3630 Willowcreek Rd. Portage, IN 46368. (219) 364-3000. About Us. Directions. Northwest Health - Valparaiso. Northwest Health - Valparaiso - a location of Porter Regional Hospital - offers outpatient diagnostic and laboratory services, as well as a 24/7 Emergency Department in the heart of Valpo, at the corner of Roosevelt and Glendale ....