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 261 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. Amy NguyenSan Diego, CA 921281689230492
  2. Angela Nguyen, BCBAPalo Alto, CA 943061245645431
  3. Angela NguyenAlameda, CA 945011447743166
  4. Angela NguyenOakland, CA 946061336635069
  5. Angie NguyenOakland, CA 946031588115794
  6. Ann NguyenIrvine, CA 926141205488079
  7. Annie Nguyen, M.EDOrange, CA 928671467911362
  8. April NguyenCorona, CA 928821356849822
  9. Arimi NguyenPoway, CA 920641588267728
  10. Ashley NguyenWoodland Hills, CA 913671376043570
  11. Bao Yen NguyenGarden Grove, CA 928451922721679
  12. Bich NguyenVan Nuys, CA 914061891104048
  13. Brendon NguyenMountain View, CA 940401740874361
  14. Bryan NguyenLa Jolla, CA 920921881575819
  15. Carrie NguyenSan Jose, CA 951361528537545
  16. Casandra Nguyen, BCBASanta Ana, CA 927051598030520
  17. Chau NguyenSanta Ana, CA 927051700771680
  18. Chau NguyenSan Jose, CA 951121477054807
  19. Christina NguyenVan Nuys, CA 914061831659069
  20. Christina Nguyen, BCBAWestminster, CA 926831588222905
  21. Claudia NguyenOrange, CA 928681609336049
  22. Connie Nguyen, MSFremont, CA 945381285114009
  23. Cynthia NguyenFresno, CA 937111578111639
  24. Danielle NguyenCosta Mesa, CA 926261134010051
  25. Daphne NguyenCosta Mesa, CA 926261962233320
  26. Diana NguyenHuntington Beach, CA 926471619430188
  27. Diane NguyenStockton, CA 952071962249821
  28. Diem NguyenOntario, CA 917621750052304
  29. Drew Nguyen, BCBACosta Mesa, CA 926261861754079
  30. Evon NguyenLaguna Hills, CA 926531962903526
  31. Frances NguyenSan Jose, CA 951331942794003
  32. Georgina Nguyen, BCBASan Jose, CA 951231003314642
  33. Hana NguyenHuntington Beach, CA 926471194510156
  34. Hanh Nguyen, BCBASan Jose, CA 951311114319365
  35. Hoang Nguyen, MAOntario, CA 917641417495094
  36. Hoang NguyenSan Diego, CA 921081568339133
  37. Hoang-Kim NguyenConcord, CA 945201093285520
  38. Huan NguyenSan Jose, CA 951221952959066
  39. Huong NguyenHuntington Beach, CA 926491750803821
  40. Huong Nguyen, B.C.B.A.Fountain Valley, CA 927081750867628
  41. Huynh Ngoc Ai NguyenGardena, CA 902481730047259
  42. Jane NguyenOrange, CA 928681467037697
  43. Jennifer Nguyen, MAGarden Grove, CA 928401235681677
  44. Jenny NguyenSouth Pasadena, CA 910301811356223
  45. Jenny NguyenWildomar, CA 925951629907175
  46. Jenny NguyenOrange, CA 928681326505660
  47. Jenny NguyenSanta Clara, CA 950501902398720
  48. Jenny NguyenSan Jose, CA 951281235683715
  49. Jimmy NguyenFountain Valley, CA 927081194367730
  50. Jody Nguyen, BCBAOrange, CA 928671114486685

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.