Gesetz zur Wiederherstellung des Berufsbeamtentums
Following his graduation, Wartenberg worked for a series of German universities. In the early 1930s, he became head of the neurological clinic and professor in neurology and psychiatry at the University of Freiburg. As a Jewish person, Wartenberg was persecuted by the Nazi regime. He was removed from the position at the University of Freiburg's Clinical Department of Neurology due to the Nazi Law for the Restoration of the Professional Civil Service. Wartenberg left Nazi Germany as a refugee in 1935 or 1936.