Apostolos K. Tassiopoulos, MD, FACS is a Professor of Surgery at Stony Brook University and currently serves as the Chairman of the Department of Surgery and the Chief of the Vascular and Endovascular Surgery Division. Dr Tassiopoulos graduated from Aristotle University Medical School in Thessaloniki, Greece, and trained in General Surgery at SUNY Upstate Medical University and in Vascular Surgery (Fellowship) at Loyola University Medical Center in Chicago, Illinois. After starting as faculty in Surgery at Rush-Presbyterian-St. Luke’s Medical Center in Chicago, Dr Tassiopoulos joined the Surgery department at Stony Brook in 2006, becoming Chief of the Division of Vascular and Endovascular Surgery in 2008. In addition to growing the scope, services, and footprint of the Vascular Surgery Division in the intervening 14 years, Dr. Tassiopoulos also served as Program Director of both the Vascular Surgery Fellowship and Integrated Residency at Stony Brook University Hospital. Since April 2021 he has served as the Chairman in the Department of Surgery. A practicing academic vascular surgeon, he has served as the Medical Director for the Greater New York Vascular Study Group for over a decade. He managed the SBUH NSQIP (National Surgical Quality Improvement Program) efforts and advanced the science of vascular surgery with understanding of artificial intelligence applications in vascular surgery, aortic endograft failures, aortic neck dilatation, vascular graft patency, coagulation, wound healing, and most recently of thrombosis complications linked to COVID-19 infection. A career long educator, Dr Tassiopoulos completed a fellowship in medical education at Stony Brook and developed the Surgical Skills Simulation Center at Stony Brook in 2009. He has trained many medical students, residents and fellows in Vascular and Endovascular Surgery. He served as the President of the New York Society for Vascular Surgery between 2018 and 2019 and is still a member of the executive committee of that organization. He has been a member of the Executive Council of the Eastern Vascular Society for the past 5 years.