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 69 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. Vanessia DudleyVallejo, CA 945921811600893
  2. Kathryn DudoroffConcord, CA 945211063050870
  3. Kellie Dudy, PA-CFresno, CA 937201740419621
  4. Gina Duel, MS PACNewport Beach, CA 926631912985979
  5. Roseanna Duenas, P.A.-CSebastopol, CA 954721417488073
  6. Xavier Duenas, PAPomona, CA 917661457193716
  7. Nancy Duenas-MineraOakland, CA 946091194688408
  8. Omar Duenes, PABurbank, CA 915051255483632
  9. Rosanna Duester, PA-CPalo Alto, CA 943041225280159
  10. Erin Duffy, PA-CCapitola, CA 950101518536119
  11. Laura Duffy, PASan Diego, CA 921201164570073
  12. Megan Duffy, PA-CSan Pedro, CA 907321952975799
  13. Michael Duffy, PAOakland, CA 946111801839188
  14. David Dufour, PAEncino, CA 914361720198385
  15. Shannon Dugan, P.A.Salinas, CA 939011578868329
  16. Ulemj Dugarnyam, PAFountain Valley, CA 927081487423471
  17. Yana Dugenny, P.AStanford, CA 943051578949004
  18. Matthew Duggan, PA-CTravis Afb, CA 945351538729132
  19. Tobin Duisenberg, PA-CCorning, CA 960211417298225
  20. Cynthia Duke, PA-CClovis, CA 936111841360849
  21. Patrick Duke, PA-CWest Covina, CA 917901619990447
  22. Dana DukesWestlake Village, CA 913621134047970
  23. Almira Dukovic, PA-CNewport Beach, CA 926601376884338
  24. Jasmina Dukovic, PA-CDowney, CA 902411457021677
  25. Michael Dulay, PA-CColton, CA 923241245872282
  26. Danielle Dullinger, P.A.Murrieta, CA 925621053542837
  27. Peter DumasColton, CA 923241275966095
  28. Jainaba Dumbuya, PASan Jose, CA 951231558143776
  29. Abigail Dumont, PA-CBurlingame, CA 940101518584036
  30. Amanda Duncan, PA-CGlendora, CA 917401346672680
  31. Andrew Duncan, P.A.-CSanta Barbara, CA 931031689618522
  32. Brylee Duncan, PASanta Clara, CA 950541750164463
  33. Shelbi Duncan, PA-CBeale Afb, CA 959031346866290
  34. Stacey Duncan, PA-CLos Angeles, CA 900591144363748
  35. Susan Dundas, PA-CSacramento, CA 958111003253824
  36. Jonathan Dunham, PA-COakland, CA 946091225561095
  37. Allison Dunivan, PA-CSalinas, CA 939011972022192
  38. Alysse Dunn, PA-CMartinez, CA 945531992042568
  39. Kellen DunnSan Rafael, CA 949011407654767
  40. Kelly Dunn, PA-CCrescent City, CA 955311477412815
  41. Sean Dunn, PA-CSan Francisco, CA 941111770865669
  42. An DuongVallejo, CA 945921841903929
  43. Carolyn DuongVallejo, CA 945921346022167
  44. Jenny Duong, PASunnyvale, CA 940861083460307
  45. Lili Duong, PA-CCarmichael, CA 956081952123648
  46. Mary Duong, PACLos Angeles, CA 900641386607638
  47. Thao Duong, PAIrvine, CA 926021326326570
  48. Trisha Duong, PAUpland, CA 917861225794126
  49. Tuan Duong, PA-CSan Francisco, CA 941331861894370
  50. Vincent DuongUkiah, CA 954821396458469

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.