This presentation traces the history of the German medical system under Hitler from the rise of Nazism to the end of World War II.  Different aspects of the Nazi medical structure is covered including the implementation of their sterilization program, euthanasia program, shift in medical education, and concentration camp experiments. The role of Mengele is discussed as well as the relevance of Nazi medicine and experiments to our contemporary medical ethics. This lecture was based on the book "Nazi Medicine" by Robert Lifton, complemented by other references and enlightened by personal visits to the Dachau and Auschwitz concentration camps.