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 10 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. Michael Steinman, MDSan Francisco, CA 941211124088240
  2. David Stern, M.D.Encino, CA 914361689660359
  3. Joann Stewart, M.D.La Jolla, CA 920371487627790
  4. William Strauss, MDMoraga, CA 945561932123312
  5. Angelica Suarez-Ramirez, MDSan Diego, CA 921221871174409
  6. Rebecca Sudore, M.D.San Francisco, CA 941211851371744
  7. Jocelyn Sumcad, M.D.Paramount, CA 907231386732816
  8. Diane SuzukiNorth Hills, CA 913431437174463
  9. Victoria Sweet, MDSan Francisco, CA 941161275673477
  10. Hooman Tabarsi, MDSan Diego, CA 921151821518333
  11. Angela Tan, MDOrange, CA 928681437358173
  12. Danilo Tan, M.D.San Diego, CA 921081073648200
  13. Zaldy Tan, M.D.Los Angeles, CA 900481174585376
  14. Misa TanakaLos Angeles, CA 900951093269458
  15. James Templeman, M.D.Los Angeles, CA 900271497059216
  16. Joyce Tenover, MD, PHDPalo Alto, CA 943041811952757
  17. Marci Teresi, MDSanta Clara, CA 950511316024243
  18. Vittavat Termglinchan, M.D.Stanford, CA 943051629432729
  19. Sarah Teymoorian, M.D.Laguna Hills, CA 926531518147396
  20. Mohinderpal Thaper, MDPoway, CA 920641295795037
  21. Deepak Thiagarajan, MDRancho Cucamonga, CA 917301205052990
  22. Maria Thies, D.O.Bermuda Dunes, CA 922031295186765
  23. Colin Thomas, MD, MPHSan Diego, CA 921611700849502
  24. Suravi Thomas, MPH, MDSan Francisco, CA 941341407352198
  25. Carol Thrun, MDLos Angeles, CA 900111891764536
  26. Robert Tickes, MDLa Jolla, CA 920371326500620
  27. Maung Tin, MDSouth San Francisco, CA 940801003015215
  28. Natalie Tjota, MDSan Francisco, CA 941211699355016
  29. Ali Torbati, MDOakland, CA 946111124384110
  30. Kenneth Tram, MDOrange, CA 928681700875911
  31. Dan Tran, M.D.Rosemead, CA 917701487709747
  32. Nancy Tran, MDLos Angeles, CA 900951831768712
  33. Dzung Trinh, MDFresno, CA 937101679651582
  34. Oliver Tsai, M.D.West Covina, CA 917901306828272
  35. Robert Tufft, MDOakland, CA 946091619010121
  36. Alia Tuqan, MDRiverside, CA 925011831377860
  37. Maurice Turner, MDHarbor City, CA 907101336778877
  38. Ryan Uyan, MDMonterey Park, CA 917541275996050
  39. John Uyanne, MDLos Angeles, CA 900451871635243
  40. Phanikumar Vadarevu, M.D.Sacramento, CA 958251003912668
  41. Vinod Valiveti, M.D.Oxnard, CA 930301598714107
  42. Jacquelyn Vander Wall, M.D.Los Alamitos, CA 907201699807792
  43. Emily Venvertloh, DOLa Jolla, CA 920931912581497
  44. Dat Vo, MDBellflower, CA 907061497822407
  45. Man Vu, M.D.La Jolla, CA 920371740254325
  46. Anne Wakamiya, M.D.Stanford, CA 943051063774610
  47. Susan Wakerlin, MDOakland, CA 946111164594982
  48. Xaviour Walker, M.D.Orange, CA 928681104151042
  49. Louise Walter, M.D.San Francisco, CA 941211689659187
  50. Kenneth Waltzer, M.D.Santa Monica, CA 904051437424090

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.