Jeffrey Bennett, MD

Clinical Psychiatrist
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    About me

    Dr. Jeffrey I. Bennett joined the faculty at Southern Illinois University School of Medicine as an Assistant Professor of Psychiatry and Director of the Department of Psychiatry Residency Program in 2003.  He has since held several posts (Director, Division of Developmental Disabilities; Psychiatry Clerkship Director, and Director, Division of Adult Services).  In 2014, he became the Donnelly Family Endowed Professor in Developmental Disabilities and subsequently an SIU SOM Academy Scholar 2015.

    Dr. Bennett completed medical school at New York University School of Medicine (1986) followed by a one-year Research Fellowship in Neurology at the University of Maryland Medical Center in Baltimore (1987). He completed his Psychiatry Residency at the University of Chicago (1991) after a medical internship at Michael Reese Hospital.  He subsequently finished a one year Fellowship in Neuropsychiatry (1992), becoming faculty at the University of Chicago (1993-2003).  He earned his bachelor's degree at Harvard University in Cambridge, Massachusetts (1978) followed by a year as a Research Associate in the Neurobiology Division at the University of California, San Francisco with Michael Dennis, Steve Hauser, and Leah Ziskind-Conhaim.

    While an Instructor at the University of Chicago, he also served as a Neuropsychiatric Consultant for Tinley Park Mental Health Center and Midwest Neurological Rehabilitation Center in Waterford, Wisconsin (1992-93). He also consulted for W.A. Howe Development Center in Tinley Park, Illinois (1992-94).  He served as Medical Director at Jacksonville Developmental Center (2011-2012).

    He is board certified in psychiatry. He currently serves as Immediate Past President for the Illinois Psychiatric Society.  He is a delegate to the Illinois State Medical Society, an Area 4 Representative to the American Psychiatric Association Assembly, and a member of the American Psychiatric Association Telepsychiatry and Membership Committees.  He is a member of American Neuropsychiatric Association, American Medical Association, and Association for Academic Psychiatry.


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    Education & training

    Associate Professor of Clinical Psychiatry
    Department of Psychiatry Chair - St. John's Hospital
    Board Certifications
    Medical School
    New York University School of Medicine, New York, NY
    University of Chicago Hospitals, Chicago, IL - Psychiatry
    University of Chicago Hospitals, Chicago, IL - Neuropsychiatry
    University of Maryland Medical Center - Neurology Research


    Clinical locations


    SIU Psychiatry

    319 E Madison St Springfield, IL 62702 3rd Floor
    Mon - Fri: 8:00 am-4:30 pm

    Hospital privileges

    • HSHS St. John's Hospital, Springfield, IL
    • Memorial Health, Springfield IL


    Research Interests
    Neuropsychiatric disorders such as intellectual disabilities and neurodevelopmental disorders, dementia, delirium, epilepsy accompanied by psychiatric or behavioral syndromes, behavioral and psychological effects from traumatic brain injury.

    Clinical trials


    A Multicenter, Double-Blind, Randomized, Parallel-Group, Placebo-Controlled, Study to Evaluate the Efficacy and Safety of Seltorexant 20 mg as Adjunctive Therapy to Antidepressants in Adult and Elderly Patients with Major Depressive Disorder with Insomnia

    Active recruiting

    The purpose of this study is to see if seltorexant (JNJ-42847922) as an add-on treatment to current antidepressant is effective for treating patients with major depressive disorder (MDD) with and without sleep problems (such as difficulty falling asleep, staying asleep or poor sleep).


    RECOVER: A Prospective, Multi-center, Randomized Controlled Blinded Trial Demonstrating the Safety and Effectiveness of VNS Therapy System as Adjunctive Therapy Versus a No-Stimulation Control in Subjects with Treatment-Resistant Depression

    Active recruiting

    The RECOVER study is a nationwide clinical trial that has been approved by Medicare to provide additional evidence for the benefits of Vagus Nerve Stimulation (VNS) Therapy.  Vagus Nerve Stimulation Therapy is an FDA-approved device for treating patients with TRD (Treatment Resistant Depression). It is implanted in the left chest area during a short outpatient procedure. The device delivers mild, intermittently pulsed signals to the vagus nerve in the neck that activate various parts of the brain.