Doctor Demetrios Demetriou received his medical degree (MD) from the Russian State Medical University of Moscow in 2003 with Cum Laude. He then moved to Sweden where he completed his two residency trainings in Internal Medicine & Gastroenterology/Hepatology respectively at the University Hospital of Orebro (USÖ). Doctor Demetrios Demetriou trained in Hepatology at the University Hospital in Karolinska, Stockholm.

Doctor Demetrios Demetriou relocated to Cyprus in 2017 and has been practicing private practice since then. 

He is a member of the Pancyprian Medical Association, the Swedish National Health and Welfare Council, and the Cyprus and Swedish Gastroenterological Society.