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 36 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. Jeffrey Singerman, M.D.Castro Valley, CA 945461932325446
  2. Amanpal Singh, MDCarmichael, CA 956081184829749
  3. Davinder Singh, M.D.Fountain Valley, CA 927081114085362
  4. Dupinder Singh, M.D.Duarte, CA 910101245671833
  5. Emily Singh, M.D.San Diego, CA 921281548370935
  6. Gurcharn Singh, MDLancaster, CA 935341871670091
  7. Gurpreet Singh, MDTurlock, CA 953821194780999
  8. Gurpreet Singh, MDTruckee, CA 961611265629828
  9. Hardeep Singh, M.D.Orange, CA 928681275544074
  10. Harpriya Singh, MDPleasanton, CA 945881699919100
  11. Kavita Singh, MDAnaheim, CA 928011255597985
  12. Mandeep Singh, MDFresno, CA 937201669638391
  13. Maneesh Singh, MDSan Francisco, CA 941431548588460
  14. Paramvir Singh, M.D.Redding, CA 960011346213444
  15. Shelly Singh, D.O.Lancaster, CA 935341760778922
  16. Sital Singh, M.D.Lodi, CA 952401902172406
  17. Sundeep Singh, M.D.Palo Alto, CA 943051811197866
  18. Virmeet Singh, M.D.Mather, CA 956551174591838
  19. Simi Singh-Mitchell, M.D.Beverly Hills, CA 902111215227459
  20. Ajeet Singhvi, M.D.Hemet, CA 925431477653160
  21. Preetika Sinh, M.D.La Jolla, CA 920371497047369
  22. Sidhartha Sinha, MDStanford, CA 943051659530277
  23. Matthew Sitzer, MDSan Diego, CA 921201871641860
  24. Anna SkayValencia, CA 913551447522719
  25. Matthew Skinner, M.D.La Jolla, CA 920371609133750
  26. Jonathan Skupsky, MD/PHDOrange, CA 928681396038477
  27. Enrique Slodownik, M.D.Beverly Hills, CA 902111962414177
  28. Rebecca Slomovic, M.D.Los Angeles, CA 900331134420904
  29. Burton Smith, MDSignal Hill, CA 907551639242837
  30. Michael Smith, M.D.Monterey, CA 939401285644922
  31. William Snape, M.D.San Francisco, CA 941151548282999
  32. Adam Snyder, M.D.Glendora, CA 917401063704864
  33. Richard Snyder, MDSan Diego, CA 921231255340477
  34. Eiei Soe, M.D.Riverside, CA 925051780996751
  35. Roy Soetikno, MDMountain View, CA 940401922119916
  36. Tova SoferBeverly Hills, CA 902111205169083
  37. Edy Soffer, M.D.Los Angeles, CA 900331013945260
  38. Merle Sogge, M.D.Fairfield, CA 945331619993243
  39. Pejman Solaimani, M.DRiverside, CA 925061750647418
  40. Mohammad Soleimanpour, M.D.La Mesa, CA 919411194714527
  41. Andrew Soll, MDLos Angeles, CA 900951922028059
  42. Mordecai Solomon, D.O.Los Angeles, CA 900151902244106
  43. Sassan Soltani, M.D.Pasadena, CA 911051649244104
  44. Ma Somsouk, M.D.San Francisco, CA 941101437296431
  45. Erin Song, MDSan Diego, CA 921311275094344
  46. Jun Song, MDLoma Linda, CA 923501427674407
  47. Zhigang Song, M.D., PH.D.Anaheim, CA 928011437309440
  48. Irene Sonu, MDPalo Alto, CA 943051801100300
  49. Camille SoroudiLos Angeles, CA 900171164955977
  50. Kayvon Sotoudeh, M.D.Livermore, CA 945501659812857

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.