Grigorios Chatzantonis was born on the 12th of April, 1989 in Athens, Greece. He graduated the Hellenic-American Educational Foundation (HAEF) with high honors (19,000/20,000).
As a student he was awarded with the 1st award in an panhellenic chess contest as well as the 3rd award in the panhellenic math competition (Euclid 1997).
He graduated the medical school of Democritus University 2013 with honors (8,17/10,00).
His cardiology fellowship began November 2013 in Germany. From August 2016 he works in the University of Munster (UKM) where he specialized in cardiovascular imaging and acute patient care.
As of September 2018 he trains in cardiovascular magnetic resonance (CMR) in a Level 3 certificated medical centre under the guidance of Professor Ali Yilmaz.
His medical interests are cardiovascular imaging, cardiomyopathies and microvascular dysfunction.