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 91 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. Ali Farvid, M.D.Bellflower, CA 907061063545804
  2. Michael Farzam, M.D.Los Angeles, CA 900491619295474
  3. Adam Farzaneh, MDPalm Springs, CA 922641154819209
  4. Thomas Fashinell, MDVacaville, CA 956881609926419
  5. Katherine Fassihi, MDLos Angeles, CA 900341396893129
  6. Fazilath Fatima, MDFountain Valley, CA 927081962429571
  7. Sanna Fatima, M.D.Antioch, CA 945311235542531
  8. Rodney Faucett, DOWest Sacramento, CA 956911558468207
  9. Frederick Fauvre, M.D.Ojai, CA 930231669554390
  10. Nathan Favini, M.D.San Francisco, CA 941041124381645
  11. Jessica Favreau, MDLos Altos, CA 940221841450731
  12. Joya Favreau, M.D.Los Angeles, CA 900481942239041
  13. Peter Fay, MDSunnyvale, CA 940861154384337
  14. Fady Fayad, M.D.Riverside, CA 925031205862612
  15. Oluseyi Fayanju, MDStanford, CA 943051578090189
  16. Ali Fayed, MDFresno, CA 937011316931934
  17. Mariam FazelWest Hollywood, CA 900481073034799
  18. Sal Fazio, MDSan Francisco, CA 941151174601769
  19. Jane Fealy, MDBellflower, CA 907061700957743
  20. Todd Fearer, MDSanta Barbara, CA 931081619960903
  21. Barbara Febbo-Wilson, M.D.Roseville, CA 956611154307700
  22. Andrew Feda, MDLos Angeles, CA 900251265691281
  23. Douglas Fedder, M.D.Santa Barbara, CA 931051922625466
  24. Carlos Feder, M.D.Palo Alto, CA 943061225310238
  25. Eleonora Fedonenko, M.D.Los Angeles, CA 900481790721850
  26. James Feeney, MPH, MDSan Francisco, CA 941431760915706
  27. Nabil Feghali, MDCanoga Park, CA 913041982787057
  28. Kada Fehlman, MDPasadena, CA 911051972205649
  29. Hailing Fei, MDRedwood City, CA 940621861400350
  30. Stephanie Fein, MDLos Angeles, CA 900951629093893
  31. Bennett Feinberg, MDRepresa, CA 956711760560494
  32. Todd Feinman, M.D.Venice, CA 902911184783615
  33. David Feinstein, MDSunnyvale, CA 940871609810597
  34. Eric Feit, M.D.Burbank, CA 915051588654875
  35. Samuel Feizi, MDNorthridge, CA 913251356389274
  36. Meisam Fekri, M.DWest Covina, CA 917901831687581
  37. Rod FelberLodi, CA 952401336256965
  38. Carl Feld, MDTorrance, CA 905031205837697
  39. Robert Felder, MDSan Diego, CA 921201073672689
  40. Arthur Feldman, M.D.San Jose, CA 951161669576864
  41. Mitchell Feldman, MDSan Francisco, CA 941431285743120
  42. Vincent Felitti, MDSan Diego, CA 921201669520656
  43. Francis Felix, M.D.Rancho Cordova, CA 956701639346901
  44. Roman Felix, MDHemet, CA 925451659953487
  45. Emilio Feliz SalaCommerce, CA 900401073195160
  46. Robert Fell, M.D.Oxnard, CA 930301619322815
  47. Betsy Felser, MDPasadena, CA 911051144292897
  48. Joan Feltman, M.D.Santa Monica, CA 904041053418640
  49. Eric Feng, D.OVallejo, CA 945891518371798
  50. John Feng, MDSanta Ana, CA 927041346660081

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.