Warfarin (Coumadin, Jantoven) Prescribers in Hawaii

1. 1
   Lissa Ishihara

   Pharmacist · Honolulu, HI

   139 Medicare Part D claims (2024)

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2. 2
   Robert GriesM.D.

   Geriatric Medicine (Family Medicine) Physician · Honolulu, HI

   132 Medicare Part D claims (2024)

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3. 3
   James MutoMD

   Cardiovascular Disease Physician · Kahului, HI

   108 Medicare Part D claims (2024)

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4. 4
   Eukesh Ranjit

   Family Medicine Physician · Honolulu, HI

   106 Medicare Part D claims (2024)

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5. 5
   Rosemarie ForondaAPRN

   Nurse Practitioner · Wailuku, HI

   97 Medicare Part D claims (2024)

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6. 6
   Donald TrallerP.A.-C

   Medical Physician Assistant · Lihue, HI

   92 Medicare Part D claims (2024)

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7. 7
   Drosie RosaroMD

   Internal Medicine Physician · Wailuku, HI

   91 Medicare Part D claims (2024)

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8. 8
   Timothy KimMD

   Internal Medicine Physician · Waipahu, HI

   84 Medicare Part D claims (2024)

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9. 9
   Sharon LawlerM.D.

   Internal Medicine Physician · Honolulu, HI

   80 Medicare Part D claims (2024)

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10. 10
    Hingson ChunM.D.

    Cardiovascular Disease Physician · Honolulu, HI

    80 Medicare Part D claims (2024)

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11. 11
    Kahealani RiveraMD

    Internal Medicine Physician · Honolulu, HI

    79 Medicare Part D claims (2024)

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12. 12
    Melvin WongMD

    Vascular Neurology Physician · Aiea, HI

    78 Medicare Part D claims (2024)

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13. 13
    Marcus IwaneM.D.

    Internal Medicine Physician · Kapolei, HI

    75 Medicare Part D claims (2024)

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14. 14
    Gregg YamadaM.D.

    Cardiovascular Disease Physician · Honolulu, HI

    73 Medicare Part D claims (2024)

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15. 15
    Nestor HeranaM.D.

    Internal Medicine Physician · Waianae, HI

    67 Medicare Part D claims (2024)

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16. 16
    Paul GrandonMD

    Internal Medicine Physician · Wailuku, HI

    65 Medicare Part D claims (2024)

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17. 17
    Lisa CamaraMD

    Internal Medicine Physician · Honolulu, HI

    62 Medicare Part D claims (2024)

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18. 18
    Edward ShenMD

    Cardiovascular Disease Physician · Honolulu, HI

    62 Medicare Part D claims (2024)

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19. 19
    Atsushi TerakuboMD

    Interventional Cardiology Physician · Honolulu, HI

    61 Medicare Part D claims (2024)

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20. 20
    Brandon KaiM.D.

    Interventional Cardiology Physician · Honolulu, HI

    60 Medicare Part D claims (2024)

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21. 21
    Megan WrightD.O.

    Family Medicine Physician · Wailuku, HI

    59 Medicare Part D claims (2024)

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22. 22
    Rachel LeeMD

    Internal Medicine Physician · Honolulu, HI

    58 Medicare Part D claims (2024)

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23. 23
    Lisa BarvilleMD

    Internal Medicine Physician · Kailua Kona, HI

    57 Medicare Part D claims (2024)

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24. 24
    Jaime WestlundNP

    Nurse Practitioner · Kailua Kona, HI

    56 Medicare Part D claims (2024)

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25. 25
    Melissa GoslandMD

    Family Medicine Physician · Kamuela, HI

    54 Medicare Part D claims (2024)

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26. 26
    Rodney OnoM.D.

    Internal Medicine Physician · Hilo, HI

    53 Medicare Part D claims (2024)

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27. 27
    Valynn ChongMD

    Internal Medicine Physician · Kaneohe, HI

    52 Medicare Part D claims (2024)

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28. 28
    Cherie RaffelsonMD

    Family Medicine Physician · Kapolei, HI

    51 Medicare Part D claims (2024)

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29. 29
    Wesley KaiM.D.

    Cardiovascular Disease Physician · Honolulu, HI

    51 Medicare Part D claims (2024)

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30. 30
    Joana MagnoMD

    Cardiovascular Disease Physician · Honolulu, HI

    50 Medicare Part D claims (2024)

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31. 31
    Michael BraunM.D.

    Internal Medicine Physician · Lihue, HI

    49 Medicare Part D claims (2024)

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32. 32
    William DangMD

    Cardiovascular Disease Physician · Honolulu, HI

    48 Medicare Part D claims (2024)

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33. 33
    Don MatsuuraMD

    Cardiovascular Disease Physician · Hilo, HI

    46 Medicare Part D claims (2024)

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34. 34
    Ryan SmithDO, FACC

    Cardiovascular Disease Physician · Kaneohe, HI

    45 Medicare Part D claims (2024)

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35. 35
    Brennen OwanDO

    Family Medicine Physician · Kapolei, HI

    44 Medicare Part D claims (2024)

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36. 36
    Mitchell MotookaMD

    Internal Medicine Physician · Honolulu, HI

    44 Medicare Part D claims (2024)

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37. 37
    Elizabeth QuinnMD

    Internal Medicine Physician · Honolulu, HI

    43 Medicare Part D claims (2024)

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38. 38
    Misao KawamuraMD

    Internal Medicine Physician · Honolulu, HI

    43 Medicare Part D claims (2024)

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39. 39
    Matthew YeeMD

    Internal Medicine Physician · Waipahu, HI

    43 Medicare Part D claims (2024)

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40. 40
    Anna RoweMD

    Family Medicine Physician · Hilo, HI

    43 Medicare Part D claims (2024)

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41. 41
    Kelly KawaokaM.D.

    Internal Medicine Physician · Waipahu, HI

    42 Medicare Part D claims (2024)

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42. 42
    Jocelyn ChangDO

    Geriatric Medicine (Family Medicine) Physician · Kapaau, HI

    41 Medicare Part D claims (2024)

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43. 43
    Meredith SolesMD

    Family Medicine Physician · Honolulu, HI

    41 Medicare Part D claims (2024)

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44. 44
    Sachin Gandhi RahmanM.D.

    Family Medicine Physician · Hilo, HI

    41 Medicare Part D claims (2024)

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45. 45
    Kenneth MinamiMD

    Internal Medicine Physician · Honolulu, HI

    40 Medicare Part D claims (2024)

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46. 46
    Julia ParkM.D.

    Internal Medicine Physician · Kaneohe, HI

    39 Medicare Part D claims (2024)

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47. 47
    Michael YeeM.D.,

    Cardiovascular Disease Physician · Kailua, HI

    38 Medicare Part D claims (2024)

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48. 48
    Arlene CadelinaMD

    Internal Medicine Physician · Honolulu, HI

    38 Medicare Part D claims (2024)

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49. 49
    Chelsea Ching-EndowMD

    Internal Medicine Physician · Honolulu, HI

    37 Medicare Part D claims (2024)

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50. 50
    Deborah Hirose-RidaoMD

    Internal Medicine Physician · Waipahu, HI

    35 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 warfarin. Source: CMS NPPES (June 2026).