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 13 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. Patrick Ginn, M.D.Fresno, CA 937201790799864
  2. Jeffrey Glenn, M.D., PH.D.Stanford, CA 943051366523946
  3. Craig Gluckman, MDWest Hills, CA 913071881942506
  4. William Go, M.D.Lancaster, CA 935341992972715
  5. Aparna Goel, MDStanford, CA 943051619104411
  6. Gati Goel, M.D.Los Angeles, CA 900951649445677
  7. Stanley Goldberg, MDSan Francisco, CA 941101366545865
  8. David Goldenberg, MDStanford, CA 943051366855405
  9. Michael Goldhamer, M.D.San Diego, CA 921031104880202
  10. Robert Goldklang, M.D.Encinitas, CA 920241275527657
  11. Gerald Goldman, MDPomona, CA 917671538232905
  12. Oliver Goldsmith, MDLos Angeles, CA 900341417005463
  13. Jeffrey Goldstein, MDSacramento, CA 958191134255698
  14. Jerome Goldwasser, M.D.Los Angeles, CA 900481831103506
  15. Ramakrishna Gollapudi, M.D.Brentwood, CA 945131891880159
  16. Daniel Golpanian, M.D.Pasadena, CA 911051639526957
  17. Courtney Gonzales, M.D.San Francisco, CA 941431669708830
  18. Stephanie Gonzalez, M.D.Long Beach, CA 908151497012991
  19. Tyralee Goo, M.D.Long Beach, CA 908221285887042
  20. Karen Gordon, MDCoronado, CA 921181164506408
  21. Saeid Goshtasbi, MDLong Beach, CA 908081518144344
  22. Jay Gospe, M.D.Santa Rosa, CA 954041770853806
  23. Andres Gottfried Blackmore, M.D.San Diego, CA 921031629310735
  24. Klaus Gottlieb, MDSan Luis Obispo, CA 934011508832387
  25. Amir Hossein Gougol, MDStanford, CA 943051568810984
  26. Richard Gould, M.D.Fairfield, CA 945331215980461
  27. Maurice Gourdji, M.D.Tarzana, CA 913561699751586
  28. Preeya Goyal, M.D.Whittier, CA 906021851781645
  29. Treta Goyal, M.B.B.S,, M.P.H.Santa Cruz, CA 950651558612770
  30. Ian Gralnek, MDLos Angeles, CA 900951194743120
  31. Sirisha Grandhe, M.D.Sacramento, CA 958171487032355
  32. James Gray, M.D.Carlsbad, CA 920091508057936
  33. Victoria Green, MDDuarte, CA 910101184251712
  34. Adam Greenberg, M.D.Fresno, CA 937201962745752
  35. Harry Greenberg, MDPalo Alto, CA 943041689731200
  36. Bruce Greenwald, M.D.Ventura, CA 930031619908829
  37. Andrew Gregg, MD PHDThousand Oaks, CA 913611942769104
  38. Peter Gregory, M.DPalo Alto, CA 943041891889903
  39. Damanpreet Grewal, M.D.Stanford, CA 943051275843765
  40. Ronald Griffin, M.D.Loma Linda, CA 923571164516316
  41. William Griffiths, MDModesto, CA 953501689661720
  42. Robert Gross, MDCulver City, CA 902321790821163
  43. Neera Grover, MDApple Valley, CA 923071023169489
  44. Eugenio Grunvald, M.D.San Diego, CA 921031942356662
  45. Phillip Gu, MDWest Hollywood, CA 900481447647268
  46. Jay Guan, M.D.Los Angeles, CA 900331295122497
  47. Jason Guardino, D.O.Sacramento, CA 958231033245816
  48. Victor Guharoy, MDRialto, CA 923771306259114
  49. Navjyot Gujral, M.DSan Clemente, CA 926731174591994
  50. Paul Gulsrud, MDWest Hills, CA 913071801975966

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.