Losartan (Cozaar) Prescribers in California

1. 1
   Armine NazaryanM.D.

   Family Medicine Physician · Glendale, CA

   3,470 Medicare Part D claims (2024)

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2. 2
   Tai WuMD

   Internal Medicine Physician · San Gabriel, CA

   2,875 Medicare Part D claims (2024)

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3. 3
   Soo Kang

   Internal Medicine Physician · Buena Park, CA

   2,469 Medicare Part D claims (2024)

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4. 4
   Kelvin MaiDO

   Internal Medicine Physician · Santa Ana, CA

   2,388 Medicare Part D claims (2024)

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5. 5
   Paul ChangM.D.

   Internal Medicine Physician · Buena Park, CA

   2,384 Medicare Part D claims (2024)

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6. 6
   Tung NguyenDO

   Family Medicine Physician · San Jose, CA

   2,303 Medicare Part D claims (2024)

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7. 7
   Michael DaoM.D.

   Internal Medicine Physician · Garden Grove, CA

   2,144 Medicare Part D claims (2024)

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8. 8
   Bao NguyenMD

   Family Medicine Physician · Stockton, CA

   2,035 Medicare Part D claims (2024)

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9. 9
   Garbis ApelianMD

   Family Medicine Physician · Van Nuys, CA

   1,924 Medicare Part D claims (2024)

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10. 10
    Asha Pritpal SidhuMD

    Internal Medicine Physician · Fresno, CA

    1,879 Medicare Part D claims (2024)

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11. 11
    Samvel HmayakyanM.D.

    Family Medicine Physician · Glendale, CA

    1,872 Medicare Part D claims (2024)

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12. 12
    Young-Jik LeeM.D.

    Internal Medicine Physician · Los Angeles, CA

    1,866 Medicare Part D claims (2024)

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13. 13
    Sang Baik

    Internal Medicine Physician · Los Angeles, CA

    1,861 Medicare Part D claims (2024)

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14. 14
    Hong KimM.D.

    Nephrology Physician · Garden Grove, CA

    1,820 Medicare Part D claims (2024)

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15. 15
    Ajay MekaM.D.

    Internal Medicine Physician · Santa Ana, CA

    1,819 Medicare Part D claims (2024)

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16. 16
    Tam NguyenD.O.

    Internal Medicine Physician · San Jose, CA

    1,814 Medicare Part D claims (2024)

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17. 17
    Chaewon SongMD

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

    1,792 Medicare Part D claims (2024)

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18. 18
    Aziz KamaliM.D.

    Internal Medicine Physician · Stockton, CA

    1,714 Medicare Part D claims (2024)

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19. 19
    Abbas HasnainM.D., J.D.

    Internal Medicine Physician · Fresno, CA

    1,707 Medicare Part D claims (2024)

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20. 20
    Mary TranD.O.

    Family Medicine Physician · Garden Grove, CA

    1,698 Medicare Part D claims (2024)

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21. 21
    William SimMD

    Internal Medicine Physician · Downey, CA

    1,669 Medicare Part D claims (2024)

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22. 22
    Jason PaekM.D.

    Internal Medicine Physician · Rowland Heights, CA

    1,644 Medicare Part D claims (2024)

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23. 23
    Yu YaoM.D.

    Internal Medicine Physician · San Gabriel, CA

    1,605 Medicare Part D claims (2024)

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24. 24
    Arutyun TopsakalyanMD

    General Practice Physician · Glendale, CA

    1,585 Medicare Part D claims (2024)

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25. 25
    Zarine Ter-PoghosyanM.D.

    Family Medicine Physician · Burbank, CA

    1,569 Medicare Part D claims (2024)

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26. 26
    Taymour MalakM.D.

    Family Medicine Physician · Stockton, CA

    1,565 Medicare Part D claims (2024)

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27. 27
    Joann NguyenM.D

    Family Medicine Physician · San Jose, CA

    1,559 Medicare Part D claims (2024)

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28. 28
    Zhaoyang PanM.D.

    General Practice Physician · Los Angeles, CA

    1,547 Medicare Part D claims (2024)

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29. 29
    Bo HuynhM.D.

    Family Medicine Physician · Rosemead, CA

    1,526 Medicare Part D claims (2024)

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30. 30
    Sonwoo LeeMD

    Rheumatology Physician · Los Angeles, CA

    1,509 Medicare Part D claims (2024)

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31. 31
    Dan TranM.D.

    Geriatric Medicine (Internal Medicine) Physician · Rosemead, CA

    1,488 Medicare Part D claims (2024)

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32. 32
    Weiwen ZhengM.D.

    Family Medicine Physician · San Francisco, CA

    1,480 Medicare Part D claims (2024)

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33. 33
    Su LeeM.D.

    Internal Medicine Physician · San Gabriel, CA

    1,480 Medicare Part D claims (2024)

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34. 34
    Kien TranMD

    Internal Medicine Physician · Tustin, CA

    1,471 Medicare Part D claims (2024)

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35. 35
    Oscar ChienM.D.

    Geriatric Medicine (Internal Medicine) Physician · San Gabriel, CA

    1,463 Medicare Part D claims (2024)

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36. 36
    Kevin VuongNP

    Nurse Practitioner · Sacramento, CA

    1,448 Medicare Part D claims (2024)

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37. 37
    Deepak KhannaM.D.

    Cardiovascular Disease Physician · Oroville, CA

    1,437 Medicare Part D claims (2024)

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38. 38
    Gustin HoM.D.

    Internal Medicine Physician · San Francisco, CA

    1,432 Medicare Part D claims (2024)

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39. 39
    Larry ChanD.O.

    Interventional Cardiology Physician · Upland, CA

    1,387 Medicare Part D claims (2024)

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40. 40
    Richard HuynhMD

    Family Medicine Physician · San Francisco, CA

    1,377 Medicare Part D claims (2024)

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41. 41
    Thoi LienM.D.

    Family Medicine Physician · Rosemead, CA

    1,373 Medicare Part D claims (2024)

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42. 42
    John LeeMD

    Internal Medicine Physician · Fullerton, CA

    1,372 Medicare Part D claims (2024)

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43. 43
    Bruce BenedickM.D.

    Cardiovascular Disease Physician · E Palo Alto, CA

    1,369 Medicare Part D claims (2024)

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44. 44
    Jun ChiongM.D., M.P.H.

    Internal Medicine Physician · Redlands, CA

    1,368 Medicare Part D claims (2024)

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45. 45
    Rong ShenMD

    Adult Medicine Physician · San Francisco, CA

    1,366 Medicare Part D claims (2024)

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46. 46
    Mohsen El RamahM.D.

    Nephrology Physician · El Centro, CA

    1,361 Medicare Part D claims (2024)

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47. 47
    Tri-Dung HoangM.D.

    Internal Medicine Physician · Sacramento, CA

    1,348 Medicare Part D claims (2024)

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48. 48
    Curtiss CombsM.D.

    Family Medicine Physician · Temecula, CA

    1,346 Medicare Part D claims (2024)

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49. 49
    Huynh TranMD, DPD

    Rheumatology Physician · Rosemead, CA

    1,337 Medicare Part D claims (2024)

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50. 50
    Li LiuM.D.

    Internal Medicine Physician · Monterey Park, CA

    1,334 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 losartan. Source: CMS NPPES (June 2026).