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 205 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. Chelsea LewandowskiSacramento, CA 958151801310784
  2. Brianna Lewis, MS, BCBAPleasanton, CA 945881437695525
  3. Cannessa LewisRoseville, CA 956611902379647
  4. Danielle Lewis, BCBASanta Ana, CA 927051831557297
  5. Devante LewisCosta Mesa, CA 926261942959564
  6. Ellen Lewis, BCBA-DLompoc, CA 934361154670453
  7. Halima LewisEl Segundo, CA 902451144148602
  8. Jennafer LewisRancho Cucamonga, CA 917301053950923
  9. Kayla LewisOntario, CA 917641700627478
  10. Kelly LewisOakley, CA 945611124567417
  11. Kennedy LewisEl Segundo, CA 902451982522736
  12. Kimera LewisSacramento, CA 958251629520291
  13. Lindsey Lewis, M.A., BCBAIrvine, CA 926121790169985
  14. Malcolm LewisOakland, CA 946091821930389
  15. Megan LewisSan Bruno, CA 940661225536063
  16. Michal Lewis, M.ED BCBAVisalia, CA 932921902341506
  17. Nikkee LewisSacramento, CA 958411417215815
  18. Porschia LewisTemecula, CA 925911316696503
  19. Presley LewisGold River, CA 956701316649098
  20. Suzanne LewisDanville, CA 945261326520198
  21. Tania LewisCosta Mesa, CA 926261457184509
  22. Traci Lewis, M.S., BCBAEncino, CA 914361841531001
  23. Vakita LewisGardena, CA 902481063195576
  24. Victoria LewisIrvine, CA 926181447750245
  25. Amber Lewis RuizSalinas, CA 939071760971162
  26. Emily LewisonApple Valley, CA 923071457124513
  27. Ronald LeymasterDavis, CA 956181720575327
  28. Ashley LeyvaOntario, CA 917641003526732
  29. Brent LeyvaRiverside, CA 925061528840014
  30. Jazmine LeyvaBakersfield, CA 933091033969977
  31. Lilian Leyva, BCBAEastvale, CA 928801891591871
  32. Vanessa LeyvaTorrance, CA 905021356840177
  33. Veronica Leyva-VenturaCosta Mesa, CA 926261316596653
  34. Nicole LeznikSimi Valley, CA 930651689217473
  35. Brenda LiOakland, CA 946011639551708
  36. Danielle LiLaguna Niguel, CA 926771679254841
  37. Frances LiCosta Mesa, CA 926261588473771
  38. Henry LiSan Jose, CA 951361770061673
  39. Jade LiCosta Mesa, CA 926261255295473
  40. Jin LiRowland Heights, CA 917481285166132
  41. Jingqi LiNorco, CA 928601578230934
  42. Judy Li, BCBAAlameda, CA 945011558720292
  43. Megan LiRancho Cucamonga, CA 917301265301253
  44. Qin Peng LiOntario, CA 917641538801956
  45. Tangchen Li, BCBAPasadena, CA 911851497312102
  46. Weixing LiBrentwood, CA 945131891433454
  47. Yejiao Li, BAWestlake Village, CA 913621578073599
  48. Yue Li, M.S. BCBASherman Oaks, CA 914031285053769
  49. Yuen Yin LiElk Grove, CA 957581609456011
  50. Libna LiahutPasadena, CA 911061275407355

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.