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 167 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. Natalia Mendez, PA-COceanside, CA 920581972139632
  2. Ricardo Mendez, PA-CNapa, CA 945591033644174
  3. Monica Mendiola, PA-CCitrus Heights, CA 956101619598489
  4. Renee Mendonsa, P.A.Redding, CA 960011407016637
  5. Alexis MendozaGardena, CA 902471427757244
  6. Alisa Mendoza, PASan Bernardino, CA 924041174412910
  7. Alyssa Mendoza, PA-CCarmichael, CA 956081083508006
  8. Cherry Mendoza, PA-CAnaheim, CA 928071225179310
  9. Daniel Mendoza, PA-CTorrance, CA 905021659022200
  10. Deisy Mendoza, PALos Angeles, CA 900421972768927
  11. Jose MendozaInglewood, CA 903011053561688
  12. Justin Mendoza, PAReseda, CA 913351275347973
  13. Michael Mendoza, PA-CMission Hills, CA 913451720209661
  14. Rachel Mendoza, PA-CLompoc, CA 934361316196322
  15. Roberto Mendoza, P.A.Downey, CA 902421669403150
  16. Tiffany Mendoza, PA-CRedlands, CA 923731710543194
  17. Vanessa Mendoza, PA-CPomona, CA 917661508355546
  18. Vanessa MendozaOrange, CA 928681154029098
  19. Vanessa Mendoza, PA-CHayward, CA 945451194502682
  20. Maria Mendoza-Garcia, PA-CYuba City, CA 959911548980170
  21. Delia Mendoza-Zesati, PABellflower, CA 907061093831240
  22. Vincent Meng, PA-CSan Jose, CA 951131346925963
  23. Nancy Menges, P.A.-C.Simi Valley, CA 930651992175434
  24. Athenna MenjivarStanford, CA 943051598545352
  25. Chrystal Mensah-Wiredu, PA-CHanford, CA 932301265157820
  26. William Mensinger, P.A.Hayward, CA 945451629092135
  27. Hannah Mentjes, PA-CStanford, CA 943051437706652
  28. Edgar Mercado, PA-CFresno, CA 937211194380253
  29. Mayalen MercadoSanta Ana, CA 927011750092052
  30. Olga Mercado, PASacramento, CA 958251376601286
  31. Oscar MercadoApple Valley, CA 923071245196591
  32. Karisa Mercer, PABakersfield, CA 933081447868765
  33. Robin Mercer, PA-CStanford, CA 943051346592227
  34. Joe Merchan, PA-CRocklin, CA 957651245296144
  35. Erin Merchant, P.A.-C.Pomona, CA 917671619089117
  36. Kristin Mercier, PAWeed, CA 960941689436636
  37. Ashley Mergelmeyer, PA-CMission Viejo, CA 926911902397219
  38. Anthony Merino, P.A.-CPorterville, CA 932571821009150
  39. Scott Merlo, PASanta Cruz, CA 950651952479644
  40. Victoria Merrell, P.A.Stanford, CA 943051073797395
  41. Heather Merrick, PASanta Barbara, CA 931051528157138
  42. Brooke Merrin, P.A.Santa Clara, CA 950541497121776
  43. Annelise Merriner, PA-CRancho Santa Margarita, CA 926881811238777
  44. Hannah Mertens, PA-CVacaville, CA 956871386825917
  45. Emir MerzeciRancho Mirage, CA 922701669331252
  46. Marady Mesa, PA-C, MPHOxnard, CA 930331134902299
  47. Melanie MesagnoSanta Rosa, CA 954071831924828
  48. Elham MesriBeverly Hills, CA 902121033387030
  49. Nicole MesrianiWoodland Hills, CA 913641376188060
  50. Stephanie Messervy, PA-COakland, CA 946091477826329

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.