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 344 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. Manisha Yadav, M.D.Mountain View, CA 940401295023034
  2. Monika Yadav, M.D.San Leandro, CA 945771134267255
  3. Pavan Yadav, M.D.Los Angeles, CA 900331851609218
  4. Justin Yadegar, MDInglewood, CA 903011326742578
  5. Kayvon Yadidi, D.O.Los Angeles, CA 900151659452969
  6. Sepideh Yadollahi, MDLong Beach, CA 908131386358562
  7. Patrick Yaffee, M.D.Calabasas, CA 913021144587676
  8. Jalal Yaganehdoust, MDVacaville, CA 956871912197997
  9. Carma Yaghi, M.D.San Francisco, CA 941151811423171
  10. Reza Yaghmai, MD, PHDVista, CA 920831780632067
  11. Shadi Yaghoubian, M.D.Los Angeles, CA 900481477811891
  12. Peter Yaholkovsky, MDGrass Valley, CA 959451306489604
  13. Sarah Yahraus, MDWoodland Hills, CA 913671821146614
  14. Kareem Yahya, MDFontana, CA 923351366590390
  15. Prakash Yakkundi, MDVictorville, CA 923951851350771
  16. Stuart Yamada, MDPanorama City, CA 914021154479079
  17. Cameron Yamaguchi, MDPanorama City, CA 914021326064478
  18. Russell Yamamoto, MDStockton, CA 952041184366957
  19. Corrynne Yamanaka, MDFremont, CA 945381760567424
  20. Robert Yamane, MDWestlake Village, CA 913611174542898
  21. Ron Yamane, M.D.Gardena, CA 902471649383308
  22. Pamela Yamanishi, MDFontana, CA 923351245307057
  23. Rebecca Yamarik, MDLong Beach, CA 908031285673202
  24. Dale Yamashita, MDSanta Clara, CA 950511164501805
  25. Kourosh Yamouti, MDSan Jose, CA 951291881798478
  26. Alice Yan, M.D.Daly City, CA 940151245265362
  27. Jofel Yan, MDTorrance, CA 905051710944673
  28. Min Yan, M.D.Oakland, CA 946121447499710
  29. Wilson Yan, MDOakland, CA 946111497990063
  30. Meghana Yanamandra, MDLos Angeles, CA 900331497382659
  31. Alisa Yang, MDPasadena, CA 911051043284979
  32. Andrew Yang, MDRiverside, CA 925051205928637
  33. Arielle Yang, M.D.Glendale, CA 912021134458235
  34. Betsy Yang, MDStanford, CA 943051033614656
  35. Brian Yang, MDMurrieta, CA 925621962441592
  36. Calvin Yang, M.D.Los Angeles, CA 900271871987727
  37. Chao-Hsiung Yang, MDLos Angeles, CA 900331922380567
  38. Clara Yang, M.D.Sacramento, CA 958171063755924
  39. Clement Yang, M.D.Beverly Hills, CA 902111336151570
  40. Daniel Yang, MDOrange, CA 928681518617315
  41. David Yang, M.D.Gold River, CA 956701548365034
  42. Diana YangSan Jose, CA 951281306377882
  43. Edward Yang, MDHarbor City, CA 907101700945326
  44. Eric Yang, MDTorrance, CA 905051588749600
  45. Gene Yang, MDSan Diego, CA 921201194896142
  46. Helen Yang, MDCastro Valley, CA 945461003270877
  47. Hong Fa Yang, M.D.Bakersfield, CA 933011720344153
  48. Hugo Yang, MDPalo Alto, CA 943011053428821
  49. Hui Yang, MDDaly City, CA 940151013212265
  50. Ingrid Yang, M.D.San Diego, CA 921231134515562

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.