 He has served on the UNMC faculty since 1983 when he joined the Pathology and Microbiology department.In 1986 he was named associate professor and in 1989 was named professor.He has held numerous administrative positions at UNMC, including vice chairman of Pathology and Microbiology, director of Surgical Pathology, director of Cytopathology, associate dean for Academic Affairs and interim dean of Medicine.