Ssentongo was appointed Auxiliary Bishop of Masaka and
Titular Bishop of Pupiana on 15 December 1988. He was consecrated a bishop on 18 March 1989, by Bishop
Adrian Kivumbi Ddungu†, Bishop of Masaka assisted by Archbishop
Emmanuel Wamala, Coadjutor Archbishop of Kampala and Bishop
Paul Lokiru Kalanda†, Bishop of Moroto. Ssentongo served in that capacity until 30 March 1992. ==Other responsibilities==