Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Steven T. Heiderer, Practice Areas No known practice areas. is located in the city of West Allis, the state of Wisconsin. Attorney legal address Guardian Credit Union11220 W Oklahoma AveWest Allis, WI, 53227-3937. For more information, please call (414) 546-7450 Your comments* (not for publishing) * — Required information Steven T. Heiderer ← View details Guardian Credit Union11220 W Oklahoma AveWest Allis, WI, 53227-3937, West Allis, Wisconsin (414) 546-7450