Quest Diagnostics is located at 500 Alfred Nobel Drive, Hercules, CA. This location is in the North Shore Business Park neighborhood. This business specializes in Health & Medicine. Quest Diagnostics is open Mon, 7:30am-11:30am; Tue, 7:30am-11:30am; Wed, 7:30am-11:30am; Thu, 7:30am-11:30am; Fri, 7:30am-11:30am; Sat, Closed; Sun, Closed and accepts All Major Credit Cards, American Express,...