VUMC

  • Megan Simmons, DNP, PMHNP

    Assistant Professor of Nursing & Psychiatry

    Dr. Simmons joined the Vanderbilt School of Nursing faculty in 2013, and was granted a secondary appointment in the Department of Psychiatry in 2015.  She has been a board certified Psychiatric Mental Health Nurse Practitioner (PMHNP) since 2005, and she received the Doctor of Nursing Practice (DNP) degree from Vanderbilt in 2013.  The majority of her clinical experience has been with older adults in the outpatient and long-term care settings, and she currently practices in the outpatient geriatric psychiatry clinic.  In 2014, she was named the March of Dimes Middle Tennessee Behavioral Health Nurse of the Year, she co-founded and chaired the Geropsych Special Interest Group in the Geronotological Advanced Practice Nurses Association (GAPNA), and she is a member of Vanderbilt’s Institutional Review Board Health Sciences 3 committee.

  • Mi Yu, M.D.

    Dr. Yu is a  Psychiatrist in private practice. She is a Board-Certified Adult and Geriatric Psychiatrist and Psychoanalyst. She is a member of the International Psychoanalytic Association (IPA) Committee on Psychoanalytic Perspectives on Ageing of Patients & Analysts. She is on the faculty of the Advanced Psychodynamic Psychotherapy (APP) Program at the Nashville Center for Psychoanalysis & Psychodynamic Psychotherapy, and the China American Psychoanalytic Alliance (CAPA). 

  • Harry Gwirtsman, M.D.

    Associate Professor of Psychiatry

    Dr. Gwirtsman has been a member of the faculty since 1995. He was Director of the Division of Geriatric Psychiatry at the Vanderbilt School of Medicine from 1998 until 2006. He currently serves as the Director of Inpatient Services and the Psychiatry-Medical Unit (PMU), as well as the Consultation-Liaison Service, and is also Director of the Geriatric Psychiatry Program at the Nashville VA-Tennessee Valley Healthcare System. He is board certified in Adult Psychiatry, and has subspecialty boards in Geriatric Psychiatry.

  • Keith Meador, M.D.

    Professor of Psychiatry & Health Policy

    Dr. Meador is Professor of Psychiatry and Health Policy at Vanderbilt University and also serves as the Director of Mental Health and Chaplaincy through the VISN 6 MIRECC as part of a national initiative to foster integration of chaplaincy services into mental health care within the Department of Veterans Affairs. He also serves as the Director of the Center for Biomedical Ethics and Society at Vanderbilt. He joined the faculty at Vanderbilt in July of 2010 and previously served as a Professor of Psychiatry and Behavioral Sciences at Duke University, where he continues to serve as an Adjunct Professor.

  • Paul Newhouse, M.D.

    Professor of Psychiatry

    Dr. Newhouse is the Director of the Center for Cognitive Medicine in the Department of Psychiatry at Vanderbilt University Medical Center.   His research has focused on central nicotinic mechanisms in degenerative brain disorders and the role of nicotinic receptor systems in normal and disordered cognitive functioning in humans. Another major focus includes studying the interaction of estrogen and central cholinergic, catecholaminergic, and serotonergic systems in relation to cognitive and emotional aging in the elderly and novel pharmacologic-imaging methodologies. Other interests include treatment of depression and behavioral disturbances in the elderly, and development of effective novel agents for the treatment of neuropsychiatric disorders of the elderly.

    He has served on and has chaired numerous NIH grant review committees, and is an editorial board member and frequent reviewer for scientific journals for manuscripts on depression, dementia, and cognitive neuroscience.

  • William Petrie, M.D.

    Professor of Clinical Psychiatry

    Dr. Petrie is Professor of Clinical Psychiatry, and directs the outpatient geriatric psychiatry clinic.  He has had clinical and research interests in drug treatment of Alzheimer's disease including investigational treatments.  His clinical interests and activity includes psychiatric aspects of Parkinson's disease, the use of clozapine in elderly patients, and impulse disorders in neurodegenerative illnesses, and psychopharmacologic interventions in the elderly. 

  • Meghan Riddle, M.D.

