He studied law and political sciences in Athens, Paris and Rome.

A partner of Theodoros Deligiannis, he was elected member of the Greek Parliament for Achaea in 1885, 1887 and 1890.

During his ministry of education all the regional gymnasiums and athletic gyms in Greece were funded, constructed or reorganized.

He donated a large part of his fortune to the municipality of Patras.

He was honoured with a street name (Gerokostopoulou Street) that runs from Karaiskaki Street west to Othonos-Amalias Avenue via the Georgiou I Square with a 150 m gap.