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 136 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. Rachel La Costa, PA-CSan Diego, CA 921031831514322
  2. Angelica Labadlabad, PA-CFullerton, CA 928311043935018
  3. Connor Labella, PA-CVallejo, CA 945901033995774
  4. Elizabeth Labha, PA-CCathedral City, CA 922341477824225
  5. Jennifer Labrum, PA-CStanford, CA 943051154655504
  6. Lisa LacPomona, CA 917671912686791
  7. Melissa Lacayo, PA-CBell, CA 902011639799265
  8. Roy Lackey, PA-CSan Diego, CA 921341962169011
  9. Carlo Lacson, PA-CLos Angeles, CA 900331306600317
  10. Jana Lada, PA-COrange, CA 928681972730323
  11. Clayton Laderer, PA-CWalnut Creek, CA 945971740664184
  12. Michelle Ladwig, PAMadera, CA 936361649210048
  13. Russel Ladwig, PACMadera, CA 936361235163858
  14. Carissa Ladwig-Cox, PA-CUpland, CA 917861326781238
  15. Elizabeth Lafferty, PAHuntington Beach, CA 926461508307695
  16. Lindsay Lafrancois, PA-CMonterey, CA 939401053089045
  17. Audrey Lafraugh, PA-CSacramento, CA 958201164021481
  18. Norma LagattutaSanta Maria, CA 934541396528014
  19. Francis Lagattuta II, PA-CSanta Ana, CA 927071457725723
  20. Denise Lago, P.A.San Diego, CA 921231871641589
  21. Cynthia Lagua, PA-CLong Beach, CA 908061679050280
  22. Rebecca Lahijani, PA-CBurbank, CA 915051295370112
  23. Nang LahtawSanta Maria, CA 934541669247516
  24. Amy LaiCamarillo, CA 930121750958161
  25. Cynthia LaiSacramento, CA 958171841042462
  26. Isaac LaiWhittier, CA 906021306673504
  27. Michelle Lai, MPH, PA-CSan Francisco, CA 941231023663762
  28. Nga Lai, PA-CStanford, CA 943051780622084
  29. Thaibinh Lai-Nguyen, PA-CPalo Alto, CA 943041003686155
  30. Janie LaimLos Angeles, CA 900071508519265
  31. Catherine Lake, PA-CMerced, CA 953411528040052
  32. Michelle Laksana, PA-CFontana, CA 923361851709414
  33. Isis Laland, PA-CHealdsburg, CA 954481427373521
  34. Jordan Lalonde, PA-CSan Leandro, CA 945781063763977
  35. Adelyne Lam, PA-CPasadena, CA 911051215054374
  36. Anna Lam, PA-CSan Francisco, CA 941321982533402
  37. Carie Lam, PA-CSan Diego, CA 921231689048530
  38. Carol Lam, P.A.-C.Apple Valley, CA 923071669575957
  39. Chris Lam, PAFontana, CA 923351104985829
  40. Christopher Lam, PA-COxnard, CA 930331114144839
  41. Cindy LamSan Jose, CA 951191063298743
  42. Claudia LamSan Diego, CA 921051538858725
  43. Darren Lam, PA-CManhattan Beach, CA 902661477095875
  44. Helen Lam, PA-CPasadena, CA 911071255870614
  45. Hien LamSan Jose, CA 951241770242190
  46. Hiu Lam, PA-CCovina, CA 917231932646932
  47. Jacqueline Lam, PA-CSacramento, CA 958171518470657
  48. Jason Lam, PA-CMonterey Park, CA 917541770346371
  49. Jeffrey Lam, PA-CSunnyvale, CA 940861851022735
  50. Jessica Lam, PA-C, MSHSOrange, CA 928681083986723

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.