1096. Reducing Unnecessary Postoperative Antibiotic Prophylaxis. - Metjian, Talene A; Gerber, Jeffrey; Watson, Adam; Burlingame, Caroline; Gregory, Heuer; Rizzi, Mark; Rodman, Allison; Stow, Joanne N; Wertz, Aileen; Mattei, Peter (Open Forum Infectious Diseases, 2019)