Prof. Dr. Oğuzhan Deyneli was born in 1969 in İstanbul. He graduated from Marmara University School of Medicine in 1993. He completed his residency in Internal Medicine in 1998 and fellowship in Endocrinology and Disorders of Metabolism in 2001 in Marmara University School of Medicine. He received his Associate Professor degree in Internal Medicine in 2008 and Professor degree in 2015. He worked as a member of academic team in Marmara University Medical School between 2001-2017. He started working in Koç University Hospital Since 2017.