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 20 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. Anshu Kumar, MDBellflower, CA 907061265509095
  2. Mrudula Kumar, MDDublin, CA 945681871808790
  3. Piyush Kumar, MDEncinitas, CA 920241144305566
  4. Rashmi Kumar, MDIrvine, CA 926181396007068
  5. Radhika Kumari, MDMountain View, CA 940401275738445
  6. Thomas Kun, M.D.Los Angeles, CA 900641508841321
  7. Henry Kung, M.D.Walnut Creek, CA 945981518941673
  8. David Kunkel, M.D.San Diego, CA 921031902056245
  9. Alexander Kuo, MDSacramento, CA 958171992122196
  10. Norman Kuo, M.D.La Palma, CA 906231548338189
  11. Selena KuoLa Jolla, CA 920371174029821
  12. Richard Kuritzkes, MDBurbank, CA 915051740385418
  13. Michael Kurtz, M.D.Oceanside, CA 920561487623955
  14. Vinod Kurupath, M.D.Berkeley, CA 947051093972382
  15. Michael Kushlan, M.D.San Jose, CA 951241538273073
  16. Geeta Kutty, M.DSan Jose, CA 951161821386962
  17. Paul Kwo, M.D.Stanford, CA 943051578527008
  18. Karl Kwok, MDLos Angeles, CA 900271457569626
  19. Annette Kwon, MDSan Francisco, CA 941151417009630
  20. Joshua KwonOrange, CA 928681053870121
  21. Pyoung Kwon, MDLos Angeles, CA 900201326054537
  22. Allison Kwong, MDStanford, CA 943051346515426
  23. Wilson Kwong, M.D.La Jolla, CA 920371134389653
  24. Dean La Barba, MDBurbank, CA 915051639674450
  25. Uri Ladabaum, MDStanford, CA 943051245288059
  26. Jay LadenheimMountain View, CA 940401932117447
  27. Shahin Laghaee, MDOakdale, CA 953611487611026
  28. John Lah, MDWhittier, CA 906031437221272
  29. Daniel Lahana, MDBeverly Hills, CA 902101558450700
  30. Chia Chi Lai, M.D.Monterey Park, CA 917541043238413
  31. Jennifer Lai, M.D.Stanford, CA 943051093031155
  32. Michael Lajin, M.D.La Mesa, CA 919421467411702
  33. Adrianne Lajoie, M.D.Encinitas, CA 920241225253651
  34. Angela LamSan Francisco, CA 941151578925517
  35. Eugene Lam, MDLa Quinta, CA 922531043257769
  36. Henry Lam, DOTorrance, CA 905021457972648
  37. Robert Lam, M.D.Santa Rosa, CA 954031487210670
  38. Thomas Lam, M.D.Alhambra, CA 918011437185295
  39. Gerardo Lamiel, MDRoseville, CA 956611508944273
  40. Richard Landres, M.D.French Camp, CA 952311356372973
  41. Jill Lane, MDLa Jolla, CA 920371083602338
  42. Will Lane, M.D.Walnut Creek, CA 945981548244684
  43. Daisy Lankarani, M.D.Santa Monica, CA 904041881078467
  44. Olivia Lanser, MDLa Jolla, CA 920371902427214
  45. Gieric LaputLos Angeles, CA 900331346604451
  46. Alan Larson, MDPoway, CA 920641396755831
  47. Thomas LarsonSanta Cruz, CA 950651427038017
  48. Edward Laurance, MDSierra Madre, CA 910241790780799
  49. Judy Law-Torok, M.D.Torrance, CA 905051629134770
  50. Michael Lawson, MDSacramento, CA 958171245318922

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.