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 347 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. Karine Yeghoyan, M.D.Mission Hills, CA 913451265664304
  2. Cheng Yeh, MDMonrovia, CA 910161740386705
  3. Forrest Yeh, MDOakland, CA 946021083349401
  4. George Yeh, M.D.San Jose, CA 951281144255480
  5. Hong-Shen Yeh, MDNapa, CA 945581629018684
  6. James YehTorrance, CA 905021144411885
  7. James Yeh, D.O.Alameda, CA 945011386613776
  8. James Yeh, MDSan Jose, CA 951281578632592
  9. Joseph Yeh, M.D.Santa Monica, CA 904041609025345
  10. Joyce Yeh, M.D.Torrance, CA 905031245242791
  11. Justin Yeh, MDLos Angeles, CA 900331396373072
  12. Kelly Yeh, M.D.South San Francisco, CA 940801336304369
  13. Maria Yeh, D.O.Daly City, CA 940151497166201
  14. Patricia Yeh, M.D.Mountain View, CA 940401194921668
  15. Ray Yeh, D.O.Alameda, CA 945011780653220
  16. Victoria Yeh, M.D.Modesto, CA 953501821418245
  17. You-Tan Yeh, M.D.Lodi, CA 952401952574352
  18. Ellie Yelding-Sloan, M.D.San Francisco, CA 941091144461237
  19. Francis Yemofio, MD, MPHLos Angeles, CA 900151962573030
  20. Andrew Yen, M.D.Mather, CA 956551992781884
  21. George Yen, MDLos Angeles, CA 900951841575990
  22. Harry Yen, MDLos Angeles, CA 900271134290034
  23. Michelle Yen, MDMountain View, CA 940401669934683
  24. Aishwarya YenepalliSacramento, CA 958171356921852
  25. Peter Yeo, MDSan Francisco, CA 941431275597353
  26. Christine Yeoh Hauser, M.D.Los Angeles, CA 900271033361126
  27. Narineh Yermian, DOGlendale, CA 912031003498718
  28. Daryoush Yeroshalmi, M.D.Los Angeles, CA 900171558655712
  29. Kimberley Yescas Garibay, M.D.Modesto, CA 953551255824884
  30. Ambeshie Yesus, M.D.Los Angeles, CA 900331912951070
  31. David Yetenikyan, MDColton, CA 923241548910417
  32. Soumya Yeturi, MDLompoc, CA 934361922124551
  33. George Yeung, MDSan Francisco, CA 941411225787849
  34. Hung-Chuen Yeung, M.D.Hacienda Heights, CA 917451790873594
  35. Jennifer Yeung, MDLos Angeles, CA 900951477579365
  36. Marianne Yeung, M.D.Stanford, CA 943051598912511
  37. Yvonne Yeung, M.D.Oakland, CA 946071144244096
  38. Esther Yi, MDLos Angeles, CA 900341801545090
  39. Hye Yi, MDIrvine, CA 926041043890064
  40. Khin Yi, MDStockton, CA 952101669546974
  41. Pauline YiSanta Monica, CA 904041114284171
  42. Su Yi, M.D.Lakewood, CA 907121902867476
  43. Sue Yie, MDLos Angeles, CA 900951871513911
  44. Barnabas Yik, MDSouth San Francisco, CA 940801427589266
  45. Sang Yim, MDRiverside, CA 925061003294661
  46. Jonathan Yin, M.D.Sacramento, CA 958161417483066
  47. Crispino Ylanan, MDSacramento, CA 958231326126046
  48. Jordan YoderOakland, CA 946111992047526
  49. Lauren YokomizoUnion City, CA 945871073969184
  50. Christopher Yokoyama, M.D.La Jolla, CA 920371619909678

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.