Tim F. Greten, M.D., received his medical training at Christian Albrechts University in Kiel, Germany in 1993. He did his internship in Munich followed by a 3-year postdoctoral fellowship at the Johns Hopkins University (Baltimore, Maryland), where he initiated his work in the field of tumor immunology. In 1999 Dr. Greten returned to Hannover Medical School, where he finished his training in Internal Medicine (2003), Medical Oncology (2004) and Gastroenterology (2007). He held an Associate Professor position in the Department of Gastroenterology, Hepatology and Endocrinology. In February 2010 Dr. Greten joined CCR's Medical Oncology Branch as head of the Gastrointestinal Malignancy Section and was promoted as a tenured Senior Investigator in 2015 and Deputy Branch Chief in 2018.
Dr. Greten has published more than 150 peer-reviewed papers on basic tumor immunology, translational research studies in hepatocellular carcinoma (HCC) as well as on clinical trials in different gastrointestinal malignancies, including HCC. Currently, Dr. Greten serves on the Center of Excellence in Immunology Steering Committee and Center for Advanced Preclinical Research oversight committee and is Co-Director of the NCI-CCR-Liver Cancer Program.