Assistant Professor in the Department of General, Vascular and Thoracic Surgery at the Free University of Berlin, Steglitz Clinic (Franke, Häring)
Senior assistant in the department of surgery at the Franziskus Hospital Berlin
Surgeon and senior physician in the Department of Surgery at the Behring Hospital Berlin (Dohrmann, Konradt)
Chief physician of the surgical department at the hospital Ottweiler / Saar
Internship in leading proctologic practices and at St. Mark's Hospital in London
Special practice for proctology and Phlebology in association with Dr. J. Kiehl in Berlin-Wilmersdorf, Fasanenstr. 60
Joint practice ownership with Dr. Fedor Ernst
Additional designation proctology (created) of the Berlin Chamber of Physicians
