• Since 2004: Director of the Department of Urology at the University Hospital of Special Surgical Urology, Munich
• 1995: Managing Senior Physician, Department of Adult and Pediatric Urology, Hannover Medical School
• 1990: Senior Physician, Department of Adult and Pediatric Urology, Hannover Medical School
• 1989: Assistant physician at the Clinic for Urology and Pediatric Urology of the Hannover Medical School
• Ranked as “Top Mediziner” on FOCUS, specializing in urology
• 2020: Fellow of German National Academy of Sciences - Leopoldina
• 2018: Member the Scientific Council (Medical Committee)
• 2014/15: Chairman, International Consultation on Medical Treatment of Urological Malignancies
• 2010: Co-publisher 'Der Urologe
• 2007: Publisher of the weekly medicine page 'Stiefs Sprechstunde' in the Münchner Merkur and the affiliated daily newspapers
• 2006/12: Associate Editor of European Urology
• 2005/07: Chairman of the Publication Office of the European Association of Urology
Most Recent Publications:
• PSMA-positive nodal recurrence in prostate cancer : Salvage radiotherapy is superior to salvage lymph node dissection in retrospective analysis.
• Advanced molecular imaging in histologically verified metanephric adenoma.
• Health-related quality of life after open and robot-assisted radical prostatectomy in low- and intermediate-risk prostate cancer patients: a propensity score-matched analysis.
• Impact of Routine Laboratory Parameters in Patients Undergoing Radical Cystectomy for Urothelial Carcinoma of the Bladder: A Long-Term Follow-Up.
• Total Penectomy for Recurrent Chordoma of the Corpus Cavernosum.