Dr. Roll attended Boston College as an undergraduate and later received his medical degree from Temple University School of Medicine. For his clinical training, he went to UCSF, where he completed his general surgery residency and is now training as a clinical transplant fellow. During his residency, Dr. Roll served as chief resident and did substantial research in liver cell therapy and regeneration under the mentorship of Dr. Holger Willenbring. He will complete his transplant fellowship at UCSF in June of 2014.