NPPES file of Aug 9, 2026

Geriatric Medicine (Internal Medicine) Physician in California

532 NPPES records list geriatric medicine (internal medicine) physician with a practice address in California, 1.4 per 100,000 residents, the 19th 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 11 of 11.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0300X · 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, 77

  1. Los Angeles77
  2. San Francisco57
  3. San Diego38
  4. La Jolla26
  5. Sacramento18

Geriatric Medicine (Internal Medicine) Physician records in California

  1. Jonathan Wanagat, MD PHDLos Angeles, CA 900951831204627
  2. Michael Wang, M.D.Bell, CA 902011538253802
  3. Qingping Wang, M.D., PH.D.South San Francisco, CA 940801104818590
  4. Robert Wang, PHD MDLos Angeles, CA 900361235293648
  5. Blanche Watson, M.D.Los Angeles, CA 900361992866487
  6. Robert Waxler, M.D.Los Angeles, CA 900361457412942
  7. Nancy Weintraub, M.D.Sepulveda, CA 913431144322462
  8. William Welsh, D.O.Whittier, CA 906021568401255
  9. Carolyn Welty, M.D.San Francisco, CA 941181669403853
  10. Anne White, D.O.Santa Barbara, CA 931051801809660
  11. Elizabeth Whiteman, MDBeverly Hills, CA 902111952321044
  12. Eric Widera, M.D.San Francisco, CA 941211124134309
  13. Brie Williams, MDSan Francisco, CA 941211992718811
  14. Fiona Wilmot, M.D.Oakland, CA 946121659722619
  15. Gregory Wong, MDLos Angeles, CA 900331336294875
  16. Richard Wong, M.D.Fountain Valley, CA 927081659416436
  17. Theresa WongPasadena, CA 911051215469176
  18. Valerie Wong, MDLos Angeles, CA 900951174918049
  19. San San Wong-Lee, M.DLong Beach, CA 908221164538344
  20. Wesley Woo, M.D.La Canada, CA 910111629271879
  21. Jayson Wright, MDSanta Barbara, CA 931051043849607
  22. Casey Yamashita, MDLos Angeles, CA 900331316392673
  23. Marcia Yee, MDSan Diego, CA 921031730268269
  24. Monique Yohanan, M.D.San Mateo, CA 944031700801560
  25. Lindsey Yourman, MDSan Diego, CA 921031174813943
  26. Christopher YukiLa Jolla, CA 920371538854856
  27. Myo Zaw, MDStockton, CA 952101083022925
  28. Paloma Zeballos ZunigaLos Angeles, CA 900221699935940
  29. Samuel Zeng, MD, PHDLa Jolla, CA 920371033815402
  30. Maryam Ziaie Matin, MDGreenbrae, CA 949041124133111
  31. Robert Zimbroff, MDBrisbane, CA 940051659832087
  32. Andres Zimmermann, MDOceanside, CA 920561114904422

Source: CMS NPPES, primary taxonomy 207RG0300X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Oregon1.6
  2. North Carolina1.4
  3. Illinois1.4
  4. California1.4
  5. Minnesota1.3
  6. Arkansas1.3
  7. 50 states and D.C.1.4

Source: CMS NPPES, primary taxonomy 207RG0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

76.7% of these records appear in a Medicare file, against 72.8% 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. California76.7%
  2. United States72.8%

Geriatric Medicine (Internal Medicine) Physician records in California, measured

  • In a Medicare file408 of 532 · 76.7% here, 72.8% nationally
  • In the CMS Doctors and Clinicians file271 · 50.9% here, 51.3% nationally
  • Not updated in five years or more328 · 61.7% here, 61.4% nationally
  • Median graduation year1999 · the 271 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

532 NPPES records list geriatric medicine (internal medicine) physician (207RG0300X) as their primary taxonomy with a practice address in California: 1.4 per 100,000 residents against 1.4 nationally (50 states and D.C.). Los Angeles has 77 of them (14%).

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 York508
  2. Florida287
  3. Texas256
  4. Pennsylvania228

States with a similar rate per 100,000

  1. Minnesota1.3
  2. Illinois1.4
  3. Arkansas1.3
  4. Virginia1.3

The largest states

  1. New York508
  2. Florida287
  3. Texas256
  4. Pennsylvania228
  5. Massachusetts225

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.