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 204 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. Stephanie LeonRichmond, CA 948041073096574
  2. Violeta LeonWoodland Hills, CA 913671811630403
  3. Maribel Leon - Rubalcava, BCBASan Diego, CA 921031538404587
  4. Laura Leon Franco, MA, BCBASan Jose, CA 951261720478506
  5. Selina Leon-SegoviaCorona, CA 928791760028179
  6. Crystal Leonard, PSYD, BCBARancho Cucamonga, CA 917301932744877
  7. Kait Leonard, BCBAEncino, CA 913161962758516
  8. Kenneth LeonardSan Bernardino, CA 924081235958125
  9. Mark LeonardSanta Ana, CA 927071669803086
  10. Megan LeonardSan Ramon, CA 945831184220998
  11. Michael Leonard, BCBAPalo Alto, CA 943061306249594
  12. Tamika LeonardWoodland Hills, CA 913671497414247
  13. Mahara LeongSacramento, CA 958231033483425
  14. Juliana Leonhart, BCBA, LBARocklin, CA 957651003317033
  15. Janet Leos7148810427, CA 927071750997946
  16. Ana LepeTorrance, CA 905051750131355
  17. Daniela LepeCosta Mesa, CA 926261003788050
  18. Jeanette Lepe, MSPalmdale, CA 935511205477494
  19. Chris LepineValencia, CA 913551942634183
  20. Matthew LepireNorthridge, CA 913241326612490
  21. Danielle LeporeAnaheim, CA 928051326604000
  22. Ashley LeprineSan Carlos, CA 940701861899528
  23. Sara Leptich M.s., BcbaCamarillo, CA 930101669009429
  24. Karla LermaEl Segundo, CA 902451740108083
  25. Michael LeroyPalo Alto, CA 943031710501473
  26. Jessique LespadePismo Beach, CA 934491457171720
  27. Quitall LesterAlameda, CA 945011891251112
  28. Maranda LeszkiewiczVallejo, CA 945901033661186
  29. Katherine LetienGardena, CA 902481871378703
  30. Alexus LettGardena, CA 902481518768928
  31. Ryan Lettice, BCBATemecula, CA 925911194106906
  32. Lindsay Lettow, BCBASanta Barbara, CA 931101891336905
  33. Janet LeungHermosa Beach, CA 902541497328181
  34. Karla Leung, BCBAStockton, CA 952191376043497
  35. Lauren LeungSanta Ana, CA 927051497519466
  36. Yu Ting Leung, BCBANorth Hollywood, CA 916011114313483
  37. Annemarie LeuschenFolsom, CA 956301326519703
  38. Brooke Leuzinger, MA, BCBASan Francisco, CA 941031043737604
  39. Adam LevEl Segundo, CA 902451821918798
  40. William LevenbergLos Angeles, CA 900191376365528
  41. Ashley Leveroni, BCBASan Jose, CA 951121134678204
  42. Shelby LevestonMoreno Valley, CA 925531821701418
  43. Andrew LevineOak Park, CA 913771457127573
  44. Hannah LevineOrange, CA 928681659096022
  45. Khalilah LevineRancho Cucamonga, CA 917301790653517
  46. Mark Levine, M.S.San Rafael, CA 949031760610653
  47. Sharon-Jean LevittWest Covina, CA 917911598226177
  48. Jessica LevyWoodland Hills, CA 913671003791831
  49. Stefanie LevyCorona, CA 928791699212332
  50. Anna LewandowskaFairfield, CA 945331114401676

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.