsbad, CA 920081790360683
  4. Daisy Ontiveros-LopezSan Jose, CA 951341801269220
  5. Threza OnyemelukwePasadena, CA 911051699491993
  6. Carly OostGrover Beach, CA 934331710621636
  7. Misty Oppenheim-Leaf, M.A., B.C.B.ALong Beach, CA 908151710218177
  8. Randa OrahaLa Mesa, CA 919421962083824
  9. Elena OrahamFresno, CA 937111780172239
  10. Pablo OrantesIndio, CA 922011316791072
  11. Xiomara Orantes, BCBALong Beach, CA 908021629743794
  12. Maria Irene Ordanza, BCBASan Mateo, CA 944011992293609
  13. Eduardo Ordaz, M.S., BCBARiverside, CA 925011801406293
  14. Sophia OrdazHemet, CA 925431871060442
  15. Ashwin OrdonezWest Covina, CA 917911518532746
  16. Delsy Ordonez, MSSherman Oaks, CA 914031831729672
  17. Janelle OrdonezCypress, CA 906301437717337
  18. Megan Ordonez, RBTSacramento, CA 958191285258301
  19. Teresa Orduno Orozco, BCBAMurrieta, CA 925621497477053
  20. Tara Ordway, MA, BCBASan Diego, CA 921221750898375
  21. Juan OreConcord, CA 945211356236087
  22. Justin Orefice, MALaguna Hills, CA 926531225420235
  23. Bonnie Oregel, BCBANorthridge, CA 913241639722317
  24. Jordan OregelCosta Mesa, CA 926261407578941
  25. Katty OrellanaLos Angeles, CA 900151760236376
  26. Michelle Orellana, BCBABurbank, CA 915051689225096
  27. Rachel Sofia OrellanaCosta Mesa, CA 926261346067477
  28. Ruth OrellanaSalinas, CA 939071649748658
  29. Monica Orellana De CastanedaCosta Mesa, CA 926271518648567
  30. Jennifer Oren, BCBAStockton, CA 952071750826772
  31. Miguel Orendain Moreno, BCBAOrange, CA 928681518426089
  32. Erika Orihuela, M.S.Covina, CA 917241497044887
  33. Sarah Orique, BCBAHanford, CA 932301891281531
  34. Mari OritaSacramento, CA 958261366820425
  35. Kimberly Orliczky, BCBAIrvine, CA 926121326456757
  36. Kimberlee Orman, BCBATemecula, CA 925911205297405
  37. Alejandra OrnelasWoodland Hills, CA 913671629629308
  38. Mariah OrnelasCosta Mesa, CA 926261568338432
  39. Mayra Ornelas, BCBAGardena, CA 902481265356067
  40. Selena Ornelas-PreciadoAlameda, CA 945011285110643
  41. Samuel Orona, MS, BCBAAzusa, CA 917021437713294
  42. Javier OropezaCovina, CA 917241801654066
  43. Samantha OropezaBrentwood, CA 945131003382052
  44. Sophia OropezaWalnut Creek, CA 945961417840950
  45. Aracelly OrosTemecula, CA 925901063986602
  46. Desiree OrozcoPasadena, CA 911011386239713
  47. Jimmy OrozcoEncino, CA 914361295237253
  48. Jonathan OrozcoOrange, CA 928681306381280
  49. Laura OrozcoLong Beach, CA 908151518548882
  50. Laura OrozcoAlameda, CA 945011972076289

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.