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 93 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. Sean FinkBakersfield, CA 933071134539562
  2. Anne Finkbeiner, M.D.San Francisco, CA 941431295850774
  3. Robert Finkelstein, MDMission Hills, CA 913451801814884
  4. Erik Finlayson, M.D.Mission Viejo, CA 926911942470893
  5. Jessica Finley, MDSanta Monica, CA 904031114376597
  6. Joanna Finn, MDSacramento, CA 958151043664964
  7. Gary Finstad, M.D.Lake Isabella, CA 932401184763633
  8. Barbara Finzen, M.D.Novato, CA 949451134225352
  9. Andrew Fiore, DOMountain View, CA 940401205327897
  10. Emily Fireman, MDSan Diego, CA 921231861923724
  11. Gary Firestein, M.D.San Diego, CA 921031699790808
  12. Sheila FiroozanSacramento, CA 958171467847095
  13. Elaheh Firoozi, M.D.Mountain View, CA 940401861528184
  14. Hadi Firoz, MDCarmichael, CA 956081972576270
  15. Abdullah Firoze Ahmed, M.D.Santa Monica, CA 904041831539121
  16. Brian First, M.D.San Diego, CA 921171770531816
  17. Philip FischbacherDanville, CA 945261467802264
  18. David Fischel, D.O., M.S.Pasadena, CA 911051821355033
  19. Gabriel Fischer, MDBerkeley, CA 947031154641140
  20. Ronald Fischer, MDSan Diego, CA 921091083735641
  21. Svetlana Fischer, M.D.Mission Hills, CA 913451578832192
  22. Jeremy Fish, MDMartinez, CA 945531952497943
  23. Jaco Fishenfeld, MDSan Jose, CA 951161689639577
  24. Clifford Fisher, MDMather, CA 956551063495687
  25. Emily Fisher, M.D.Hayward, CA 945451356728687
  26. Emma FisherSan Diego, CA 921341306470661
  27. Franz Fisher, M.D.Loma Linda, CA 923571841383890
  28. Ping Fisher, MDMenlo Park, CA 940251093029316
  29. Todd Fisher, M.D.Sacramento, CA 957581689610388
  30. Eugene Fishman, M.D.Los Angeles, CA 900671780791830
  31. Ira Fishman, M.D.Albany, CA 947061124194634
  32. Louis Fishman, MDBeverly Hills, CA 902101265450696
  33. Brad Fiske, MDSanta Monica, CA 904041821791641
  34. Albert Fite, M.D.Los Angeles, CA 900151326052218
  35. Junaid Fitter, M.D.Lancaster, CA 935361255466835
  36. Linda Fitts, MDSan Diego, CA 921201164581773
  37. Michael Flagg, MDPanorama City, CA 914021881761724
  38. Daniel Flaherty, DOSan Diego, CA 921031396495040
  39. Denise Flaherty, MDNapa, CA 945581497833388
  40. Geralyn Flaig, M.D.Auburn, CA 956031992037253
  41. Howard Flaks, MDBeverly Hills, CA 902101457541435
  42. Jason Flamm, MDSacramento, CA 958251396823019
  43. Kevin Flanigan, MDRidgecrest, CA 935551003987587
  44. John Flaningam, MDOakland, CA 946191457718736
  45. Davida Flattery, D.O.Oakland, CA 946021851559975
  46. Morris Flaum, MDSan Francisco, CA 941091841430238
  47. Susan Fleischman, M.D.Pasadena, CA 911881609919075
  48. Richard Fleming, M.D.Fairfield, CA 945341831277722
  49. Chantal FletcherFresno, CA 937021831207976
  50. Jason Fletcher, D.O.Long Beach, CA 908061487810131

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.