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 332 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. Danielle WangOrange, CA 928681679928881
  2. David WangDublin, CA 945681245640143
  3. Dejun Wang, M.D.Rowland Heights, CA 917481275559288
  4. Denise Wang, M.D.West Hollywood, CA 900481437786498
  5. Deyu Wang, MDPalo Alto, CA 943011629657234
  6. Diana Wang, MDBellflower, CA 907061548337744
  7. Douglas WangLoma Linda, CA 923541013572015
  8. Edward Wang, MDLos Angeles, CA 900271477613644
  9. Eric Wang, MDSacramento, CA 958251598843278
  10. Fengdan Wang, M.D.Mountain View, CA 940401366716391
  11. Fusheng Wang, M.D.San Francisco, CA 941331528050606
  12. Gina Wang, MDOakland, CA 946071619991510
  13. He Wang, MDSan Francisco, CA 941091316649270
  14. Hongtao WangFresno, CA 937211609173517
  15. Hubert Wang, MDSan Jose, CA 951281922560762
  16. Ida Wang, M.D.Arcadia, CA 910061164429585
  17. James Wang, M.D.Irvine, CA 926141639413123
  18. Jane Wang, MDStanford, CA 943051689032831
  19. Jeffrey Wang, MDHarbor City, CA 907101033267828
  20. Jeffrey WangWoodland Hills, CA 913671114300548
  21. Jeffrey Wang, MDOakland, CA 946111386270429
  22. Jennifer WangPalo Alto, CA 943011083091318
  23. Jennifer Wang, M.D.Fremont, CA 945381497768329
  24. Jessica Wang, M.D.Oakland, CA 946051740675495
  25. John Wang, MDLos Angeles, CA 900341457410078
  26. John Wang, M.D., PH.D.West Covina, CA 917901285747931
  27. John Wang, M.D., PH.DLoma Linda, CA 923541235498676
  28. John Wang, M.D.Fountain Valley, CA 927081720048291
  29. Karoline Wang, MDIrvine, CA 926021255918231
  30. Kelly Wang, DOLong Beach, CA 908131063102069
  31. Kevin Wang, MDSan Diego, CA 921031831681774
  32. Lin Wang, M.D., PH.D.San Francisco, CA 941151710412085
  33. Linda Wang, MDStanford, CA 943051457857351
  34. Lisa Wang, MDMountain View, CA 940401306340989
  35. Lu Wang, M.D.Mission Hills, CA 913451720455454
  36. Mary Wang, MDRowland Heights, CA 917481669564811
  37. Melinda Wang, MDStanford, CA 943051083290670
  38. Michael Wang, MDCovina, CA 917231588623045
  39. Michelle Wang, M.D.Baldwin Park, CA 917061831123272
  40. Pamela Wang, M.D.Danville, CA 945261033188602
  41. Pao-Ching Wang, M.D.San Francisco, CA 941331073755005
  42. Ruth Wang, MD, MEDAlpine, CA 919011033791926
  43. Serena Wang, MDSanta Monica, CA 904041851634786
  44. Sharon Wang, D.OSacramento, CA 958171164699781
  45. Shih-Fang Wang, MDSan Gabriel, CA 917761215943261
  46. Shuo Wang, M.D.Los Angeles, CA 900121538232137
  47. Stephanie Wang, M.D.Sylmar, CA 913421225484025
  48. Stephanie Wang, MDStanford, CA 943051215518790
  49. Tei Chen Wang, M.D.West Covina, CA 917901679523906
  50. Tianyi Wang, M.D.Sacramento, CA 958171871836056

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.