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 300 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. Nandita Sriram, M.D.Los Angeles, CA 900951932526266
  2. Malathy Sriskandarajah, M.DSan Diego, CA 921011427066844
  3. Nithya Sritharan, M.DSanta Cruz, CA 950651619359072
  4. Tejendra Srivastava, M.D.Dunsmuir, CA 960251013170992
  5. Debra St Claire, M.D.Menlo Park, CA 940251205974409
  6. Paul St John Hammond, MB BS DPHILLoma Linda, CA 923571033214580
  7. Peter St Louis, MDRancho Mirage, CA 922701679686273
  8. Rodman St. Clair, M.D.Ontario, CA 917611275788630
  9. Holland St. JohnSunnyvale, CA 940861609884931
  10. Helen Stacey, MDWalnut Creek, CA 945981821235425
  11. Randall Stafford, MD, PHDStanford, CA 943051497804439
  12. Thomas Stafford, M.D.Rocklin, CA 956771043511868
  13. Jennings Staley, M.D.San Diego, CA 921611295812329
  14. Jothan Staley, M.D.Inglewood, CA 903011366782922
  15. Roxanne Stallworth, M.D., M.P.H.Costa Mesa, CA 926271366678906
  16. Basil Stamos, MDSan Francisco, CA 941021285766212
  17. Lauren Standig, M.D.San Francisco, CA 941101619950698
  18. David Stanford, MDSun City, CA 925861568464923
  19. William Stanford, MD, PHDTorrance, CA 905051942249644
  20. Miles Stanich Md Inc, MDSan Diego, CA 921041700907771
  21. Adrianna StanleyLos Angeles, CA 900951154882553
  22. Douglas Stanley, MDFresno, CA 937201871589085
  23. Jeffrey Stanley, M.D.San Francisco, CA 941111083858849
  24. Jennifer Stanley, MDOakland, CA 946091841724218
  25. Sarah Stanowicz, M.D.Orange, CA 928661205082161
  26. Janet Staples Edwards, MDMontebello, CA 906401518927169
  27. Bruce Stark, M.D.Burbank, CA 915051902801301
  28. Kirsten Starr, M.D.San Diego, CA 921301518011188
  29. Rita Starritt, M.D.San Diego, CA 921081548225964
  30. Thor Start, MDVallejo, CA 945891548348360
  31. Gerson Stauber, MDRancho Cordova, CA 956701548286982
  32. Michele Staunton, M.D.Mission Viejo, CA 926911659358646
  33. Michael Steadman, M.DEncinitas, CA 920241285830950
  34. Rita Stec, MDPalm Desert, CA 922601881722718
  35. Marissa Steele, M.D.San Diego, CA 921231386871721
  36. Michael Steele, M.D.San Luis Obispo, CA 934011396768115
  37. Natasha Steele, MDStanford, CA 943051932736584
  38. Emory Steelman, MDFresno, CA 937101194305177
  39. Michael Stefan, M.D.Los Angeles, CA 900571134149099
  40. Deirdre StegmanPalo Alto, CA 943011720195613
  41. Scott Steiger, MDSan Francisco, CA 941101679673131
  42. David Stein, M.D.Santa Monica, CA 904041417988775
  43. Gary Stein, MDRedwood City, CA 940631225116817
  44. Joseph Stein, M.D.San Diego, CA 921031235104456
  45. Margaret Stein, MDBeverly Hills, CA 902111841942901
  46. Michael Stein, M.D.Campbell, CA 950081639157274
  47. Terry Stein, MDOakland, CA 946121730268871
  48. Alan Steinberg, MDMarina Del Rey, CA 902921144247628
  49. Jeffrey Steinberg, M.D.Torrance, CA 905051801862503
  50. Darren Steinberger, M.D.Los Angeles, CA 900271639304421

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.