NPPES file of Aug 9, 2026

Gastroenterology Physician in California

2,140 NPPES records list gastroenterology physician with a practice address in California, 5.5 per 100,000 residents, the 25th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 11 of 43.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · 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, 195

  1. Los Angeles195
  2. San Diego125
  3. San Francisco103
  4. Sacramento90
  5. Stanford70

Gastroenterology Physician records in California

  1. Ashkan Farhadi, M.D.Costa Mesa, CA 926261760423123
  2. Mary Farid, D.O.Burbank, CA 915051922189216
  3. Sirus Farivar, MDHuntington Beach, CA 926471891896841
  4. Mufti Saadat Farooqi, M.D.Fresno, CA 937111275610503
  5. Charles Farr, M.D.Fresno, CA 937201205821592
  6. Maham Farshidpour, MDLoma Linda, CA 923541891105565
  7. Robert Faust, M.D.Santa Rosa, CA 954051891766861
  8. Robert Fearn, MBCHBOrange, CA 928681336853126
  9. Rachel FederFremont, CA 945381396130522
  10. Loren Fefer, M.D.Rocklin, CA 957651063496503
  11. Syed Fehmi, M.D., M.SLa Jolla, CA 920371942320288
  12. Mark Feinerman, MDWoodland Hills, CA 913671790833754
  13. Theodor Feinstat, MDRoseville, CA 956611215063862
  14. Steven Feitelberg, MDSan Diego, CA 921201972674885
  15. Mohammad Phillip Fejleh, MDSan Diego, CA 921031205240959
  16. Edward Feldman, M.D.Los Angeles, CA 900481659403988
  17. Jack Feng, M.D.Mission Viejo, CA 926911710964481
  18. George Ferenczi, M.D.Glendora, CA 917401932270105
  19. Damian Fernandez, M.D.San Luis Obispo, CA 934051760758106
  20. Nielsen Fernandez-Becker, M.D., PH.D.Palo Alto, CA 943041972678639
  21. Colin FeuilleSan Francisco, CA 941101851718118
  22. Daryl Fick, M.D.San Diego, CA 921341649324625
  23. Keith Fiman, M.D.Piedmont, CA 946111578564506
  24. Don Finegold, MDSacramento, CA 958231972681609
  25. Benjamin Fiore, M.DSan Diego, CA 921341114330404
  26. Jeffrey Fiorenza, M.D.Monterey, CA 939401851577605
  27. Babak Firoozi, M.D.Fountain Valley, CA 927081891734828
  28. Henry Fisher, MDBurbank, CA 915051245349851
  29. John Fisher, M.D.Daly City, CA 940151639179799
  30. Richard Fisher, MDModesto, CA 953551295785798
  31. Michael Fleischman, M.D.Los Alamitos, CA 907201801073994
  32. Arnold Flick, M.D.La Jolla, CA 920371073879789
  33. Sarah Flores, M.D., M.P.H.Mather, CA 956551669608170
  34. Sergio Flores, MDSan Diego, CA 921231588674022
  35. Michael Fogel, MDSan Jose, CA 951281669598157
  36. Roy Foliente, M.D.Grass Valley, CA 959451598723348
  37. Cainan Foltz, MDSan Diego, CA 921231033434071
  38. Derek Fong, MDHarbor City, CA 907101497876247
  39. Eric Ford, MDChico, CA 959261003809294
  40. Parviz Foroozan, M.D.La Jolla, CA 920371619943016
  41. Kyle Fortinsky, MDOrange, CA 928681710403498
  42. Jeffrey Fox, MDSan Rafael, CA 949031972687945
  43. Charles Frankel, M.D.Santa Monica, CA 904041558310805
  44. Jennifer Frankel, M.D.Corte Madera, CA 949251194941799
  45. Richard Frederick, M.D.San Francisco, CA 941091720009160
  46. Steven Fredman, MDWalnut Creek, CA 945961861570962
  47. David Freeto, M.D.Napa, CA 945581386735918
  48. Catherine Frenette, M.D.La Jolla, CA 920371417935081
  49. Paul Frenkiel, M.D.Downey, CA 902401245284645
  50. Eric Frey, M.D.Ridgecrest, CA 935551891091682

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 25 of 51 per resident

  1. Colorado5.7
  2. Hawaii5.6
  3. South Carolina5.6
  4. California5.5
  5. Michigan5.5
  6. Arizona5.4
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.1% of these records appear in a Medicare file, against 84.4% 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. California83.1%
  2. United States84.4%

Gastroenterology Physician records in California, measured

  • In a Medicare file1,779 of 2,140 · 83.1% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file1,538 · 71.9% here, 73.7% nationally
  • Not updated in five years or more1,280 · 59.8% here, 55.6% nationally
  • Median graduation year2002 · the 1,538 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,140 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in California: 5.5 per 100,000 residents against 6.2 nationally (50 states and D.C.). Los Angeles has 195 of them (9%).

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 York1,797
  2. Florida1,513
  3. Texas1,478
  4. Pennsylvania1,049

States with a similar rate per 100,000

  1. Michigan5.5
  2. Arizona5.4
  3. Indiana5.4
  4. Vermont5.4

The largest states

  1. New York1,797
  2. Florida1,513
  3. Texas1,478
  4. Pennsylvania1,049
  5. Illinois887

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.