Dr. Alexandra O'Neill Duffy, DO, specializes in movement disorders at UC Davis Health and directs the Huntington’s Disease Center of Excellence. She serves as Vice Chair of Education, Director of the Adult Neurology Residency Program, and Associate Professor in the Department of Neurology. Dr. Duffy earned her BS in Biology from UC Davis in 2003 and her D.O. from Touro University College of Osteopathic Medicine in 2010. She completed her residency and fellowship at UC Davis Health, focusing on movement disorders. Her clinical interests include Parkinson's disease, tremors, dystonia, and Huntington's disease, with expertise in Deep Brain Stimulation and Botulinum Toxin Injections. Dr. Duffy's research centers on clinical trials for Huntington's disease, and she is dedicated to mentoring future neurologists.