UPDATE: Foust has been found. (KRON) -- The San Ramon Police Department is searching for a missing woman. Haidee Foust, 75, walked away from a medical office on the 5600 block of Norris Canyon Road on Thursday and has not been seen since. Foust is 5-foot-6 and 150 pounds with brown hair. She was last seen wearing a white hat, gray shirt, gray pants and lime-green shoes. Foust has dementia, her family told police. Anyone who sees her is asked to call SRPD at (925) 973-2779.