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 35 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. Kenneth Shan, MDArcadia, CA 910071629605431
  2. Ling Shao, M.D.,PH.D.Los Angeles, CA 900331124261417
  3. Paul ShaoLos Angeles, CA 900951215431135
  4. Rimma Shaposhnikov, M.D.Glendale, CA 912011497886220
  5. Edward Share, M.D.Los Angeles, CA 900481093729675
  6. Gobind Sharma, M.D.Beverly Hills, CA 902111780998245
  7. Priya SharmaLaguna Hills, CA 926531205396827
  8. Rishi Sharma, M.D.Walnut Creek, CA 945981992969281
  9. Omid Shaye, M.D.Garden Grove, CA 928451720267990
  10. Sarah Sheibani, M.D.Los Angeles, CA 900331891975967
  11. Abdul Sheikh, MDFresno, CA 937201780762500
  12. Muhammad Sheikh, M.D.Fresno, CA 937201538194048
  13. Rafiq Sheikh, MDWoodland, CA 956951699853325
  14. Salim Shelby, M.D.Danville, CA 945261215948161
  15. Dennis Shen, MDSan Francisco, CA 941091316049190
  16. Huafeng Shen, M.D.Murrieta, CA 925631780950105
  17. Jeffrey Sherman, MDLos Angeles, CA 900481114054046
  18. Nirali Sheth, DOValencia, CA 913551659831097
  19. Katerina Shetler, MDMountain View, CA 940401699972927
  20. Akshay ShettyLos Angeles, CA 900951265790687
  21. Christine Shieh, MDWalnut Creek, CA 945981013414465
  22. Eugenie ShiehSan Jose, CA 951161194960013
  23. David Shields, MDStanford, CA 943051578671608
  24. Michael Shiffman, MDEncino, CA 914361497719512
  25. Michael Shim, M.D.Oceanside, CA 920561851503353
  26. Andrea Shin, MDLos Angeles, CA 900951316108418
  27. Jason Shin, M. D.Pomona, CA 917671316926678
  28. Alex Shindel, M.D.Whittier, CA 906061497013759
  29. Neal Shindel, M.D.Whittier, CA 906031174612113
  30. Waleed Shindy, M.D.Pasadena, CA 911051528033693
  31. Farah Shirazi, MDLos Angeles, CA 900331285169466
  32. Lyle Shlager, MDSan Francisco, CA 941151558449140
  33. Homayoun Shojamanesh, M.D.Mather, CA 956551306959275
  34. Alexander Shpaner, M.D.San Diego, CA 921201538334974
  35. Manish Shrestha, M.D.Laguna Hills, CA 926531407135411
  36. Daniel Shue, MDTorrance, CA 905051487974473
  37. Shahid Sial, M.D.Los Angeles, CA 900171750381844
  38. Derrick Siao, M.D.Santa Clara, CA 950511073849261
  39. Pradeep Siddappa, MDStanford, CA 943051922551662
  40. Khaleeq Siddiqui, M.D.Stockton, CA 952041174803563
  41. Shanti Siddiqui, M.D.Jackson, CA 956421679657860
  42. Osama Sidhom, MDWest Corina, CA 917901649238148
  43. Simran SidhuSalinas, CA 939011821445040
  44. Cameron Sikavi, MDTorrance, CA 905051114303302
  45. Robert Silva, MDDavis, CA 956161902997935
  46. Karen Simon, M.D.Oxnard, CA 930301548384167
  47. Gilbert Simoni, M.D., FACGThousand Oaks, CA 913601316922958
  48. Nicole Simpson, M.DMountain View, CA 940401497798904
  49. Peter Simpson, MD, MPHMountain View, CA 940401043499478
  50. Edward Singer, M.D.Chula Vista, CA 919111679569743

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.