Mark Douglas Pieper, 57, of Marshalltown, IA passed away Sunday, June 20, 2021 at MercyOne Des Moines Medical Center in Des Moines, IA. Visitation will be 5:00 p.m. to 7:00 p.m. Thursday, June 24, 2021 with a 7:00 p.m. vigil service at Anderson Funeral Home in Marshalltown. A private Graveside Service will take place at a later date. Online condolences may be sent to www.andersonfhs.com.