NPPES file of Aug 9, 2026

Pediatric Gastroenterology Physician in California

264 NPPES records list pediatric gastroenterology physician with a practice address in California, 0.7 per 100,000 residents, the 19th highest rate of 50. Los Angeles and Palo Alto have the most; each record links to the provider's NPI and the California license search. Page 5 of 6.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0206X · 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, 45

  1. Los Angeles45
  2. Palo Alto44
  3. San Diego41
  4. Sacramento19
  5. Madera15

Pediatric Gastroenterology Physician records in California

  1. Shervin Rabizadeh, M.D.Los Angeles, CA 900481992851877
  2. Kevin Ratnasamy, MDPalo Alto, CA 943041598325813
  3. Edward Rich, MDOakland, CA 946111427136225
  4. Jorge Rodriguez, M.D.Panorama City, CA 914021770783466
  5. Michelle Rook, M.D.Palo Alto, CA 943041134369903
  6. Michael Rosen, MDPalo Alto, CA 943041073660890
  7. Blake RosenthalLos Angeles, CA 900271497384481
  8. Robert Rothbaum, M.D.Oakland, CA 946091326066887
  9. Colin Rudolph, M.D.San Francisco, CA 941181073564548
  10. Rachel Ruiz, M.D.Palo Alto, CA 943041891131611
  11. Mary Sawh, MDSacramento, CA 958161134531254
  12. Daphne Say, M.D.Sacramento, CA 958171982913893
  13. Kathleen Schwarz, M.D.San Diego, CA 921231265465918
  14. Jeffrey Schwimmer, M.D.San Diego, CA 921231932270782
  15. Sarah Sela-Herman, MDOrange, CA 928681710075502
  16. Zachary Sellers, MD, PHDPalo Alto, CA 943041245597186
  17. Mala Setty, M.D.Oakland, CA 946091790720308
  18. Mohamed Shaban, M.D.Long Beach, CA 908061427477892
  19. Manoj Shah, MDLoma Linda, CA 923541770506321
  20. Sapana Shah, M.D.Palo Alto, CA 943041861690844
  21. Warren Shapiro, MDSan Diego, CA 921231477620300
  22. Anita Sharma, M.D.San Diego, CA 921231871989335
  23. Medha ShuklaLoma Linda, CA 923541013370204
  24. Eric Sibley, M.D, PH.D.Palo Alto, CA 943041740322791
  25. Anita Sicolo, M.D.Madera, CA 936361740472430
  26. Kimberly Silva, M.D.Los Angeles, CA 900951871891606
  27. Rodolfo SilvaLoma Linda, CA 923501396177127
  28. Frank Sinatra, MDLos Angeles, CA 900271922191493
  29. Mamata Sivagnanam, MDSan Diego, CA 921231932328747
  30. Daniel Sloven, MDSan Francisco, CA 941091013903855
  31. Nisreen Soufi, M.DDuarte, CA 910101790934800
  32. Barry Steinmetz, MDLong Beach, CA 908041003904814
  33. Emily Stryker, M.D.Palo Alto, CA 943041104211564
  34. Emi Suzuki, DOSacramento, CA 958171598260705
  35. Denah Taggart, M.D.Mountain View, CA 940401609029206
  36. Tamara Taketani, MDSanta Barbara, CA 931111669642385
  37. Edward Talya, M.D.Orangevale, CA 956621659687994
  38. James Tipton, MDPanorama City, CA 914021528116498
  39. Robert Tran, MDLong Beach, CA 908041265515704
  40. Stephen Trisno, MDPalo Alto, CA 943041871129866
  41. Trinh Truong, M.D.Sacramento, CA 958171972732295
  42. Elaheh Vahabnezhad, M.D.Los Angeles, CA 900951184816068
  43. Jorge Vargas, M.D.Los Angeles, CA 900951548362361
  44. Robert Venick, M.D.Los Angeles, CA 900951235166075
  45. Hongtao Wang, M.D., PH.D.Fresno, CA 937201750678017
  46. Michael Wang, DOOrange, CA 928681124373683
  47. Frederick Watanabe, MDLos Angeles, CA 900271750452702
  48. Emily Whang, M.D.Los Angeles, CA 900951235422197
  49. Rebecca Winderman, MDLos Angeles, CA 900271790068120
  50. Allison Wong, M.D.Sacramento, CA 958171982893517

Source: CMS NPPES, primary taxonomy 2080P0206X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 50 per resident

  1. Tennessee0.7
  2. Indiana0.7
  3. Iowa0.7
  4. California0.7
  5. Florida0.6
  6. Louisiana0.6
  7. 50 states and D.C.0.7

Source: CMS NPPES, primary taxonomy 2080P0206X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

61.7% of these records appear in a Medicare file, against 64.2% 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. California61.7%
  2. United States64.2%

Pediatric Gastroenterology Physician records in California, measured

  • In a Medicare file163 of 264 · 61.7% here, 64.2% nationally
  • In the CMS Doctors and Clinicians file78 · 29.5% here, 31.4% nationally
  • Not updated in five years or more145 · 54.9% here, 51.8% nationally
  • Median graduation year2007 · the 78 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0206X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

264 NPPES records list pediatric gastroenterology physician (2080P0206X) as their primary taxonomy with a practice address in California: 0.7 per 100,000 residents against 0.7 nationally (50 states and D.C.). Los Angeles has 45 of them (17%).

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. Texas190
  2. New York182
  3. Pennsylvania163
  4. Florida145

States with a similar rate per 100,000

  1. Iowa0.7
  2. Indiana0.7
  3. Tennessee0.7
  4. Louisiana0.6

The largest states

  1. Texas190
  2. New York182
  3. Pennsylvania163
  4. Florida145
  5. Ohio141

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.