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 240 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. Rehanna MendozaSanta Clara, CA 950501760975668
  2. Rosie Mendoza, AACosta Mesa, CA 926261558828186
  3. Ryan MendozaPasadena, CA 911061760218192
  4. Maria Mendoza GonzalezRiverside, CA 925031407718679
  5. Lucia Mendoza MontesGarden Grove, CA 928401063926376
  6. Sarahy Mendoza MoralesMadera, CA 936371154971232
  7. Yahir Mendoza NunezCosta Mesa, CA 926261134926058
  8. Laura Mendoza Perez, BCBASan Diego, CA 921011750984985
  9. Bernardo Mendoza-Lopez, BCBACulver City, CA 902301811385420
  10. Jessica Mendoza-Regalado, BAChula Vista, CA 919141770094807
  11. Maria Menendez-Price, BCBABakersfield, CA 933091487311536
  12. John MenesesTustin, CA 927801871318899
  13. Stacy MenesesHanford, CA 932301487142998
  14. Trista MenesesHermosa Beach, CA 902541609413939
  15. Karen MenjivarLancaster, CA 935341861024275
  16. Marisa MenjivarLong Beach, CA 908071922649003
  17. Nora Menzies, BCBASan Diego, CA 921281578103917
  18. Breanna Meo, BCABARocklin, CA 956771295172633
  19. Janki Merai, BCBAGardena, CA 902481003427204
  20. Fernando Meraz CoronadoSan Diego, CA 921081114636883
  21. Carolyn MercadoWildomar, CA 925951710777214
  22. Casandra MercadoCosta Mesa, CA 926261528928199
  23. Clarissa MercadoNorthridge, CA 913241497458970
  24. Elen Joie Mercado, MS, BCBAWest Covina, CA 917901255873808
  25. Selena MercadoWalnut Park, CA 902551669046397
  26. Stephanie MercadoLos Angeles, CA 900021144100991
  27. Valerie Mercado, M.S, BCBAConcord, CA 945201619468014
  28. Yesenia MercadoSacramento, CA 958341407345085
  29. Luz Mercado ValenciaOxnard, CA 930301891500203
  30. Brittany Merced, MSWhittier, CA 906051801362074
  31. Emily Mercedes WaltersCosta Mesa, CA 926261811513518
  32. Drew Mercer, M.ED., BCBA, LBATemecula, CA 925901699211771
  33. Rebecca MercerEncinitas, CA 920241124590427
  34. Kelsey Merchant, BCBAEncino, CA 913161477932580
  35. Deanna Mercier, M.ED., BCBABerkeley, CA 947101326301268
  36. Erica Mercier, BCBAMurrieta, CA 925631689288466
  37. Al Meredith-KlughPoway, CA 920641912445040
  38. Morgen MerickelOxnard, CA 930361285211524
  39. Ivon MeridaRiverside, CA 925061659255339
  40. Rebecca MeridaRedondo Beach, CA 902771053071019
  41. Oliver Merida MirandaEncinco, CA 913161619535358
  42. Luis Merlos, BCBACulver City, CA 902301881119808
  43. Shannon MerrellIrvine, CA 926121447751219
  44. Kamryn MerrillOrange, CA 928681508610007
  45. Alana MerrittEl Segundo, CA 902451740109388
  46. Mary Jeanne Merritt, BCBASan Jose, CA 951281528648417
  47. Meghan Merwin, M.S., BCBALos Gatos, CA 950301457133159
  48. Jacqueline MeryHermosa Beach, CA 902541073981940
  49. Juan Mesa, M.S., M.S., M.A.Oakland, CA 946011053737221
  50. Alyssa MeshachStockton, CA 952071639724172

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.