Andrew Hanna, MD, is a surgical oncologist who joined University Hospitals Seidman Cancer Center in 2025. His clinical interests include extremity and truncal soft tissue, retroperitoneal and Merkel cell sarcomas; gastrointestinal stromal tumors; melanoma; and gallbladder, stomach, small intestine, bile duct, liver and pancreatic cancer. In addition to contributing surgical oncology research to a number of peer-reviewed medical publications, Dr. Hanna is a regularly invited speaker and presenter at meetings hosted by various professional medical societies.