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 133 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. Dennis Huynh, MDOakland, CA 946111306924196
  2. Donovan HuynhSacramento, CA 958161114314754
  3. Dung Huynh, MDSan Diego, CA 921201194892117
  4. Hong Huynh, M.D.San Diego, CA 921081770514192
  5. Jack Huynh, MDSan Francisco, CA 941331548334543
  6. Linda Huynh, D.O.San Diego, CA 921231407295033
  7. Minh Huynh, M.D.San Jose, CA 951121063437309
  8. Nam Huynh, MDFresno, CA 937011669121232
  9. Tam Huynh, M.D.Northridge, CA 913241487802674
  10. Thao Huynh, MDSacramento, CA 958231144309873
  11. Thatcher Huynh, DOVentura, CA 930031730743022
  12. Thu Thuy Huynh, M.D.Westminster, CA 926831740343367
  13. Thuy Huynh, MDMilpitas, CA 950351982711495
  14. Uyen-Chi Huynh, M.D.Walnut Creek, CA 945951205271335
  15. Van Huynh, MDOakland, CA 946111700964582
  16. Wally Huynh, MDVisalia, CA 932911184895989
  17. Michael Hwa, MDSan Jose, CA 951301184806325
  18. Andrew HwangRiverside, CA 925011114458809
  19. Andrew Hwang, MDCampbell, CA 950081679650535
  20. Cliff Hwang, MDFontana, CA 923351336216266
  21. Daniel Hwang, M.D.Daly City, CA 940151871683532
  22. David Hwang, M.D.Anaheim, CA 928041013063833
  23. Jason Hwang, M.D.Loma Linda, CA 923541457511396
  24. Jason Hwang, M.D.Sunnyvale, CA 940861669490926
  25. Jenny Hwang, M.D.Los Angeles, CA 900331578548764
  26. Jimee Hwang, M.D.San Francisco, CA 941431689617581
  27. Kalena Hwang, M.D.Irvine, CA 926041225088164
  28. Kuo Hwang, DOSacramento, CA 958251336227016
  29. Michael Hwang, D.O.San Jose, CA 951281639600562
  30. Thomas Hwang, M.D.Tustin, CA 927801124039722
  31. Wei Chan Hwang, M.D.Fontana, CA 923351104976141
  32. Yong Hwang, M.D.Wasco, CA 932801609927318
  33. Julie Hwynn, M.D.Garden Grove, CA 928431780682401
  34. Shazia Hyder, MDRedlands, CA 923741225206253
  35. Jennifer Hyer, D.O.Mission Hills, CA 913451770567711
  36. Mark Hyman, MDLos Angeles, CA 900251598784365
  37. Christopher Hynum, M.D.Camarillo, CA 930101588722573
  38. Daniel Hyslop, M.D.Los Angeles, CA 900451770658270
  39. Victor Iacovoni, M.D.Sonoma, CA 954761619985348
  40. Daciana Iancu, MDSebastopol, CA 954721265582084
  41. Patricia Ibarra, M.D.Riverside, CA 925051164665949
  42. Rodolfo Ibarra, MDLong Beach, CA 908081376566323
  43. Adel IbrahimSacramento, CA 958231609314905
  44. Freddie Ibrahim, M.D.La Verne, CA 917501598960254
  45. Ihab Ibrahim, MDSan Luis Obispo, CA 934051417062712
  46. Ireny Ibrahim, MDColton, CA 923241811944598
  47. Karim Ibrahim, MDWest Hollywood, CA 900481740978709
  48. Maryanne Ibrahim, M.D.Fountain Valley, CA 927081053846790
  49. Michael Ibrahim, MDTorrance, CA 905021528565157
  50. Nagi Ibrahim, MDOceanside, CA 920541174509756

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.