Christopher R. Marsh, MD, is a medical oncologist and hematologist specializing in the treatment of GI malignancies, including colorectal, pancreatic, and liver cancers. Board-certified in internal medicine, hematology, and medical oncology, Dr. Marsh received his medical degree from the University of Cincinnati College Of Medicine in Ohio. He completed his internal medicine residency, and a hematology/medical oncology fellowship at UPMC.