Rhinelander, WI Gastroenterologist. GastroIntestinal Associates, S.C. C/O Aspirus Rhinelander Clinic. 1630 North Chippewa Drive. Rhinelander, WI 54501. Phone: (715) 847-2558. The Aspirus Rhinelander Clinic is located at 1630 North Chippewa Drive. Upon arrival, please register at the main reception desk..