The Rockefeller University is a private university offering postgraduate and postdoctoral education. The Rockefeller University is located on the Upper East Side of Manhattan in New York City, between 63rd and 68th Streets along York Avenue. Marc Tessier-Lavigne—previously executive vice president of research and chief scientific officer at Genentech—is the university's tenth president. The Rockefeller University Press publishes the Journal of Experimental Medicine, the Journal of Cell Biology, and The Journal of General Physiology. What is now The Rockefeller University was founded in 1901 as The Rockefeller Institute for Medical Research—often called simply The Rockefeller Institute—by John D. Rockefeller, who had earlier founded the University of Chicago in 1889. (The Rockefeller Foundation is a separate entity.) Its first director was Simon Flexner, former student of the Institute's first scientific director, William H. Welch, known as the father of American medicine.