After his training as Medical Doctor in 2002, Stephan obtained his PhD in Medical Physiology in 2007. From 2008 onward, Stephan decided to dedicate his career to oncology and started as a resident in pathology at University Medical Center Utrecht. In 2009, Stephan joined the pharmaceutical industry subsequently at Wyeth (now Pfizer), Boehringer Ingelheim and the CRO Julius Clinical in which he fulfilled roles as medical monitor, project manager, protocol author, safety physician, proposal writer and medical lead, focusing on phase I-III oncology studies.
Stephan started at SMS-oncology in February 2016 as Director Medical Affairs. In this position, he leads the Medical Affairs department, providing clients with expert medical oncology drug development advice and high quality medical review and pharmacovigilance services.
As of May 2019, Stephan joined the management team as Chief Medical Officer, and contributes to the delivery of meaningful medical and scientific advice and services to clients of SMS-oncology.