Program Leadership
Arunditi Xantus, MD
Assistant Professor of Psychiatry and Behavioral Medicine
General Psychiatry Residency
Phone: 903-877-7168
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Robert Wieck, DO
Assistant Professor of Psychiatry and Behavioral Medicine
Psychiatry Residency
Phone: 903-877-7168
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Stephanie Tuma, BAAS
Program Coordinator
Phone: 903-877-7278
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Jamon Blood, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Ralph de Similien, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry
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Tiya Johnson, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Katherine Kerr, MDAssistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Andrew Oshiro, MD
Assistant Professor of Psychiatry and Behavioral Medicine
General Psychiatry
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John Pogue, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry
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Phyllis Ramirez, MD
Assistant Professor
Adult Psychiatry
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Brandon Riley, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry
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Ray Scardina, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Ndukwe Uduma, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Psychology
Stephanie Simmons, PsyD
Program Director, Assistant Professor, Clinical Psychology
Psychology Internship & Fellowship
Phone: 903-877-7679
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Halle Ross-Young, PsyD
Assistant Professor, Psychiatry & Behavioral Medicine
Inpatient Psychology
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Andrew L. Schmitt, PhD
Psychology Section Chief, Director of Neuropsychology
Psychology Internship & Fellowship
Phone: 903-877-8721
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Pelin Strebler, PhD
Assistant Professor, Neuropsychology
Psychology Internship & Fellowship
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Ronica Harper, MBA
Program Manager
Psychology Internship & Fellowship
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