Featured Instructors

Amanda Opaskar, MD

Vascular Neurologist

Amanda Opaskar, MD is a Vascular Neurologist at University Hospitals St. John Medical Center in Westlake, OH, where she serves as Director of the Primary Stroke Center. As a Cleveland native, her mission is to deliver high-quality stroke and neurological care to Cleveland's Westside. She is also a Clinical Assistant Professor at Case Western Reserve University School of Medicine, where she shares her passion for Neurology by developing and teaching the Neurology curriculum in the Graduate Medical Education. She also serves as a faculty member of the Stroke Fellowship Program at UH Cleveland Medical Center, providing clinical education to future vascular neurologists. Dr. Opaskar earned her B.S. in Chemical Engineering, summa cum laude, and her M.D. from the University of Michigan, graduating with Distinction in Education and completing the Path of Excellence in Global Health and Health Disparities. She completed her Neurology Residency at the University of Rochester, where she was Chief Resident, and later returned to Cleveland for her Fellowship in Vascular Neurology at UH Cleveland Medical Center

Regina Yaskey, MD

Pediatric EMS Medical Director

Regina Yaskey, MD, FAAP, is a pediatric emergency physician who is board-certified in both pediatrics and pediatric emergency medicine. She earned her medical degree from the University of Toledo College of Medicine after completing her undergraduate studies at Agnes Scott College and post-baccalaureate training at Southern Illinois University. She went on to complete her pediatric residency at the University of Maryland Medical Center, fellowship training in pediatric emergency medicine at University Hospitals Rainbow Babies and Children’s Hospital, and an additional fellowship in Emergency Medical Services at University Hospitals Cleveland Medical Center. She now practices pediatric emergency medicine at UH Rainbow Babies and Children’s Hospital, where she also serves as Pediatric EMS Medical Director. Her academic and research interests focus on pediatric disaster preparedness, EMS education, and improving systems of care for children in emergencies.

Joseph Posluszny, MD

Trauma and Surgical Critical Care Physician

Joseph Posluszny, MD is a board-certified surgeon in both General Surgery and Surgical Critical Care, with specialized training in trauma and the care of critically ill surgical patients. He earned his medical degree from the University of North Carolina and completed his General Surgery residency at University Hospitals Case Medical Center. During residency, Dr. Posluszny pursued a dedicated research fellowship in Trauma Surgery at Loyola University Medical Center, further advancing his expertise in injury care and systems improvement. He then completed a fellowship in Surgical Critical Care at the University of Michigan Health System. With a strong foundation in both academic and clinical leadership, Dr. Posluszny brings extensive experience in managing high-acuity surgical and trauma patients.