NPPES file of Aug 9, 2026

Internal Medicine Physician in California

17,696 NPPES records list internal medicine physician with a practice address in California, 45 per 100,000 residents, the 17th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 319 of 354.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 1,423

  1. Los Angeles1,423
  2. San Francisco1,318
  3. San Diego961
  4. Sacramento601
  5. Oakland432

Internal Medicine Physician records in California

  1. Yakov Treyzon, M.D.Los Angeles, CA 900361952338493
  2. Khanh Trieu, M.D.Alhambra, CA 918011902056609
  3. Boris Trifunovic, M.D. PHDSanta Ana, CA 927041487697249
  4. Connor Triggs, D.O.Santa Barbara, CA 931051396311833
  5. Yvonne Trilling, MDWoodland Hills, CA 913671093863946
  6. Grant Trimble, PA-CCorning, CA 960211609332782
  7. Mateen Trimzi, MDSan Diego, CA 921031821025313
  8. Brian Trinh, DOChula Vista, CA 919101518545946
  9. Dung Trinh, MDMission Viejo, CA 926911306827670
  10. Hoi Trinh, MDSacramento, CA 958231093763484
  11. Khanhphong Trinh, MDLos Angeles, CA 900591871818906
  12. Kim Trinh, M.D.Fountain Valley, CA 927081356423396
  13. Son Trinh, M.D.Covina, CA 917231780634717
  14. Tien Trinh, M.D.San Jose, CA 951231881791135
  15. Tiffany Trinh, M.D.Torrance, CA 905051891007084
  16. Tuan Trinh, M.D.Fullerton, CA 928351205924040
  17. Adrian Tripp, M.D.Covina, CA 917231841619277
  18. Kavita Trivedi, M.D.San Francisco, CA 941101174539837
  19. Nayana Trivedi, M.D.La Jolla, CA 920371134161854
  20. Rajendrakumar Trivedi, MDSacramento, CA 958231285712935
  21. Kathleen Trivich, M.D.Anaheim, CA 928041871534552
  22. Jan Trobisch, M.D.Bakersfield, CA 933091548312333
  23. Paolo Troia-Cancio, M.D.Elk Grove, CA 957581538141619
  24. Brent Trompetto, MDSimi Valley, CA 930651194718254
  25. Edward Troncoso, MDRiverside, CA 925011033853106
  26. Stella Trosman, M.D.Long Beach, CA 908131992983688
  27. Stephanie Trost, M.D.Salinas, CA 939011467436576
  28. Alvin Trotter, M.D.Inglewood, CA 903011366540551
  29. Marvin Trotter, MDUkiah, CA 954821720027436
  30. Ruth Trotter, MDSeaside, CA 939551629022363
  31. Laurel Trujillo, MDLos Altos, CA 940221285791491
  32. Alan Truong, M.D.San Francisco, CA 941111679936264
  33. Andrew Truong, MDMission Viejo, CA 926911134513047
  34. Andy Truong, M.D.Fountain Valley, CA 927081174583033
  35. Hieu Truong, MDHarbor City, CA 907101881881357
  36. Huy Truong, M.D.San Bernardino, CA 924041336109149
  37. Jennifer TruongPalm Springs, CA 922621619338720
  38. John Truong, M.D.Santa Clara, CA 950511972894707
  39. Julie Truong, MD, MPHInglewood, CA 903011386210664
  40. Kenneth Tuong Truong, D.O..Union City, CA 945871376690024
  41. Kevin Truong, MD, MBAOrange, CA 928681053998989
  42. Kimberly Truong, M.D., M.P.H.San Francisco, CA 941151689092371
  43. Luan Truong, MDRiverside, CA 925051205907250
  44. Phu Truong, MDNapa, CA 945581477603272
  45. Tai Truong, MDOrange, CA 928681366902439
  46. Tiffany Truong, MDWest Hollywood, CA 900481235710005
  47. Trang Truong, M.D.Redlands, CA 923731457390502
  48. Tu Truong, M.D.San Diego, CA 921151194794263
  49. Vu Truong, MDAnaheim, CA 928011588611867
  50. Brindusa Truta, M.D.San Francisco, CA 941171558469643

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. New Jersey50
  2. New Hampshire48
  3. Minnesota46
  4. California45
  5. Florida45
  6. Ohio45
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.5% of these records appear in a Medicare file, against 78.7% 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. California79.5%
  2. United States78.7%

Internal Medicine Physician records in California, measured

  • In a Medicare file14,068 of 17,696 · 79.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file11,077 · 62.6% here, 61.4% nationally
  • Not updated in five years or more10,832 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 11,065 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

17,696 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in California: 45 per 100,000 residents against 44 nationally (50 states and D.C.). Los Angeles has 1,423 of them (8%).

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 York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300

States with a similar rate per 100,000

  1. Minnesota45.9
  2. Ohio44.8
  3. New Hampshire48.0
  4. Maine42.8

The largest states

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300
  5. Illinois7,238

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.