Amphetamine/dextroamphetamine (Adderall, Adderall XR, Mydayis) Prescribers in California

1. 1
   Codie VassarM.D

   Psychiatry Physician · Orange, CA

   383 Medicare Part D claims (2024)

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2. 2
   Sandhya GudapatiM.D.

   Psychiatry Physician · Fullerton, CA

   369 Medicare Part D claims (2024)

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3. 3
   Richard GlassM.D.

   Psychiatry Physician · Greenbrae, CA

   324 Medicare Part D claims (2024)

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4. 4
   David Vargas

   Psychiatry Physician · San Francisco, CA

   267 Medicare Part D claims (2024)

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5. 5
   Lorna BarteM.D.

   Psychiatry Physician · Camarillo, CA

   262 Medicare Part D claims (2024)

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6. 6
   Andrea CarasqueroNP

   Psychiatric/Mental Health Nurse Practitioner · Aliso Viejo, CA

   250 Medicare Part D claims (2024)

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7. 7
   Paul CoronaM.D.

   Family Medicine Physician · Laguna Niguel, CA

   233 Medicare Part D claims (2024)

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8. 8
   Joseph WinerMD

   Psychiatry Physician · San Rafael, CA

   226 Medicare Part D claims (2024)

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9. 9
   Kenneth SokolskiM.D.

   Psychiatry Physician · Huntington Beach, CA

   220 Medicare Part D claims (2024)

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10. 10
    Daljit MacM.D.

    Psychiatry Physician · Agoura Hills, CA

    214 Medicare Part D claims (2024)

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11. 11
    Marie NayFNP

    Family Nurse Practitioner · Oroville, CA

    208 Medicare Part D claims (2024)

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12. 12
    Seamus ConnollyDO

    Psychiatry Physician · Indio, CA

    196 Medicare Part D claims (2024)

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13. 13
    Roy Del-RosarioM.D.

    Psychiatry Physician · Lancaster, CA

    189 Medicare Part D claims (2024)

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14. 14
    Stephen SignerMD CM

    Psychiatry Physician · San Diego, CA

    187 Medicare Part D claims (2024)

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15. 15
    Michael PoloM.D.

    Psychiatry Physician · Santa Barbara, CA

    187 Medicare Part D claims (2024)

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16. 16
    Paul RosandichMD

    Psychiatry Physician · Anaheim, CA

    186 Medicare Part D claims (2024)

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17. 17
    Raphael MorrisMD

    Psychiatry Physician · Del Mar, CA

    178 Medicare Part D claims (2024)

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18. 18
    Daniel BinusMD

    Psychiatry Physician · Auburn, CA

    177 Medicare Part D claims (2024)

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19. 19
    Mark HeniganD.O.

    Psychiatry Physician · Modesto, CA

    176 Medicare Part D claims (2024)

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20. 20
    Howard HicksMD

    Psychiatry Physician · San Diego, CA

    175 Medicare Part D claims (2024)

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21. 21
    Syam KunamMD

    Psychiatry Physician · Redlands, CA

    173 Medicare Part D claims (2024)

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22. 22
    John Keltner

    Psychiatry Physician · La Jolla, CA

    172 Medicare Part D claims (2024)

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23. 23
    Lewis LaneMD

    Psychiatry Physician · Dana Point, CA

    170 Medicare Part D claims (2024)

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24. 24
    Derek Gilbert

    Psychiatry Physician · Santa Rosa, CA

    169 Medicare Part D claims (2024)

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25. 25
    Dwight SievertM.D.

    Psychiatry Physician · Fresno, CA

    168 Medicare Part D claims (2024)

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26. 26
    Amy FriedenbergMD

    Psychiatry Physician · Anaheim, CA

    163 Medicare Part D claims (2024)

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27. 27
    Thomas JacksonMD

    Psychiatry Physician · Rancho Mirage, CA

    162 Medicare Part D claims (2024)

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28. 28
    Rebecca OttDNP RN APRN BC

    Psychiatric/Mental Health Nurse Practitioner · Rancho Mirage, CA

    156 Medicare Part D claims (2024)

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29. 29
    Yvette Holman

    Psychiatric/Mental Health Nurse Practitioner · Hawaiian Gardens, CA

    154 Medicare Part D claims (2024)

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30. 30
    Alan DruckerM.D.

    Psychiatry Physician · Palm Springs, CA

    152 Medicare Part D claims (2024)

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31. 31
    Ebrahim HazanyM.D.

    Psychiatry Physician · Newbury Park, CA

    152 Medicare Part D claims (2024)

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32. 32
    Margaret BaumanM.D.

    Psychiatry Physician · San Luis Obispo, CA

    151 Medicare Part D claims (2024)

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33. 33
    Tamiko GibsonN.P.

    Psychiatric/Mental Health Nurse Practitioner · Anaheim, CA

    149 Medicare Part D claims (2024)

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34. 34
    Yen Mey FungPHARM.D.

    Pharmacist · Santa Rosa, CA

    149 Medicare Part D claims (2024)

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35. 35
    Ji YooM.D.

    Psychiatry Physician · Vista, CA

    149 Medicare Part D claims (2024)

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36. 36
    Nandini RaoMD

    Psychiatry Physician · Santa Rosa, CA

    148 Medicare Part D claims (2024)

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37. 37
    Virginia Corpuz-ZabalaMD

    Psychiatry Physician · Roseville, CA

    148 Medicare Part D claims (2024)

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38. 38
    Daniel HackettMD

    Psychiatry Physician · Riverside, CA

    148 Medicare Part D claims (2024)

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39. 39
    Russell HubbardM.D.

    Psychiatry Physician · San Diego, CA

    147 Medicare Part D claims (2024)

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40. 40
    Rick JenkinsMD

    Psychiatry Physician · Long Beach, CA

    145 Medicare Part D claims (2024)

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41. 41
    Scott DewhirstM.D.

    Psychiatry Physician · Santa Barbara, CA

    144 Medicare Part D claims (2024)

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42. 42
    Levi HongsermeierPA

    Physician Assistant · Redding, CA

    141 Medicare Part D claims (2024)

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43. 43
    Ronald ThurstonMD

    Psychiatry Physician · Newbury Park, CA

    139 Medicare Part D claims (2024)

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44. 44
    Christopher O'CarrollM.D.

    Neurology Physician · Newport Beach, CA

    139 Medicare Part D claims (2024)

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45. 45
    Samuel GrigoryanNP

    Psychiatric/Mental Health Registered Nurse · Laguna Niguel, CA

    139 Medicare Part D claims (2024)

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46. 46
    Michael Zizmor

    General Practice Physician · Richmond, CA

    138 Medicare Part D claims (2024)

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47. 47
    Rodney CollinsMD

    Psychiatry Physician · Beverly Hills, CA

    138 Medicare Part D claims (2024)

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48. 48
    Margarita SomovaMD

    Psychiatry Physician · Los Angeles, CA

    134 Medicare Part D claims (2024)

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49. 49
    Samuel AlthauserD.O.

    Psychiatry Physician · Santa Barbara, CA

    133 Medicare Part D claims (2024)

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50. 50
    Thomas OkamotoM.D.

    Psychiatry Physician · Santa Ana, CA

    130 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 amphetamine/dextroamphetamine. amphetamine/dextroamphetamine 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).