Fr. Mraz was born and raised in the Bethlehem area. He is a graduate of Lehigh University and Mount Saint Mary’s University. Fr. Mraz was ordained a priest for the Allentown diocese.

Fr. Mraz has been a Theology teacher, Vice Principal, Assistant Superintendent of Education, Director of the Newman Center at Lehigh and is now the pastor at Assumption BVM in Northampton, PA and Director of the Office for Ecumenism and Interreligious Dialogue for the Diocese of Allentown.

In the year 2000 he was installed in the Equestrian Order of Knights of the Holy Sepulcher at St. Patrick’s Cathedral in New York City.