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Passion, Dedication, and Experience
The University of South Florida boasts an exemplary geriatric psychiatric faculty, each of whom brings unique interests, clinical and research experiences, and mentorship opportunities. Combined, these faculty represent the cornerstone of the excellence in education that USF is proud of.
Greg Sullivan
MD, fapa
Greg Sullivan
MD, fapa
PROGRAM DIRECTOR
ASSOCIATE PROFESSOR
Geriatric Consultation-Liaison Psychiatrist Community Living Center
Director, Electroconvulsive Therapy
James A. Haley VA Hospital
General Psychiatry
Geriatric Psychiatry
Behavioral Neurology & Neuropsychiatry
Dr. Sullivan is a graduate of the University of Arkansas for Medical Sciences and completed both general residency and geriatric psychiatry fellowship at the University of South Florida. He serves as Director of Geriatric Psychiatry Consultation-Liaison services and Director of the Electroconvulsive Therapy program at the James A. Haley VA Hospital (JAHVA). In addition to serving as program director for the Geriatric Psychiatry fellowship, Dr. Sullivan maintains faculty positions in the general, addiction, and forensic psychiatry programs. He serves as Chair of the Graduate Medical Education Wellness Committee, which guides and oversees the University of South Florida's growing commitment to trainee health and wellness, in addition to serving as the President of the Florida Geriatrics Psychiatry, a non-profit professional organization dedicated to improving the lives of older adults through education, research, and interprofessional networking. Dr. Sullivan's scholarly interests include assessment of complex medical decision-making in acute and critical care, delirium, care of aging LGBT patients, and interventional psychiatry.
amanda g. smith, md
amanda g. smith, md
PROFESSOR
Director of Clinical Research
USF Health Byrd Alzheimer's Center and Research Institute
General Psychiatry
Geriatric Psychiatry
Dr. Smith is a graduate of the Sidney Kimmel Medical College of Thomas Jefferson University and completed both general and geriatric psychiatry training at the University of South Florida. She serves as the Director of Clinical Research for the USF Health Byrd Alzheimer's Institute.
Dr. Smith was instrumental in the development and implementation of the nation's first Mobile Clinical Trial unit for Alzheimer's research and she maintains a broad research base. She actively oversees numerous ongoing clinical trials through the Byrd Institute.
matthew warren
md, phd
matthew warren
md, phd
ASSOCIATE PROFESSOR
Program Lead, Geriatric Psychiatry
James A. Haley VA Hospital
General Psychiatry
Geriatric Psychiatry
Dr. Warren received his medical degree and PhD in Neuroscience from the University of Florida. He went on to complete general psychiatric residency at UT Southwestern and geriatric psychiatry fellowship at Duke University. He serves as Program Leader of geriatric psychiatry at JAHVA and has served as chair of the JAHVA Dementia Committee and Co-Chair of the VISN 8 Dementia Committee.
peggy chatham, md
peggy chatham, md
Inpatient Geriatric Psychiatrist
Acute Recovery Center
General Psychiatry
Geriatric Psychiatry
Dr. Chatham supervises medical students, residents, and geriatric psychiatry fellows on Inpatient Geriatric Psychiatry at the Acute Recovery Center at JAHVA.
Ram Bishnoi, MBBS, MBA
Ram Bishnoi, MBBS, MBA
ASSOCIATE PROFESSOR
Medical Director
USF Health Memory Disorders Clinic
General Psychiatry
Geriatric Psychiatry
Dr. Bishnoi serves as Medical Director of the USF Health Memory Disorder Clinic. He brings a wealth of diverse experience to supervision and training of residents and fellows.
