John H. Marks MD, FACS, FASCRS

Dr. Marks directs a colorectal surgical research team and a fellowship in advanced rectal cancer management, one of only four in the United States. Dr. Marks is a graduate of Yale University and the Jefferson Medical College of the Thomas Jefferson University where he received residency training in general surgery and colorectal surgery. He completed a fellowship in advanced laparoscopic colorectal surgery at the University of Nice (FR) under famed Prof. Jean Mouliel. Dr. Marks is board certified in general surgery and in colorectal surgery.