Internist, infectiologist, 1996-2001 QM University Clinic Cologne, 2002-05 Chairman of the Board of Directors University Clinic Marburg, then Dean/Scientific. GF Univ. Witten, general representative of the Frankfurt University Hospital. 2009 Ruf W3 Univ. Bonn, until 2011 Director of the Institute for Patient Safety Univ. Bonn. Member/Deputy until 2011 Chairman of the SVR Health, 2001-7 Chairman of the GQMG, 2005-9 founding chairman of APS, until 2019 APL Prof. University Cologne with teaching position “Patient Safety and Risk Management”.