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 168 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. Stephanie Messina, PASan Francisco, CA 941151912202987
  2. Edward Messmer, P.A-CBanning, CA 922201225078769
  3. Michelle MeszarSanta Barbara, CA 931101609178623
  4. Kristen Metcalfe, PAEureka, CA 955011962690594
  5. Laura MetrauxPomona, CA 917661639095219
  6. Anna MetterKingsburg, CA 936311821899220
  7. Douglas Metz, PA-CEureka, CA 955011902036940
  8. Linda Metzger, PARedlands, CA 923731508083072
  9. Leah Meuter, PAStanford, CA 943051366147126
  10. Christian Mewes, PAEscondido, CA 920261285035808
  11. Joanne Meyer, PA-CLa Mesa, CA 919411669924023
  12. Miles Meyer, PA-CSanta Clara, CA 950511770085904
  13. Paula Meyer, PAWhittier, CA 906021255373783
  14. Sylvia Meyer, PA-CNapa, CA 945581326698473
  15. Jeffrey Meyers, PA-CClearlake, CA 954221457677841
  16. Lauren Meyerson, PA-CSan Diego, CA 921081124805536
  17. Giovana Meza, PA-CPleasanton, CA 945881104463827
  18. Karina Meza, PA-CLos Angeles, CA 900891093119208
  19. Kristina Meza, PAFullerton, CA 928351467180034
  20. Shannon MezaRialto, CA 923761942670856
  21. Sandra Mezzio, P.A.Santa Barbara, CA 931081821215096
  22. Fiona Miao, PA-CSan Francisco, CA 941081831969310
  23. Siyuan Miao, PA-CBakersfield, CA 933011235508938
  24. Helina Michael, PARiverside, CA 925051871618371
  25. Manar Michael, P.A.North Hollywood, CA 916061407800188
  26. Margaret Michael, PARedding, CA 960011457576639
  27. Monica Michael, PA-CLos Angeles, CA 900281326960865
  28. Samuel Michaels, PA CRedding, CA 960011609039965
  29. Mikayla MichalskySacramento, CA 958151841029238
  30. Vanessa Michelena Basantes, PA-CFontana, CA 923361053666297
  31. Katherine Michelfelder, PASan Jose, CA 951261669192290
  32. Sean Mickelsen, PA-CLos Alamitos, CA 907201538839246
  33. Steven Mickelson, PASonoma, CA 954761477673804
  34. Jennifer MiddlebrooksBeale Afb, CA 959031922472711
  35. Julia Middleton, PA-CValencia, CA 913551215113741
  36. Kara Middleton, PA-CLemon Grove, CA 919451578194585
  37. Andrew Midland, PA-CCamp Pendleton, CA 920551184413155
  38. Ashley Midland, PA-CNewport Beach, CA 926601255005427
  39. Joy Miedema, PA-CTemecula, CA 925911225319676
  40. Stacy Mierau, PA-CPismo Beach, CA 934491629054895
  41. Katherine Migliaccio, PAStanford, CA 943051275967549
  42. Angela Mignea, PA-CStanford, CA 943051194015495
  43. Danielle MiguelVallejo, CA 945921174395651
  44. Gary Miguel, P.A.Redding, CA 960031871522110
  45. Sarasota MihalkoEncinitas, CA 920241275362360
  46. Atessa MikanikSan Diego, CA 921301841825965
  47. Justin MikesellThousand Oaks, CA 913201649991720
  48. Kristen Mikhail, PA-CLos Angeles, CA 900481205261179
  49. Ivan Mikhailau, PAOroville, CA 959661437746427
  50. Erica Mikhli, PA-CStanford, CA 943051750685293

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.