Titular bishop
In 1993 Marcuzzo was appointed Auxiliary Bishop of the Latin Patriarch of Jerusalem as Titular bishop of Siminina. He was consecrated bishop on the hands of the Latin Patriarch of Jerusalem Michel Sabbah on 3 July 1993 in the Church of the Holy Sepulchre. From 29 October 1994 he became titular bishop of Emmaus-Nicopolis. He resides in Nazareth as patriarchal vicar for Israel.