Heinz-Josef Lenz, M.D., FACP, is the Associate Director for Adult Oncology and Co-Leader of the Gastrointestinal Cancers Program at the USC Norris. Dr. Lenz is Professor of Medicine and Preventive Medicine, Section Head of GI Oncology in the Division of Medical Oncology and Co-Director of the Colorectal Center at the Keck School of Medicine of the University of Southern California.

Dr. Lenz received his medical degree from Johannes-Gutenberg Universität in Mainz, Germany in 1985. He completed a residency in Hematology and Oncology at the University Hospital Tübingen in Germany, a clerkship in Oncology at George Washington University in Washington, DC, and a clerkship in Hematology at Beth Israel Hospital of Harvard Medical School in Boston, Massachusetts. He served subsequent fellowships in Biochemistry and Molecular Biology at the USC Norris.

An active researcher, Dr. Lenz focuses on topics including the regulation of gene expression involved in drug resistance, patients at high risk of developing colorectal cancer, and determination of carcinogenesis, methods of early detection, and better surveillance of these cancers. He is a member of several professional societies, including the American Association for Cancer Research, the American Gastroenterology Association, and the National Society of Genetic Counselors. He also serves on the National Advisory Board of a number of professional organizations. Dr. Lenz is the author of numerous peer-reviewed publications and invited papers, reviews, and editorials. He also serves as Co-Chair of the GI Committee and Correlative Science Committee for SWOG. He is a member of the NCI Task Force for Gastroesophageal Cancer, the NCI Steering Committee and the NCI Translational Science Committee. In addition to having an NCI-funded laboratory, he was a recipient of the ASCO Young Investigator Award, the ASCO Career Development Award, and the STOP Cancer Career Development Award. He has been listed in the Best Doctors' database (www.bestdoctors.com) since 2003.