Jeff Tangney is the co-founder of Doximity and has served as its Chief Executive Officer and a member of the board of directors since the company's inception in April 2010. He previously co-founded Epocrates, Inc., a mobile medical reference app company, in 1999 and held management positions there through 2010, most recently as president and chief operating officer. He holds a B.S. in Economics and Math from the University of Wisconsin-Madison and an M.B.A. from the Stanford Graduate School of Business.