Dr. Bishnoi received his MBBS from NHL Municipal Medical College, MBA from August University, and then completed General Psychiatry residency at UT Health Science and Geriatric Psychiatry fellowship at Saint Louis University.
regina velasco, do
regina velasco, do
Outpatient Geriatric Psychiatrist
James. A. Haley VA Hospital
General Psychiatry
Geriatric Psychiatry
Dr. Velasco received her medical degree from the University of Osteopathic Medicine and Health Sciences Des Moines and went on to complete general psychiatry residency and geriatric psychiatry fellowship at the University of South Florida, in addition to a Research Fellowship in Geriatric Psychiatry at USF Suncoast Gerontology Center. Her current clinical work includes outpatient geriatric psychiatry services at JAHVA, where she provides clinical training to medical students, psychiatry residents, and geriatric psychiatry fellows.
p. khy gootam, md
p. khy gootam, md
Staff Psychiatrist
JAHVA Polytrauma Rehabilitation Center
General Psychiatry
Brain Injury Medicine
Sleep Medicine
Dr. Gootam provides inpatient and outpatient services as part of the polytrauma rehabilitation center at JAHVA and maintains specialty expertise in traumatic brain injury and sleep medicine.
jonathan t. stewart
md, DLFAPA, AGSF
jonathan t. stewart
md, DLFAPA, AGSF
PROFESSOR
General Psychiatry
Geriatric Psychiatry
Hospice and Palliative Medicine
Dr. Stewart is a graduate of the University of South Florida and later attended the University of Florida for general psychiatric residency. He is a Distinguished Life Fellow of the American Psychiatric Association and a Fellow of the American Geriatrics Society. His most recent clinical experience included serving as a consulting geropsychiatrist for the JAHVA nursing care units and serving as director of the ECT program. While he has since clinically retired, he maintains an active educational role in the training of both residents and fellows.
Dr. Stewart is a recognized leader in the field of geriatric psychiatry, having maintained numerous leadership roles in professional organizations, in addition to publishing nearly 150 journal articles and book chapters, and giving over 300 local, state, and national presentations.
Nupur Kroger, MD
Nupur Kroger, MD
Staff Psychiatrist
James A. Haley VA Hospital
General Psychiatry
Geriatric Psychiatry
Dr. Kroger is a graduate of the University of South Florida Morsani College of Medicine, where she went on to complete both general psychiatry and geriatric psychiatry fellowships.
Dr. Kroger provides outpatient geriatric psychiatry services and conducts initial evaluations for Transcranial Magnetic Stimulation and Electroconvulsive therapy services at JAHVA. She prioritizes principles of whole health and integrative medicine in every domain of her clinical practice, and brings particular expertise in interventional psychiatry to the clinical services she provides.
elizabeth vidal, md
elizabeth vidal, md
ASSISTANT PROFESSOR
General Psychiatry
Geriatric Psychiatry
Dr. Vidal is a graduate of the University of Miami Miller School of Medicine and she completed both general and geriatric psychiatry fellowships at the University of South Florida. She is a Distinguished Fellow of the American Psychiatric Association and serves on a number of leadership committees for both local and state professional organizations.
Margarita Bobonis Babilonia, MD
Margarita Bobonis Babilonia, MD
ASSISTANT PROFESSOR
Staff Psychiatrist
Home-Based Primary Care
James A. Haley VA Hospital
General Psychiatry
Psychosomatic Medicine
Dr. Bobonis Babilonia is a graduate of New York Medical College and completed General Psychiatry residency and Consultation-Liaison Psychiatry fellowship at Westchester Medical Center. She received extensive clinical experience in psychosomatic medicine and geriatrics during her time at Moffitt Cancer Center, where she served as both Section Chief for Behavioral Medicine Services and Vice-Chair of the Supportive Care Department. She currently provides home-based geriatric psychiatric care services through the James A. Haley VA Hospital.
jaffrey hashimie, md
jaffrey hashimie, md
General Psychiatry
Geriatric Psychiatry
Dr. Hashimie provides outpatient geriatric psychiatry services and conducts initial evaluations for Transcranial Magnetic Stimulation therapy at JAHVA.
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