NPPES file of Aug 9, 2026

Physician Assistant in California

14,451 NPPES records list physician assistant with a practice address in California, 37 per 100,000 residents, the 41st highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 60 of 290.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363A00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 935

  1. Los Angeles935
  2. San Diego747
  3. San Francisco488
  4. Stanford480
  5. Sacramento387

Physician Assistant records in California

  1. Ziba DayyaniLos Angeles, CA 900571982945929
  2. John De Alva, PASan Diego, CA 921201972629103
  3. Steven De CaroVan Nuys, CA 914051295295392
  4. Caitlin De CastroSan Mateo, CA 944011265219075
  5. Jamie De Coster, PA-CRancho Mirage, CA 922701750666210
  6. Cathryn De Guzman, PA-CMecca, CA 922541033778576
  7. Glenn De Guzman, P.A.Norwalk, CA 906501265448294
  8. Isabel De Guzman, PA-CPasadena, CA 911051215889340
  9. Darryl De Haas, PA-CWoodland Hills, CA 913671164416939
  10. Christiana De Jesus, PA-CWalnut, CA 917891003450214
  11. April De La Cruz, P.A-CVictorville, CA 923951629012422
  12. Xochitl De La Cruz, PAParadise, CA 959691275834954
  13. Eva De La Motte Hurst, PA-CWestlake Village, CA 913611790238558
  14. Jesse De La O, PA-CSanta Clarita, CA 913551972720597
  15. Francisco De La Parra, P.A.-CMission Hills, CA 913451629472196
  16. Nayeli Diane De La PazPomona, CA 917671770127375
  17. Quenby De La Rocha, PAVentura, CA 930031851321939
  18. Saul De La Rosa, PA PHYSICIAN ASSISTALos Angeles, CA 900011669554705
  19. Natalie De La Torre, PA-CUniversal City, CA 916081578976189
  20. Eric De La Vega, PAAnaheim, CA 928011255421921
  21. James De Leon, P.A.Los Angeles, CA 900331902087745
  22. Melissa De Leon, PAMoreno Valley, CA 925551841175601
  23. Nashra De LeonAlhambra, CA 918031427898741
  24. Robert De LeonTorrance, CA 905051023507324
  25. Austin De Lozada, PA-CSanta Clara, CA 950511487454781
  26. Johanna De SilvaArcadia, CA 910071003495573
  27. Jocelyn De Witt, PA-CSan Francisco, CA 941581548394711
  28. Allison De Young, PA-CPalo Alto, CA 943041033542592
  29. Stacy De-Levi, PA-CSan Diego, CA 921081134340821
  30. Alisa Dea, PA-CStanford, CA 943051558975466
  31. Bradley DeaAlhambra, CA 918031205546991
  32. Melanie Deal, FNPConcord, CA 945201124154679
  33. Erin Dean, PHYSICIAN ASSISTANTEl Centro, CA 922431033446695
  34. Maqsud Dean, MS, PA-CYuba City, CA 959931336211333
  35. Trudie Dean, PACSan Bernardino, CA 924081245327766
  36. Erica Deangelo, PARedondo Beach, CA 902781134694946
  37. Amanda Dearinger, MS, PAAnaheim, CA 928051962926006
  38. Joann Deasy, P.A-CSan Mateo, CA 944031821105776
  39. Ellen Debarge, PA-CGoleta, CA 931111255960381
  40. Yohannes Debebe, P.A.Victorville, CA 923951932152683
  41. Matthew Debenedetto, PAFresno, CA 937101235338484
  42. Cody Debrabant, PA-CRedding, CA 960011164880449
  43. Leah Debrabant, PA-CRedding, CA 960011255799532
  44. Marshall Debruler, P.A.-CBrawley, CA 922271033441795
  45. Francisco Debs, PASanta Maria, CA 934581679355192
  46. Patryk DebskiSan Diego, CA 921111144912718
  47. Robert Decaro, PA-CHemet, CA 925431285814632
  48. Sally Decastro-Tilsen, P.A.Newport Beach, CA 926601023282019
  49. Kai Dechape, PA-CSan Francisco, CA 941111588175996
  50. Drew Decker, PA-CSanta Barbara, CA 931051053142109

Source: CMS NPPES, primary taxonomy 363A00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 41 of 51 per resident

  1. Georgia42
  2. New Mexico40
  3. Illinois39
  4. California37
  5. New Jersey37
  6. Texas36
  7. 50 states and D.C.49

Source: CMS NPPES, primary taxonomy 363A00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

75.2% of these records appear in a Medicare file, against 77.9% 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. California75.2%
  2. United States77.9%

Physician Assistant records in California, measured

  • In a Medicare file10,860 of 14,451 · 75.2% here, 77.9% nationally
  • In the CMS Doctors and Clinicians file7,218 · 49.9% here, 62.6% nationally
  • Not updated in five years or more5,775 · 40.0% here, 39.3% nationally
  • Median graduation year2018 · the 7,214 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363A00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

14,451 NPPES records list physician assistant (363A00000X) as their primary taxonomy with a practice address in California: 37 per 100,000 residents against 49 nationally (50 states and D.C.). Los Angeles has 935 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. New York15,555
  2. Texas10,999
  3. Florida10,257
  4. North Carolina9,279

States with a similar rate per 100,000

  1. New Jersey36.5
  2. Indiana35.3
  3. Illinois39.3
  4. New Mexico40.1

The largest states

  1. New York15,555
  2. Texas10,999
  3. Florida10,257
  4. North Carolina9,279
  5. Pennsylvania8,020

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.