Omeprazole (Prilosec) Prescribers in California

1. 1
   Dae RheemM.D.

   Gastroenterology Physician · Los Angeles, CA

   4,370 Medicare Part D claims (2024)

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2. 2
   Armine NazaryanM.D.

   Family Medicine Physician · Glendale, CA

   3,754 Medicare Part D claims (2024)

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3. 3
   Vagharshak PilossyanM.D.

   Family Medicine Physician · Van Nuys, CA

   2,778 Medicare Part D claims (2024)

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4. 4
   Arutyun TopsakalyanMD

   General Practice Physician · Glendale, CA

   2,147 Medicare Part D claims (2024)

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5. 5
   Garbis ApelianMD

   Family Medicine Physician · Van Nuys, CA

   2,102 Medicare Part D claims (2024)

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6. 6
   Diana SayadyanM.D.

   Family Medicine Physician · La Canada, CA

   1,862 Medicare Part D claims (2024)

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7. 7
   Tung NguyenDO

   Family Medicine Physician · San Jose, CA

   1,647 Medicare Part D claims (2024)

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8. 8
   Vardui ArutyunyanMD

   Family Medicine Physician · Glendale, CA

   1,514 Medicare Part D claims (2024)

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9. 9
   Zaven ArslanianM.D.

   General Practice Physician · Glendale, CA

   1,509 Medicare Part D claims (2024)

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10. 10
    Sonwoo LeeMD

    Rheumatology Physician · Los Angeles, CA

    1,486 Medicare Part D claims (2024)

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11. 11
    Zarine Ter-PoghosyanM.D.

    Family Medicine Physician · Burbank, CA

    1,473 Medicare Part D claims (2024)

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12. 12
    Asha Pritpal SidhuMD

    Internal Medicine Physician · Fresno, CA

    1,442 Medicare Part D claims (2024)

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13. 13
    Samvel HmayakyanM.D.

    Family Medicine Physician · Glendale, CA

    1,410 Medicare Part D claims (2024)

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14. 14
    Nouneh DanielyanM.D.

    Geriatric Medicine (Internal Medicine) Physician · Los Angeles, CA

    1,407 Medicare Part D claims (2024)

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15. 15
    Jason PaekM.D.

    Internal Medicine Physician · Rowland Heights, CA

    1,364 Medicare Part D claims (2024)

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16. 16
    Paramvir RahalMD

    Gastroenterology Physician · Bakersfield, CA

    1,347 Medicare Part D claims (2024)

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17. 17
    Soo Kang

    Internal Medicine Physician · Buena Park, CA

    1,268 Medicare Part D claims (2024)

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18. 18
    Harold HsuM.D.

    Internal Medicine Physician · Rosemead, CA

    1,265 Medicare Part D claims (2024)

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19. 19
    Sang Baik

    Internal Medicine Physician · Los Angeles, CA

    1,223 Medicare Part D claims (2024)

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20. 20
    Shang WuM.D.

    Gastroenterology Physician · Hacienda Heights, CA

    1,220 Medicare Part D claims (2024)

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21. 21
    Simrita RahalM.D.

    Gastroenterology Physician · Bakersfield, CA

    1,210 Medicare Part D claims (2024)

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22. 22
    Jorge RoblesMD

    Family Medicine Physician · El Centro, CA

    1,206 Medicare Part D claims (2024)

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23. 23
    Robert MoghimiM.D.

    Gastroenterology Physician · Simi Valley, CA

    1,188 Medicare Part D claims (2024)

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24. 24
    Mahomed SulimanMD

    Gastroenterology Physician · El Centro, CA

    1,187 Medicare Part D claims (2024)

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25. 25
    Paramjit TakharMD

    Family Medicine Physician · Sacramento, CA

    1,163 Medicare Part D claims (2024)

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26. 26
    Edmund YaoM.D.

