On Tuesday, 24 November 2015, Deacon Kardiaman Xaverius Simbolon O.Carm. was ordained as a priest at the Tigalingga Carmelite Parish in North Sumatera Indonesia by the archbishop of Medan, Mgr. Anicetus Bongsu Sinaga.

Fr. Kardiaman was born on June 11, 1987 in Parsiroan, North Sumatera, Indonesia. He is the first son of Pandapotan Simbolon and Ani br Sinaga. He was raised in a good Catholic family and participated actively in the Blessed Virgin Mary of Mount Carmel Parish in Tigalingga, a parish run by the Carmelites. He had his solemn profession on July 16, 2014 in Malang.

His first assignment is to become the assistant to the parish priest of Parongil Parish, North Sumatera, Indonesia.