Dishman is executive director of The David Geffen Foundation, where he oversees philanthropic activities in the areas of HIV/AIDS, civil liberties, cultural arts, Jewish community services and healthcare. He also serves on the West Hollywood Arts and Cultural Affairs Commission and is the recipient of numerous community service and academic awards. He received a bachelor’s degree from Indiana University Indianapolis, and master’s and doctoral degrees from The University of Southern California. His graduate work explored the emergence of digital communities on the internet and their expanding notions of “community” and anti-gay violence, which employed a mixed methodology to model both quantitative and qualitative aspects of crimes across space and time. Dishman is a faculty member of the Organizational Leadership Program in the School of Business at Woodbury University.