Dr. Bretthauer has two decades of experience in leadership, clinical work, research, and medical publications, with a focus on internal medicine and colorectal cancer.
After completing an internship at Telemark Hospital in Skien, Norway, Dr. Bretthauer worked as a physician on the Norwegian Colorectal Cancer Prevention Trial (NORCCAP) from 1998 to 2001. In 2000 and 2001, he also acted as the head for the NORCCAP endoscopy center. After completing residencies at Telemark Hospital and Oslo University Hospital, Dr. Bretthauer has continued to work as a gastroenterologist and endoscopist specialist at Oslo University Hospital.
In addition to clinical work, Dr. Bretthauer completed his Ph.D. fellowship at the University of Oslo in 2003. Since then, he has been a visiting scientist and researcher at the Harvard School of Public Heath, the principal investigator of the Nordic Initiative on Colorectal Cancer (NordICC), the head of the Colorectal Cancer Screening Group of South-East Norway, and the head of the Network for Clinical Effectiveness in Gastroenterology of South-East Norway. Dr. Bretthauer is currently a tenured Professor of Medicine at the University of Oslo.
Dr. Bretthauer is credited with over 170 publications and has a strong interest in promoting quality scientific information dissemination. In addition to teaching and supervision for the next generation of medical researchers at the University of Oslo, Dr. Bretthauer holds several editorial positions with prominent medical publications, including the Annals of Internal Medicine and the New England Journal of Medicine.