Joanna R. Swauger, D.O. Monongahela Valley Hospital HealthPlex 800 Plaza Drive, Suite 290 Rostraver Township, PA 15012 724-379-6850 (phone) 678-553-0330 (fax) Joanna R. Swauger, D.O., is a well-respected family practitioner who provides medical care to people who live in the Rostraver, Belle Vernon and West Newtown communities and beyond..