Quest DiagnosticsWrite a Review626-974-4239Be the first to review!227 W Badillo St, Covina, CA 91723Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoHoursDo you know the hours for this business?Payment methodmaster card, visaNeighborhoodCovinaOther Linkhttp://www.questdiagnostics.comCategoryMedical Labs Suggest an Edit