Search the directory for faculty and staff. Charles T. Estill, VMD, PhD, DACT charles.estill@oregonstate.edu 541-737-2858 (LA Reception) Professor - Theriogenology Sarah Mullin, DVM mullins@oregonstate.edu Resident - Theriogenology Jennifer M. Pearson, DVM, DACT, PhD pearsjen@oregonstate.edu 541-737-4812 (Reception) Assistant Professor (Clinical) Betsy Snyder CVT Betsy.Snyder@oregonstate.edu 541-737-2858 (Reception) William Whitler, DVM, DACT, DABVP william.whitler@oregonstate.edu 541-737-2858 (Reception) Associate Professor - Theriogenology