Menninger Department of Psychiatry
Baylor College of Medicine
Houston, TX, US
Executive Director
Mental Health Care Line
Veterans Affairs Medical Center
Houston, TX


BA from Oberlin College
MD from Ohio State University College of Medicine
Residency at John Hopkins University School of Medicine
Postdoctoral Fellowship at Clinical Brain Disorders Branch National Institute of Mental Health
Postdoctoral Fellowship at Stanford University School of Medicine


Board Certified
American Board of Psychiatry and Neurology - Geriatric Psychiatry
Board Certified
United Council for Neurologic Subspecialties - Neurology and Neuropsychiatry

Professional Interests

  • Geriatric Psychiatry
  • Neuropsychiatric Aspects of Parkinson's Disease and Related Disorders
  • Movement Disorders
  • Mental Health Interventions in Non-Mental Health Settings

Professional Statement

A geriatric neuropsychiatrist, Dr. Marsh's clinical and research expertise focuses on the recognition and treatment of psychiatric disturbances in patients with Parkinson’s disease. Since 2009, she has been the Executive Director of the Mental Health Service at the Michael E. DeBakey Veterans Affairs Medical Center. Previously, she was director and principal investigator of the Clinical Research Program of the NIH-funded Morris K. Udall Parkinson’s Disease Research Center at Johns Hopkins University School of Medicine. In addition to her efforts to improve psychiatric treatments for individuals with Parkinson's disease, a focus of her administrative role is to facilitate the general integration of psychiatric and mental health care into medical care and to promote positive attitudes and beliefs about mental health care and psychiatric illnesses. Dr. Marsh also serves on the scientific or clinical advisory boards or steering committee for the Houston Area Parkinson’s Society, the Houston/Harris County Coalition for the Homeless Continuum of Care, the American Parkinson’s Disease Association, and the National Parkinson Foundation. She is an active member of the American Association of Geriatric Psychiatry, the Parkinson’s Study Group, and the Movement Disorders Society and has published widely on psychiatric disorders in PD and related conditions, including as co-editor of the book, Psychiatric Issues in Parkinson’s Disease: A Practical Guide.

Selected Publications


American Association of Geriatric Psychiatry
American Neuropsychiatric Association
Movement Disorders Society
Parkinson Study Group
American Psychiatric Association
American Academy of Neurology
Society of Biological Psychiatry