    Assistant Professor of Psychiatry

    Dr. Riddle joined the Vanderbilt faculty in 2016 after completing her adult psychiatry residency and geriatric psychiatry fellowship training at Vanderbilt. She served as chief resident during her fourth year of training. She received the Resident Recognition Award (American Psychiatric Association), the Departmental Research Award (Vanderbilt University) and completed the Honors Scholar Fellowship (American Association for Geriatric Psychiatry).   Dr. Riddle received her M.D. from University of Texas Health Science Center at San Antonio.

    Dr. Riddle’s clinical area of interests are Mood and Neurocognitive Disorders in the Elderly and her research interests are Alzheimer’s dementia, Mild Cognitive Impairment, Late-Life Depression. She is theTraining Director for the Geriatric Fellowship and an investigator in the Center for Cognitive Medicine.

  • Warren Taylor, M.D., M.S.

    Professor of Psychiatry and Director, Division of Geriatric Psychiatry

    Dr. Taylor is a Professor of Psychiatry, Investigator in the Center for Cognitive Medicine, and Director of the Division of Geriatric Psychiatry.  Dr. Taylor’s research focuses on biological factors contributing to the occurrence, phenomenology, and outcomes of depression in older adults, with a particular focus on pathological brain aging.  His work uses a variety of approaches including neuroimaging, neurocognitive, and genetic methods to advance our understanding of the pathogenesis of depression.  This work is often accompanied by clinical trials designed to probe the biological substrates of the antidepressant response.  This work has elucidated structural and functional neuroimaging findings are related to depression and treatment outcomes, particularly the influence of vascular disease on depression.

  • Sepideh Shokouhi, PhD

    Research Assistant Professor
    Psychiatry

    Dr. Shokouhi is a recognized authority in nuclear medicine imaging. Her current research includes development of novel multi-modal (PET and MRI) biomarker concepts and pharmacologic-imaging methodologies in degenerative brain disorders and treatment evaluation with special emphasis on Alzheimer’s disease (AD). She is a co-investigator (PI: Newhouse) on a phase IIa clinical trial that investigates the effects of highly selective M1-positive allosteric modulators (PAM) on Network Connectivity. Dr. Shokouhi has pioneered innovative data analysis concepts for characterizing early functional and pathological changes in individuals who have self-reported cognitive complaints but don’t show clinical symptoms of dementia or mild cognitive impairment (MCI). The long term goal of her research is to understand the biological basis of subjective cognitive decline which is increasingly recognized as the first self-perceived sign of preclinical AD and a precursor to MCI. Other active areas of research include characterization of sleep/wake architecture and autonomic activity measurement with advanced research-grade wearable devices to explore associations between sleep/wake disruption and tau and amyloid pathologies in normal aging and MCI.  The clinical implications of her findings include validating patient-specific patterns of sleep/wake activity as an early, non-invasive, and affordable biomarker to characterize an individual’s latent pathological profile.  This information will, in turn, help identify treatment and prevention strategies that are most likely effective by accounting for the characteristics of each patient.

     

TVHS-VA

  • Shagufta Jabeen, M.D.

    Dr. Jabeen is Associate Professor of Clinical Psychiatry and Staff Psychiatrist at VA hospital. She servers as Site Director for Geriatric Psychiatry Fellowship Program. Her clinical and research interests are geared towards diagnosis and management of mild and major neurocognitive disorders with special interest in effects of mental and medical comorbidities on cognition. She is interested in behavioral, psychological, nutritional and psychopharmacological interventions in geriatric population.

  • Harry Gwirtsman, M.D.

    Associate Professor of Psychiatry

    Dr. Gwirtsman has been a member of the faculty since 1995. He was Director of the Division of Geriatric Psychiatry at the Vanderbilt School of Medicine from 1998 until 2006. He currently serves as the Director of Inpatient Services and the Psychiatry-Medical Unit (PMU), as well as the Consultation-Liaison Service, and is also Director of the Geriatric Psychiatry Program at the Nashville VA-Tennessee Valley Healthcare System. He is board certified in Adult Psychiatry, and has subspecialty boards in Geriatric Psychiatry.