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 15 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. Louis Hernandez, MDAnaheim, CA 928071780755603
  2. Stephen Herr, MDWest Hills, CA 913071326005091
  3. Danice Hertz, M.D.Santa Monica, CA 904041760431027
  4. Lisa Hertz, MDLos Alamitos, CA 907201639237720
  5. Howard Herzenberg, M.D.Mountain View, CA 940401376584342
  6. Esmail Hessami, MDBurbank, CA 915011568475135
  7. Terence Heywood, MDMartinez, CA 945531871671362
  8. Martha Hierro, M.D.Santa Monica, CA 904041770562431
  9. Lisa Higa, M.D.Berkeley, CA 947051669583167
  10. Kevin Hill, DOGrass Valley, CA 959451164524815
  11. Tressia Hing, M.D.Burlingame, CA 940101427337815
  12. Brent Hiramoto, MD, MPHLos Angeles, CA 900331386037000
  13. Betty Ho, M.D.Redwood City, CA 940621134168750
  14. Edith Ho, M.D. M.S.Stanford, CA 943051942481619
  15. Firmin Ho, M.D.Monterey Park, CA 917541497746960
  16. Jason Ho, MDLos Angeles, CA 900331821551706
  17. Samuel Ho, M.D.San Diego, CA 921611194777144
  18. Wendy Ho, MDLos Angeles, CA 900951750362570
  19. John Hobson, M.D.Santa Barbara, CA 931051447368535
  20. Kaveh Hoda, MDLa Mesa, CA 919421720285273
  21. John Hoefs, MDIrvine, CA 926181154425742
  22. Christopher Hogan, M.D.Greenbrae, CA 949041376867010
  23. Daniel Hollander, MDLos Angeles, CA 900951962420919
  24. George Holman, MDOrange, CA 928681447486436
  25. Kenneth Holt, MDTorrance, CA 905051932198108
  26. Daniel Hommes, M.D.Los Angeles, CA 900951891067153
  27. John Hong, MDFallbrook, CA 920281023088630
  28. Peter Hooberman, M.D.Castro Valley, CA 945461710098298
  29. Kevin Horgan, MDLos Angeles, CA 900951306864350
  30. Brian Horwich, MDSanta Monica, CA 904041073058087
  31. Mehra Hosseini, M.D.Berkeley, CA 947051205947884
  32. Linda Hou, MDTorrance, CA 905021982870622
  33. Trevor Houston, D.O.Templeton, CA 934651477084580
  34. Degrasia Howard, MDBakersfield, CA 933011104993054
  35. Nathaniel Howard, MDOroville, CA 959661558325787
  36. Patricia Hsia, MDFontana, CA 923351174694087
  37. Thomas Hsia, MDSanta Maria, CA 934581508894486
  38. Angela HsuSan Jose, CA 951161346773199
  39. Chun Hsu, MDTorrance, CA 905051669597746
  40. Chun Hsu, M.D.Monterey Park, CA 917541902831894
  41. Ronald Hsu, MDRoseville, CA 956611700912318
  42. William Hsueh, M.D.Visalia, CA 932911972948164
  43. Madeleine HuSan Francisco, CA 941431841940996
  44. Mary Hu, M.D.Fremont, CA 945381659339059
  45. Richard Hu, MDSylmar, CA 913421477622660
  46. Steve HuMonterey, CA 939401568880508
  47. Meng Hua, MDSan Diego, CA 921201962502773
  48. Annsa Huang, MDSan Francisco, CA 941211861881658
  49. Edward Huang, MD, MPHMountain View, CA 940401275682650
  50. Galen Huang, MDRiverside, CA 925061316971765

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.