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 145 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. Michaela Levings, PA-CLos Angeles, CA 900331649804139
  2. Aimee LevinsonLa Jolla, CA 920371447928411
  3. Sarah Levitt, PA-CIrvine, CA 926141730940693
  4. Taylor LevyFresno, CA 937211710808621
  5. Ethan Lew, PA-CPalo Alto, CA 943041871100404
  6. Jarrett Lew, PA-CSonoma, CA 954761922698406
  7. Kathleen Lew, PA-CSan Francisco, CA 941271992010110
  8. Julina LewallenRancho Cucamonga, CA 917301750987855
  9. Alyssa LewisSanta Barbara, CA 931051841950581
  10. Catherine Lewis, P.A.Woodland, CA 957761720124423
  11. Chris LewisVista, CA 920811407883127
  12. Christopher Lewis, PA-CTehachapi, CA 935611275781981
  13. David Lewis, PA-CLoma Linda, CA 923541700598661
  14. Helen Lewis, PASan Diego, CA 921281508375486
  15. Jeremiah Lewis, PA-CYuba City, CA 959911609321900
  16. Kaitlyn Lewis, PA-CFullerton, CA 928311104391713
  17. Katherine Lewis, PAFontana, CA 923351871641712
  18. Michael Lewis, PA-COrange, CA 928681942577051
  19. Steven Lewis, PACLos Angeles, CA 900141063674992
  20. Wendy Lewis, PA-CSanta Ana, CA 927051164023347
  21. Carol Leynes, PA-CBeverly Hills, CA 902111013673680
  22. Lauren Leyson, PA-CLoma Linda, CA 923541225794795
  23. Maria Leyva, PA-CSan Leandro, CA 945781023668290
  24. Eder Leyva Velazquez, PA-CModesto, CA 953551659290658
  25. Aaron Li, PASan Francisco, CA 941151558976415
  26. Angela Li, PA-CMountain View, CA 940401184315657
  27. Annie Li, PA-CSan Leandro, CA 945771497260772
  28. Clara Li, PA-CLos Angeles, CA 900051831915420
  29. Dan Ying Li, PASan Francisco, CA 941161134842479
  30. Danny LiSan Francisco, CA 941101861036972
  31. Edmund Li, PASan Francisco, CA 941331790137057
  32. Ellin Li, PA-CRedwood City, CA 940621861050692
  33. Ho Yan Li, PA-CRiverside, CA 925061952753691
  34. Jonathan Li, PA-CStanford, CA 943051255988259
  35. Kie Ying Li, PA-CRedondo Beach, CA 902771528617628
  36. Siyu Li, PA-CIrvine, CA 926121316588148
  37. Whitty LiLos Angeles, CA 900331073288858
  38. William Li, PA-CDaly City, CA 940151447735006
  39. Xiaoling LiFolsom, CA 956301598012908
  40. Chen LiangUpland, CA 917861942843511
  41. Letty Liang, PA-CStanford, CA 943051457997892
  42. Marisa Liang, PA-CGilroy, CA 950201154712933
  43. Meilin LiangStanford, CA 943051760092126
  44. Ting Mei Liang, PAStanford, CA 943051770164022
  45. Wilson LiangStanford, CA 943051659935989
  46. Xiuhua Liang, MSPA-CMonterey Park, CA 917541710175625
  47. Alvin LiaoDowney, CA 902411598419004
  48. Ellen Liao, PA-CSan Francisco, CA 941181417129156
  49. Katherine Liao, PAOakland, CA 946091063259216
  50. Sabrina LiaoIrvine, CA 926041518828292

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.