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 58 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. Allen Chiu, MDHayward, CA 945451316025166
  2. David Chiu, MDBellflower, CA 907061194892075
  3. Frank Chiu, MDSeaside, CA 939551740202670
  4. Jennifer Chiu, M.D.Hawthorne, CA 902501962528430
  5. Katharine Chiu, M.D.San Diego, CA 921031518163088
  6. Kevin Chiu, MDSacramento, CA 958171114616760
  7. Michelle Chiu, MDStanford, CA 943051205396645
  8. Peter Chiu, M.D.San Gabriel, CA 917761740338151
  9. Rex Chiu, MDMenlo Park, CA 940251366580011
  10. Vincent Chiu, PHD MDAnaheim, CA 928041942309703
  11. Ahra Cho, M.D.Los Angeles, CA 900061902051659
  12. Edward Cho, MDLos Angeles, CA 900331841759743
  13. Elizabeth Cho, M.D. MPHOrange, CA 928681669900221
  14. Hyun Cho, M.D.Palm Desert, CA 922111073658530
  15. Jessica Cho, M.D.Los Angeles, CA 900671023162039
  16. John Cho, M.D.Sylmar, CA 913421063541654
  17. Jonathan Cho, M.D.Chino, CA 917101235175936
  18. Jonathan Cho, MD, PHDSan Diego, CA 921551942822887
  19. Kaikei Cho, MDBakersfield, CA 933011528142924
  20. Kenneth Cho, MDPanorama City, CA 914021306905997
  21. Ki Cho, M.D.Santa Clara, CA 950501225122880
  22. Kyung Cho, M.D.Los Angeles, CA 900481154359487
  23. Laura Cho, M.D.Orange, CA 928691982790820
  24. Pazrica Cho, M.D.Valley Village, CA 916071770693095
  25. Philomena Cho, MDFontana, CA 923351821157421
  26. Richard Cho, MDFountain Valley, CA 927081275619983
  27. Samuel Cho, MDAnaheim, CA 928071538217518
  28. Sandy Cho, M.D.Torrance, CA 905031649320938
  29. Steven ChoTorrance, CA 905051336503911
  30. Yoon Cho, M.D.Santa Clara, CA 950501447330394
  31. Josephine Choa, M.D.Rosemead, CA 917701356384408
  32. Brandon Chock, M.D.Sacramento, CA 958171669667523
  33. Prithi Choday, MDLos Angeles, CA 900591013536028
  34. Prasad Chode, MDLakewood, CA 907121194720847
  35. Anna Chodos, M.D., M.P.H.San Francisco, CA 941221831425107
  36. Vickrum Chodri, MDAntioch, CA 945091376621474
  37. Ja-Yoon Choe, MDLos Angeles, CA 900061174150973
  38. Anmol Chohan, M.DDavis, CA 956161386917177
  39. Hardeep Chohan, MDClovis, CA 936111104904002
  40. Bryan Choi, MDGarden Grove, CA 928401255525499
  41. Cheong Choi, MDVan Nuys, CA 914061093800138
  42. Daniel Choi, M.DNewport Beach, CA 926631598797177
  43. Eugene Choi, M.D.Panorama City, CA 914021710340708
  44. Hanbyul ChoiRolling Hills Estates, CA 902741164885174
  45. Hichang Choi, MDLos Alamitos, CA 907201245308238
  46. Jennifer Choi, M.D.West Hollywood, CA 900481245337534
  47. Johnny Choi, M.D.Upland, CA 917861376640714
  48. Joshua Choi, M.D.Banning, CA 922201205270766
  49. Julian ChoiColton, CA 923241730506395
  50. Justin Choi, MDTorrance, CA 905051235472267

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.