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 264 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. Darrel Robbins, MDSan Francisco, CA 941151205914801
  2. Robert Robbins, MDPalm Springs, CA 922621962525428
  3. Saverio Roberto, DOSanta Rosa, CA 954051700285103
  4. Brian Roberts, M.D.Emeryville, CA 946081831158120
  5. Douglas Roberts, M.D.Ridgecrest, CA 935551508869926
  6. Eric Roberts, M.D.Los Angeles, CA 900361376561050
  7. Erin Roberts, MDSan Diego, CA 921031548721681
  8. Mary Roberts, M.D.Seaside, CA 939551487743381
  9. Rachel Roberts, MDEmeryville, CA 946081477757375
  10. Asha Robertson, M.D.La Jolla, CA 920371639478191
  11. Cynthia Robertson, MDPoway, CA 920641265483085
  12. Gregory Robertson, M.D.Newport Beach, CA 926601932281011
  13. Katherine Robertson, MDRoseville, CA 956611144578451
  14. Colin RobinsonNorth Hollywood, CA 916061720377880
  15. Hannah Robinson, D.O., M.P.H.Ventura, CA 930031144635483
  16. Harrison Robinson, MDEscondido, CA 920251063451557
  17. James Robinson, M.D.Turlock, CA 953801467491001
  18. Kristen Robinson, MDSacramento, CA 958251730267444
  19. Mark Robinson, MDColton, CA 923241346286507
  20. Mark Robinson, M.D.Loma Linda, CA 923541508051251
  21. Nguyenthi Robinson, MDSan Diego, CA 921201649328659
  22. Owen Robinson, M.D.Gardena, CA 902471447246806
  23. Reice Robinson, MDSan Diego, CA 921031942902226
  24. Samuel Robinson, M.D.Chula Vista, CA 919101669908612
  25. Sarah Robinson, MDPalo Alto, CA 943011588674766
  26. Susan Robinson, M.D.Bishop, CA 935141245784917
  27. Tamara Robinson, MDSacramento, CA 958141396911772
  28. Martin Robles Magana, MD, MPHDaly City, CA 940151669121059
  29. Liz Roca-Nelson, MDRoseville, CA 956611457727562
  30. Audrey Rocco-Welch, MDSan Juan Capistrano, CA 926751770616716
  31. Joaquin Roces, P.A.Sacramento, CA 958161649384348
  32. Steven Roche, M.D.Janesville, CA 961141376746586
  33. Patricia Rochette, D.O.Berkeley, CA 947051710001805
  34. Carmelo Roco, M.D.San Francisco, CA 941021316996465
  35. Andrew Rodgers, MDLivermore, CA 945511134207236
  36. Timothy Rodgers, MDSanta Barbara, CA 931051427090422
  37. Tomasz Rodkiewicz, MDRancho Cordova, CA 956701942388624
  38. Mark Rodrigues, M.D.Orange, CA 928681417977992
  39. Anastacia Rodriguez, DOHesperia, CA 923451467985259
  40. Arianna RodriguezSan Diego, CA 921031609403286
  41. Carlos Rodriguez, MDTorrance, CA 905031578815213
  42. Carlos Rodriguez, M.D.Arvin, CA 932031124221056
  43. Christopher Rodriguez, M.D.,M.S.Redwood City, CA 940631265790406
  44. Dulce Rodriguez, MDLoma Linda, CA 923541417393745
  45. Elias Rodriguez, MDWatsonville, CA 950761730295395
  46. Ernesto Rodriguez, MDFresno, CA 937011750967253
  47. George Rodriguez, M.D.Escondido, CA 920251114946753
  48. Johana Rodriguez, M.D.Anaheim, CA 928011043691389
  49. Jorge Rodriguez, M.D.Palm Springs, CA 922641801874375
  50. Julieta Rodriguez, MD, MPHSan Francisco, CA 941431649769555

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.