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John Walker has been a serial entrepreneur over his forty-five years in the Healthcare Industry. He started his career at American Hospital Supply Corporation (AHSC) where he eventually was named president of the Hospital Company, the largest operating unit of AHSC. After leaving American he became involved in translating new technologies from the bench to the bedside and has been associated with over three dozen companies in the Biotech and Medical Device sectors many of which he served as Chairman or CEO. These included Arris Pharmaceuticals, Vitaphore Corporation, Signal Pharmaceuticals, Guava Technologies, Centaur Pharmaceuticals, Novacea, Renovis, iPierian, Bayhill Therapeutics, Zosano, Neuraltus, Novacea, Kai Pharmaceuticals and others.

He is currently Chairman of Zosano and serves on the Board of Trustees of the University of Puget Sound, the Board of Directors of Lucile Packard Childrens Hospital at Stanford University and is Chairman of the Packard Childrens Health Alliance.

Mr. Walker is a graduate of the State University of New York at Buffalo, where he was recently named a recipient of The Distinguished Alumni Award and is a graduate of the Advanced Executive Program at the Kellogg School of Management at Northwestern University.