    Internal Medicine Physician · Stockton, CA

    1,150 Medicare Part D claims (2024)

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27. 27
    Jaime EstradaMD

    Family Medicine Physician · Calexico, CA

    1,143 Medicare Part D claims (2024)

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28. 28
    Hussein El-NewihiMD

    Gastroenterology Physician · El Centro, CA

    1,141 Medicare Part D claims (2024)

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29. 29
    Razmik OhanjanianMD

    Cardiovascular Disease Physician · Glendale, CA

    1,130 Medicare Part D claims (2024)

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30. 30
    Han DuongM.D.& D.O.

    Internal Medicine Physician · Rosemead, CA

    1,120 Medicare Part D claims (2024)

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31. 31
    Jason YipM.D.

    Gastroenterology Physician · Anaheim, CA

    1,116 Medicare Part D claims (2024)

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32. 32
    Ajay MekaM.D.

    Internal Medicine Physician · Santa Ana, CA

    1,109 Medicare Part D claims (2024)

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33. 33
    Doeyoung KimMD

    Internal Medicine Physician · Los Angeles, CA

    1,087 Medicare Part D claims (2024)

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34. 34
    Elvis TansonD.O.

    Family Medicine Physician · Stockton, CA

    1,083 Medicare Part D claims (2024)

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35. 35
    Abbas HasnainM.D., J.D.

    Internal Medicine Physician · Fresno, CA

    1,056 Medicare Part D claims (2024)

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36. 36
    Tsovinar TekkelianM.D.

    Clinical Cardiac Electrophysiology Physician · Glendale, CA

    1,048 Medicare Part D claims (2024)

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37. 37
    Ferdinant SaranMD

    Specialist · Glendale, CA

    1,041 Medicare Part D claims (2024)

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38. 38
    Justin RheemM.D.

    Internal Medicine Physician · Los Angeles, CA

    1,025 Medicare Part D claims (2024)

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39. 39
    Weiwen ZhengM.D.

    Family Medicine Physician · San Francisco, CA

    1,021 Medicare Part D claims (2024)

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40. 40
    Gevork MaissianD.O.

    Internal Medicine Physician · Glendale, CA

    1,021 Medicare Part D claims (2024)

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41. 41
    Huan LeM.D.

    Pulmonary Disease Physician · San Diego, CA

    1,021 Medicare Part D claims (2024)

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42. 42
    Fariba JavaherianM.D

    Dermatology Physician · Northridge, CA

    1,020 Medicare Part D claims (2024)

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43. 43
    Jose BautistaM.D.

    Internal Medicine Physician · Sanger, CA

    999 Medicare Part D claims (2024)

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44. 44
    Tri-Dung HoangM.D.

    Internal Medicine Physician · Sacramento, CA

    991 Medicare Part D claims (2024)

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45. 45
    Anahit BlikianM.D.

    Adolescent Medicine (Family Medicine) Physician · Glendale, CA

    991 Medicare Part D claims (2024)

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46. 46
    Chaewon SongMD

    Geriatric Medicine (Internal Medicine) Physician · Garden Grove, CA

    986 Medicare Part D claims (2024)

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47. 47
    Sunny WongD.O.

    Internal Medicine Physician · Monterey Park, CA

    983 Medicare Part D claims (2024)

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48. 48
    Seung KimM.D.

    Geriatric Medicine (Internal Medicine) Physician · Los Angeles, CA

    975 Medicare Part D claims (2024)

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49. 49
    Marina KovalevskyM.D.

    Internal Medicine Physician · Los Angeles, CA

    970 Medicare Part D claims (2024)

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50. 50
    Shovek Boyadjian

    Family Medicine Physician · Panorama City, CA

    966 Medicare Part D claims (2024)

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Medicare Part D only. Counts and ordering reflect Medicare Part D claims (2024) from CMS — they exclude cash-pay, commercial, and Medicaid prescriptions and undercount cash-pay categories (e.g. GLP-1 weight-loss, testosterone). Not a quality or "best" ranking. Absence does not mean a provider does not prescribe omeprazole. Source: CMS NPPES (June 2026).