Mark Löwenberg is a gastroenterologist trained at the Academic Medical Center (AMC) in Amsterdam, The Netherlands. He is specialized in inflammatory bowel diseases. In 2000 Löwenberg obtained scientific experience at a biotechnology company in the Netherlands (Crucell, nowadays part of Johnson & Johnson). In that same year he performed a research internship at Harvard Medical School (Dana Farber Cancer Institute, Boston, USA). After finishing medical school, he started in 2003 his PhD at the AMC. His research dealt with defining the interactions between cellular signaling pathways in immune cells and therapeutic interventions in inflammatory bowel diseases. He received his PhD degree in 2006. Löwenberg started his training at the AMC in 2006 and completed his fellowship in gastroenterology in March 2012. During his fellowship he spent a three-month period at the Gasthuisberg in Leuven, Belgium. As a clinician Löwenberg is involved in patient care, clinical trials and translational research.