Methylphenidate (Ritalin, Concerta, Daytrana) Prescribers in Oklahoma

1. 1
   Francis ArmendarizM.D.

   Psychiatry Physician · Lawton, OK

   165 Medicare Part D claims (2024)

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2. 2
   David McelwainM.D.

   Psychiatry Physician · Tulsa, OK

   132 Medicare Part D claims (2024)

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3. 3
   Diana ChenMD

   Internal Medicine Physician · Tulsa, OK

   121 Medicare Part D claims (2024)

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4. 4
   Kari YoumanM.D.

   Psychiatry Physician · Tulsa, OK

   92 Medicare Part D claims (2024)

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5. 5
   Shreekumar VinekarMD

   Psychiatry Physician · Oklahoma City, OK

   83 Medicare Part D claims (2024)

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6. 6
   Weldon MallgrenD.O.

   Psychiatry Physician · Claremore, OK

   69 Medicare Part D claims (2024)

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7. 7
   David ShadidDO

   Psychiatry Physician · Tulsa, OK

   66 Medicare Part D claims (2024)

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8. 8
   Joe SpeerM.D.

   Psychiatry Physician · Tulsa, OK

   62 Medicare Part D claims (2024)

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9. 9
   Bradley McclureMD

   Psychiatry Physician · Tulsa, OK

   46 Medicare Part D claims (2024)

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10. 10
    John HarrisonD.O.

    Emergency Medicine Physician · Duncan, OK

    44 Medicare Part D claims (2024)

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11. 11
    Geetika VermaM.D.

    Child & Adolescent Psychiatry Physician · Oklahoma City, OK

    44 Medicare Part D claims (2024)

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12. 12
    Gregory ConnorM.D.

    Neurology Physician · Tulsa, OK

    42 Medicare Part D claims (2024)

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13. 13
    Darlene FosterMD

    Internal Medicine Physician · Oklahoma City, OK

    41 Medicare Part D claims (2024)

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14. 14
    Jacob HostetlerM.D.

    Family Medicine Physician · Grove, OK

    41 Medicare Part D claims (2024)

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15. 15
    Maria ArquisolaMD

    Psychiatry Physician · Broken Arrow, OK

    39 Medicare Part D claims (2024)

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16. 16
    Willis HollowayM.D.

    Psychiatry Physician · Oklahoma City, OK

    38 Medicare Part D claims (2024)

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17. 17
    Gregory GrantMD

    Family Medicine Physician · Shawnee, OK

    38 Medicare Part D claims (2024)

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18. 18
    John AndrusMD

    Geriatric Psychiatry Physician · Oklahoma City, OK

    37 Medicare Part D claims (2024)

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19. 19
    Kelli KoonsM.D.

    Internal Medicine Physician · Shawnee, OK

    37 Medicare Part D claims (2024)

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20. 20
    David GriffithsMD

    Family Medicine Physician · Tulsa, OK

    37 Medicare Part D claims (2024)

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21. 21
    Keith ConawayM.D.

    Family Medicine Physician · Shawnee, OK

    37 Medicare Part D claims (2024)

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22. 22
    Ethan LindseyMD

    Child & Adolescent Psychiatry Physician · Oklahoma City, OK

    36 Medicare Part D claims (2024)

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23. 23
    Gilbert EmdeM.D.

    Internal Medicine Physician · Stillwater, OK

    36 Medicare Part D claims (2024)

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24. 24
    Kent SmalleyM.D.

    Neuromusculoskeletal Medicine & OMM Physician · Edmond, OK

    35 Medicare Part D claims (2024)

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25. 25
    Charles Van TuylM.D.

    Psychiatry Physician · Bixby, OK

    35 Medicare Part D claims (2024)

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26. 26
    Eric BroadwayM.D.

    Psychiatry Physician · Stigler, OK

    35 Medicare Part D claims (2024)

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27. 27
    Frank KondosMD

    Family Medicine Physician · Tulsa, OK

    34 Medicare Part D claims (2024)

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28. 28
    Renato CaballeroMD

    Family Medicine Physician · Lawton, OK

    33 Medicare Part D claims (2024)

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29. 29
    Christy MayfieldMD

    Family Medicine Physician · Tulsa, OK

    33 Medicare Part D claims (2024)

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30. 30
    Peter StanbroM.D., M.P.H

    Child & Adolescent Psychiatry Physician · Edmond, OK

    33 Medicare Part D claims (2024)

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31. 31
    Gayathri DasharathyM.D.

    Addiction Medicine (Psychiatry & Neurology) Physician · Oklahoma City, OK

    33 Medicare Part D claims (2024)

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32. 32
    Cherian KarunapuzhaMD

    Neurology Physician · Oklahoma City, OK

    33 Medicare Part D claims (2024)

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33. 33
    Maroun TawkMD

    Pulmonary Disease Physician · Oklahoma City, OK

    31 Medicare Part D claims (2024)

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34. 34
    William OlivaM.D.

    Child & Adolescent Psychiatry Physician · Spencer, OK

    31 Medicare Part D claims (2024)

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35. 35
    Kash BiddleDO

    General Practice Physician · Broken Arrow, OK

    30 Medicare Part D claims (2024)

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36. 36
    Charles FerrellM.D.

    Family Medicine Physician · Hennessey, OK

    30 Medicare Part D claims (2024)

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37. 37
    Riley HillMD

    Internal Medicine Physician · Broken Arrow, OK

    30 Medicare Part D claims (2024)

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38. 38
    Colm MccauleyDO

    Family Medicine Physician · Cushing, OK

    30 Medicare Part D claims (2024)

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39. 39
    Andrew WallerMD

    Psychiatry Physician · Oklahoma City, OK

    29 Medicare Part D claims (2024)

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40. 40
    Brian LevyM.D.

    Internal Medicine Physician · Edmond, OK

    28 Medicare Part D claims (2024)

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41. 41
    Douglas BrantD.O.

    General Practice Physician · Drumright, OK

    28 Medicare Part D claims (2024)

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42. 42
    Douglas BrantM.D.

    Family Medicine Physician · Bethany, OK

    28 Medicare Part D claims (2024)

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43. 43
    Robert MortonMD

    Psychiatry Physician · Ada, OK

    27 Medicare Part D claims (2024)

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44. 44
    Lawren MeridethM D

    Psychiatry Physician · Norman, OK

    27 Medicare Part D claims (2024)

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45. 45
    Bruce MackeyMD

    Pain Medicine Physician · Edmond, OK

    27 Medicare Part D claims (2024)

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46. 46
    John RahhalMD

    Psychiatry Physician · Oklahoma City, OK

    26 Medicare Part D claims (2024)

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47. 47
    Charles CobbMD

    Psychiatry Physician · Tulsa, OK

    26 Medicare Part D claims (2024)

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48. 48
    James SerattMD

    Family Medicine Physician · Tahlequah, OK

    26 Medicare Part D claims (2024)

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49. 49
    Charles LesterMD

    Psychiatry Physician · Muskogee, OK

    26 Medicare Part D claims (2024)

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50. 50
    David RingDO

    Family Medicine Physician · Pryor, OK

    26 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 methylphenidate. methylphenidate is a Schedule II controlled substance; this is a factual claims directory only — not medical advice, not an endorsement, and not instructions for obtaining any medication. Source: CMS NPPES (June 2026).