You reach us publicly by using either the metro to U1 Stephansplatz or the U3 to Stubentor, exactly opposite of Vienna's beautiful Stadtpark. By car you can find two parking lots, one in Cobdengasse and one in the Marriot Hotel.
You will find the entrance to the clinic at Liebenberggasse 7, entrance door is always open, Stiege II, 4th floor.