Riba has also served as president of the Association for Academic Psychiatry and the American Association of Directors of
Psychiatric Residency Training, and she is the Zone 2 representative to the World Psychiatric Association. She also holds
several leadership positions at the University of Michigan—associate chair for integrated medical and psychiatric services
in the Department of Psychiatry, director of the PsychOncology Program at the Comprehensive Cancer Center, and associate director
of the Comprehensive Depression Center and the Michigan Institute for Clinical and Health Research.