Dr. Katharine Sourbeer is an Assistant Professor in the Department of Neurology’s Movement Disorders Division at Vanderbilt University Medical Center. She manages patients facing a wide variety of movement disorders including Parkinson’s disease, Huntington’s disease, Dystonia, Essential tremor, and Tourette Syndrome. She holds certification in Neurology from the American Board of Psychiatry and Neurology and is a member of the Movement Disorders Society and the American Academy of Neurology. 

Dr. Sourbeer completed a fellowship in Movement Disorders at VUMC. She also completed Neurology residency at VUMC, during which time she participated in the Distinction in Biomedical Ethics Program and Distinction in Leadership Training. She served as chief resident her final year and earned the department’s James True Martin Award and Medical Student Teaching Award. She earned her M.D. from the Virginia Tech Carilion (VTC) School of Medicine in Roanoke, VA, as well as a Graduate Certificate in Research in Translational Medicine from Virginia Polytechnic Institute in Blacksburg, VA. She earned her B.S. from Duke University in Durham, NC.

Dr. Stephen Layfield is an Assistant Professor in the Department of Neurology’s Neuromuscular Division at Vanderbilt University Medical Center. He is certified in Neurology by the American Board of Psychiatry and Neurology. Dr. Layfield is a member of the American Academy of Neurology and the American Association of Neuromuscular & Electrodiagnostic Medicine.

Dr. Layfield completed a Clinical Neurophysiology Fellowship at the Mount Sinai Hospital in New York City. He completed neurology residency training at the University Hospitals at Cleveland Medical Center. He earned his B.S. as well as his Doctor of Medicine from the University of Alabama at Birmingham.

In his free time, he enjoys board games, hiking, and cooking.

Dr. Olivia Gruder is an Assistant Professor of Neurology at Vanderbilt University Medical Center. She specializes in Neuroimmunology and General Neurology. Dr. Gruder earned her both her BS in biological science as well as her MD from The Florida State University. She then completed her internal medicine internship and neurology residency at Thomas Jefferson University Hospital in Philadelphia, PA. After residency, she completed a clinical fellowship in Neurology – Neuroimmunology / Multiple Sclerosis at Yale New Haven Health. Currently, she provides care at various locations at Vanderbilt, including The Vanderbilt Clinic, Vanderbilt Neurology Lebanon and Green Hills Multiple Sclerosis Center. In addition to performing inpatient consults with medical students and residents at VUMC, she also provides inpatient care via telemedicine to multiple regions within Tennessee and Kentucky.

Dr. Graham Mitro is an Assistant Professor in the Department of Neurology’s General Neurology Inpatient division at Vanderbilt University Medical Center. He manages patients on the inpatient neurology and consult services.

Dr. Mitro completed his Neurology residency at VUMC, earning the department’s Ronald G. Wiley Award and James True Martin Award. He earned his M.D. from the University of Toledo College of Medicine. Prior to medical school, he earned his B.A. in Ancient Greek and Latin from Kenyon College, and subsequently completed postgraduate coursework in biology at the University of Cincinnati.

Dr. Jillian Berkman is an Assistant Professor in the Department of Neurology’s Stroke Division at Vanderbilt University Medical Center. She practices both inpatient and outpatient stroke neurology. She is a member of the American Academy of Neurology, the American Neurology Association, and the Gold Humanism Honor Society.

Dr. Berkman completed her neurology residency at Mass General Brigham in Boston, MA, serving as chief resident her senior year. During residency, she worked to create and implement a standardized neurology resident curriculum. She also developed a monthly lecture series for residents. She earned her M.D. from Vanderbilt University School of Medicine, and her B.A. in neuroscience and French from Bowdoin College in Brunswick, ME.

Dr. Kyle Dack is an Assistant Professor of Neurology in the Neurology Department’s Stroke Division at Vanderbilt University Medical Center. He manages patients on the inpatient stroke and consult services as well as the outpatient stroke clinic.

Dr. Dack completed his fellowship in Vascular Neurology at VUMC, and his residency in neurology at the University of Kansas School of Medicine in Kansas City, KS. He served as chief resident his senior year and earned several university-wide resident awards. Dr. Dack earned his M.D. from University of Kansas and his B.A. in Molecular, Cellular, Developmental Biology from University of Colorado at Boulder.

Dr. Nikhil Banerjee is an Assistant Professor of Clinical Neurology in the Behavioral and Cognitive Neurology division of VUMC’s Department of Neurology. He works as a clinical neuropsychologist, conducting neurocognitive evaluations with a wide variety of adult patient populations. Clinical interests include neurodegenerative conditions, movement disorders, and cerebrovascular disease, among others. Additionally, he co-directs the VUMC Brain Health Clinic service, integrating neuropsychological assessment with health psychology to 1) identify medical/lifestyle factors potentially impacting cognition, and 2) to promote healthy brain aging.

He has authored multiple publications in peer-reviewed journals such as Journal of Alzheimer’s Disease, Geriatric Psychiatry and Neurology, Aging, Neuropsychology, and Cognition, Aids and Behavior. Research highlights include studying cognitive profiles in Mild Cognitive Impairment; the intersection of frailty symptoms, neuroimaging markers, and cognitive functioning in older adults; cognitive dysfunction in HIV; and outcomes in DBS surgery for Parkinson’s disease. He served as a rater in clinical trials for patients with early Alzheimer’s disease, and he is a member of the National Academy of Neuropsychology.

Dr. Banerjee earned his Ph.D. in Clinical Psychology from the University of Miami, which included a clinical internship at the Denver/Rocky Mountain Regional VA Medical Center in his home state of Colorado. He completed a postdoctoral fellowship in clinical neuropsychology at the University of Miami Miller School of Medicine, Department of Neurology. He earned his B.S. and M.S. degrees from the University of Miami, graduating magna cum laude.