Joining Vascular Health Partners is a homecoming of sorts for Dr. Kostun. He is originally from Troy, NY and is coming back home after completing a five year residency in Washington, DC. at Washington Hospital Center and Georgetown University Hospital. Dr. Kostun earned his degree as a Doctor of Medicine from the University at Buffalo, School of Medicine and Biomedical Sciences where he graduated Cum Laude. In 2006, he earned his Bachelor's degree in Biochemical Sciences from Harvard University. As a student at Harvard University, he was the Harvard Stem Cell Institute Internship recipient in 2005.