Bp. Damaskinos attended and graduated with degrees from the University of Bethlehem and the University of Thessalonica. Since 1984, he has been a member of the faculty of the University of Thessalonica. He was [[enthronement|enthroned]] Archbishop of Jappa in 2000.
In 2002, Abp. Damaskinos was appointed Epitropos (administrator) of the [[parish]]es of the Jerusalem Patriarchate in the United States of America. On [[April 1]], 2008, at a meeting between His All Holiness Patriarch [[Bartholomew I (Archontonis) of Constantinople|Bartholomew]] of Constantinople and His Beatitude Patriarch [[Theophilus III (Giannopoulos) of Jerusalem|Theophilos III]] of Jerusalem, it was agreed that those Palestinian and Jordanian communities of the Patriarchate of Jerusalem within the ecclesiastical territory of the Ecumenical Patriarchate of Constantinople in the United States belong under the [[jurisdiction]] of the [[Eparch]]y of the [[Greek Orthodox Archdiocese of America]] and that the Patriarchate of Jerusalem surrendered all jurisdiction in the Western Hemisphere. To administer these communities, a vicariate named the "[[Vicariate for Palestinian
/Jordanian Communities in the USA]]" was established directly under the Greek Archbishop of America.[[http://www.goarch.org/news/2008-08-05-decisiononcommunities]]