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 338 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. Eric Wilson, M.D.Harbor City, CA 907101689906414
  2. Fiona Wilson, M.D.San Francisco, CA 941431386674927
  3. Kalin Wilson, MDStanford, CA 943051265010029
  4. Laura Wilson, M.D.Berkeley, CA 947071467829879
  5. Lisha Wilson, MDOakland, CA 946091003809765
  6. Lou Ellen Wilson, MDMission Hills, CA 913451386650349
  7. Madison WilsonSan Francisco, CA 941431437736394
  8. Michael Wilson, M.D.Redlands, CA 923741740229293
  9. Michele Wilson, MDNapa, CA 945581902984743
  10. Nadine Wilson, M.D.San Diego, CA 921201215119292
  11. Ruth Wilson, M.D.Napa, CA 945581407822331
  12. Sandra Wilson, MDSolvang, CA 934631457440638
  13. Vanessa Wilson, M.D.Fremont, CA 945361992728620
  14. Marjorie Wimmer, MDRiverside, CA 925071003494147
  15. Aye-Aye WinLos Angeles, CA 900031548366511
  16. Hla Win, MDTracy, CA 953771376069856
  17. Htay Win, M.D.Fremont, CA 945381881642155
  18. Kenny Win, M.D.Patton, CA 923691013984020
  19. Khin Win, D.O.Bakersfield, CA 933011841551405
  20. Khin Win, M.D.Lancaster, CA 935341831209998
  21. Khin Win, M.DModesto, CA 953551447675566
  22. Khin Win, MDVacaville, CA 956961356548119
  23. Kyi Win, MDSan Francisco, CA 941301508966490
  24. Kyi Kyi Win, MDSonora, CA 953701083606487
  25. Mya-Mya Win, MDStockton, CA 952101346328234
  26. Ohnma Win, M.D.Los Angeles, CA 900591497846380
  27. Shine Win, M.DModesto, CA 953551720461577
  28. Su Win, MDVallejo, CA 945891295316362
  29. Theresa WinSan Bernardino, CA 924111538401856
  30. Zin Win, M.D.Lancaster, CA 935341063761740
  31. Ricky Winardi, MDSacramento, CA 958251366520025
  32. Benjamin Winarko, M.D.Cerritos, CA 907031811255185
  33. Sudarmo Winarko, MDLos Angeles, CA 900271982775946
  34. David Wine, M.D.Vista, CA 920831811985542
  35. Nelar Wine, MDSan Diego, CA 921201194892190
  36. Jereld Wing, M.D.San Leandro, CA 945771982782751
  37. Mark Winkler, MDMoorpark, CA 930211871568659
  38. Minke Winklerprins, MDSan Diego, CA 921031972801645
  39. Julie Winn, M.D.San Diego, CA 921031568410132
  40. Karen Winn, MDSalinas, CA 939011942284062
  41. Patricia Jean Winner, MDPalo Alto, CA 943041295377141
  42. Emory Winship, D.O.Oceanside, CA 920551265871693
  43. Dwight Winslow, MDSmith River, CA 955671487869566
  44. Lisa Winston, MDSan Francisco, CA 941101396857454
  45. Lisle Winston, MDLos Angeles, CA 900951154884377
  46. Gretchen Winter, PH.D., D.O.Templeton, CA 934651558640953
  47. Jacob Winter, MD, PHDSan Francisco, CA 941431417686668
  48. Julie Winter, MDNapa, CA 945581538247358
  49. Karen Winter, DOVallejo, CA 945891740332972
  50. Roman Winter, M.D.Santa Maria, CA 934541588979371

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.