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 2 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. Dhuha Alhankawi, M.D.La Mesa, CA 919421174937346
  2. Mohammed AliLoma Linda, CA 923571740644657
  3. Noor AliLos Angeles, CA 900271700273422
  4. Shazia Ali, M.D.Laguna Hills, CA 926531063616217
  5. Omeed Alipour, M.D.Irvine, CA 926181841731080
  6. Ousama Alkhatib, MDOrange, CA 928681093283905
  7. Satya Allaparthi, MDCastro Valley, CA 945461699960815
  8. James Allison, MDSan Francisco, CA 941101265535777
  9. Mazer Ally, M.D.Oceanside, CA 920541902018666
  10. Christopher Almario, M.D.Los Angeles, CA 900731568606036
  11. Jose Antonio Almario, MDSan Diego, CA 921231467815944
  12. Alan Altman, M.D.Rancho Mirage, CA 922701598002750
  13. Moe Amadpour, M.D.Simi Valley, CA 930651508965476
  14. Adnan Ameer, M.D.Los Angeles, CA 900171346554201
  15. Jim Amerian, M.D.Tarzana, CA 913561366400194
  16. Ashokkumar Amin, MDAnaheim, CA 928041831293109
  17. Sajni Amin, MDTemecula, CA 925921235766056
  18. Rohit Anand, MDWalnut Creek, CA 945981902243025
  19. Daniel Anderson, MDSan Diego, CA 921201932286549
  20. Frank Anderson, MDSanta Rosa, CA 954031487691192
  21. Joshua Anderson, M.D.Modesto, CA 953561013294768
  22. Deborah Anghesom-Negusse, MDRancho Cucamonga, CA 917301780862169
  23. David Anjelly, M.D.Santa Cruz, CA 950651629338603
  24. Gary Annunziata, D.O.Rancho Mirage, CA 922701861447302
  25. Peter Anton, MDLos Angeles, CA 900951487689410
  26. Ashwini Anumandla, M.D.Stockton, CA 952091225263692
  27. Christopher Aoki, M.D.Sacramento, CA 958171164460499
  28. Richard Aranda, MDLos Angeles, CA 900951104851138
  29. Jose Luis Aranez, M.D.Fountain Valley, CA 927081932466125
  30. Mohammad Arbabi, MDEncinitas, CA 920241609821040
  31. David Arenson, MDSacramento, CA 958191588790059
  32. Erick Argueta, MDFountain Valley, CA 927081083144638
  33. Razi Arifuddin, MDSanta Rosa, CA 954051124085410
  34. Calin Arimie, MDWest Hills, CA 913071831277847
  35. Shruti Ariza, MDOrange, CA 928681962657023
  36. Craig Aronchick, MDUkiah, CA 954821710071774
  37. Sartaj Arora, MDWest Covina, CA 917901841258340
  38. Ahilan Arulanandan, MDWhittier, CA 906061992148266
  39. Mehrdad Asgeri, MDPalm Springs, CA 922621063453868
  40. Ashraf Ashhab, MDAlhambra, CA 918011235581604
  41. Ashwin Ashok, M.D.Whittier, CA 906061134311236
  42. Heba Ashraf, MDIrvine, CA 926181720492267
  43. Alex Aslan, M.D.Concord, CA 945201538115571
  44. Nimah AtherTorrance, CA 905051720422736
  45. Dileep Atluri, M.D.Auburn, CA 956021245444983
  46. Ashish Atreja, MDStanford, CA 943051831152883
  47. Rajeev Attam, MDDowney, CA 902421184694309
  48. Tegpal AtwalSaint Helena, CA 945741275751869
  49. Alvin Au, MD FACGHanford, CA 932301477639193
  50. Amreet Aujla, M.D.Fresno, CA 937201033643671

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.