Neil Theise, MD is a diagnostic liver pathologist, adult stem cell researcher, and complexity theorist in New York City, where he is Professor of Pathology and of Medicine at the Icahn School of Medicine at Mount Sinai and attending physician at the Mount Sinai Beth Israel Medical Center. He received his BA in Oriental Studies (Judaica/Hebraica) and a BAS in Computer Science from University of Pennsylvania before earning his MD from Columbia University.