Dr. Mayo is an Oregon native, born in Eastern Oregon and raised in Central Oregon. During his surgical residency at Johns Hopkins his clinical and research work focused on the treatment of patients with pancreatic and liver cancers.  He completed a research fellowship in Cancer Immunology at the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins investigating the role of immune therapy in patients with metastatic liver disease. His surgical oncology fellowship at Memorial Sloan-Kettering Cancer Center in New York was focused in advanced Hepatopancreatobiliary Surgery where he was also certified to perform robotic cancer operations.

He is a member of a talented team of surgeons and oncologists at OHSU where he uses his experience and research to help advance the treatment of patients with cancers of the liver, bile ducts, and pancreas.  He is a member of the OHSU Knight Cancer Institute and of the Southwest Oncology Group, which offers patients the latest in cancer care through participation in clinical trials. His research at OHSU involves using hepatic arterial regional therapy for patients with liver and bile duct cancers and investigating how to harness the immune system to fight cancer. Specifically, his research efforts are directed toward the early detection of recurrent cancer and monitoring responses to treatment in patients with colorectal cancer metastatic to the liver.

Dr. Mayo views it as a privilege to work with patients, their families, and primary care doctors to develop the best treatment plans. He is dedicated to offering the highest quality of service. He looks forward to working with other cancer specialists to help give his patients the most options and the best possible outcome.

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