He was born in Thessaloniki, Greece. After graduating with honors from the Thessaloniki State Conservatory, he entered the National Conservatory in Paris in the class of Bernard Ringeissen and Jacques Rouvier (Prix d’ Excellence, Prix de Perfectionement). He also attended master classes with Paul Badura Skoda and Bruno Leonardo Gelber.
In 1993 he won the first prize in the National Chamber music competition and in 1998 he won the second prize in the National Piano Competition.
He has made many appearances as soloist as well as chamber music player in USA, France, Germany, Spain, Italy, Cyprus, Romania and Egypt playing among others with the famous pianist Cyprien Katsaris and the Enesco Quartet, and with such orchestras as the Philharmonia of Greensboro, the Westchester Univerisity Orchestra, the Symphonia Bucharest Orchestra and the Thessaloniki State Symphony Orchestra. He has given master classes at the Univerisity of Catania in Italy.
Konstantinidis appeared in several International Festivals where his performance was highly praised by the press. Recently he found great interest in the repertory for the left hand.
In April 2006, April 2008 and April 2010, he organized in collaboration with the Aristotle University of Thessaloniki and the Institute of Music Physiology and Musicians’ Medicine in Hanover, the First and Second and Τhird International Musicians’ Medicine Congresses in Greece.
Up until 2010, he was director of the State Conservatory of Thessaloniki, the only one in Greece.
He is currently President of the Thessaloniki Conservatories Board of Alumni, Vice President of the Friends of the Thessaloniki State Symphony Orchestra and Vice President of the Hellenic Association for the Medicine and Sciences of Dance and the Performing Arts.
He holds a degree and a master’s diploma in law.