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 114 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. Ton Nu Thien Kim Huyen, PA-CAnaheim, CA 928021932051422
  2. Alice Huynh, PA-CSanta Rosa, CA 954031992461834
  3. Amanda Huynh, PA-CStanford, CA 943051013661248
  4. Andy Huynh, PASan Diego, CA 921011508682451
  5. Brian HuynhAliso Viejo, CA 926561215745138
  6. Catherine Huynh, PA-CPomona, CA 917661285123653
  7. Charles Huynh, PAEscondido, CA 920261265960165
  8. Christine HuynhMonterey Park, CA 917541386365344
  9. Constance Huynh, PA-CStanford, CA 943051528343555
  10. Cynthia Huynh, PASunnyvale, CA 940851770473126
  11. Ha Huynh, PA-COrange, CA 928681588229991
  12. Hang Huynh, PA-CLos Angeles, CA 900111144811761
  13. Irving Huynh, PA-CLos Angeles, CA 900891467639138
  14. Julie Huynh, PA-COrange, CA 928661043728884
  15. Karen Huynh, PA-CFullerton, CA 928351194402628
  16. Katie HuynhHuntington Beach, CA 926471649125030
  17. Kiet Huynh, PASan Diego, CA 921201972629137
  18. Lan Huynh, PA-CSan Jose, CA 951231134477185
  19. Mary Isabelle Colene HuynhMountain View, CA 940401386278547
  20. Maxie Huynh, PA-CGlendale, CA 912011811393762
  21. Michelle Huynh, PAOrange, CA 928691255703674
  22. Naomi HuynhPomona, CA 917661689419061
  23. Thanh-Tam HuynhNewport Beach, CA 926631164998803
  24. Tiffany Huynh, PA-CDaly City, CA 940151366151375
  25. Vinh HuynhChino, CA 917101679403711
  26. Xuan Huynh, PAClaremont, CA 917111285062901
  27. Yen Huynh, MPH, PA-CSan Jose, CA 951271700318979
  28. Kimberly Hwa, PA-CSan Jose, CA 951281366748881
  29. Becky HwangSan Francisco, CA 941431871012856
  30. Connie Hwang, PAOxnard, CA 930301942764386
  31. Esther HwangChino Hills, CA 917091851696595
  32. Jim Hwang, PA-CStanford, CA 943051093592024
  33. Lilian Hwang, PA-CDuarte, CA 910101083482137
  34. Linda Hwang, PA-CAnaheim, CA 928061912246984
  35. Nathan HwangTustin, CA 927801831964758
  36. Ruth Hwang, MS, PA-CFullerton, CA 928351821332156
  37. Tiffany Hwang, PA-CColton, CA 923241013641919
  38. Nena Hy-Boyer, P.A.-CSan Carlos, CA 940701255662326
  39. Sheri Hyatt, PAFresno, CA 937201770624462
  40. Aleya Hyderi, PA-CStanford, CA 943051083040794
  41. Christopher Hydock, PA-CPleasanton, CA 945881295909232
  42. Tracy Hydorn, PA-CMarina, CA 939331134118573
  43. Michelle Hyland, PASan Francisco, CA 941431164072922
  44. Jenna Hynes, PA-CColton, CA 923241942719273
  45. Thomas Hynes, PAOroville, CA 959661114649464
  46. Julia Hyry, PA-CRedding, CA 960011164015764
  47. Jane Hysen, PAOakland, CA 946091538133731
  48. Sherry Hytrek, PA-CLong Beach, CA 908061265648372
  49. Margaret Hyzy, PA-CSan Francisco, CA 941151891190385
  50. Doris Iaroli, PAConcord, CA 945201548310493

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.