Sibylle Wolleb is a highly experienced medical professional currently serving as the Leitende Ärztin Onkologie at Spital Uster since January 2015, having previously held roles such as Stv. Leitende Ärztin Onkologie and Oberärztin Medizin/Onkologie. Prior experience includes positions as Assistenzärztin Onkologie at Inselspital Bern and Spital Thun, as well as an Assistenzärztin Innere Medizin at Inselspital Bern and an Internal Medicine Resident at Tufts Medical Center. Sibylle Wolleb started a medical career with a degree in Doctor of Medicine from the University of Zurich, completed in 2004.