Dr. Nikolaos Sakkas was born in Athens in 1978. After receiving a high school diploma from the "Hellenic Education" School, he was admitted to the School of Dentistry of the National and Kapodistrian University of Athens in 1995 and graduated in 2000 with the title of Dental Surgeon (DDS).
From 2001 to 2005, he retrained in the specialty of Oral Surgery at the Department of Oral and Maxillofacial Surgery of the University Clinic of Freiburg, Germany. In 2005 he obtained the title of Specialist in Oral Surgery from the Baden-Württemberg Dental Association (Landeszahnärztekammer Baden-Württemberg), while in 2007 he presented his doctoral thesis obtaining the title Dr.med.dent.
He completed his military service in 2007, since 2008 he has been exclusively practicing Oral Surgery in collaboration with private clinics and since 2011 he has maintained an exclusive Oral Surgery practice in Marousi.