 From 2011 until 2012 he led the visceral surgical science LMU as well as the section of visceral surgery at the LMU-Munich as executive senior physician.In 2012 he awarded the title of endovascular surgeon (DGG) and was entrusted with the management of the new established section of visceral surgery at the university hospital Essen.Since 2014 Hoffmann has been head of the clinic for vascular surgery and phlebology in Essen.