He is an internist and intensivist specialized in Internal Medicine and in Immunology of Infectious Diseases at the 4th Department of Internal Medicine at ATTIKON University General Hospital. He received his PhD from the National and Kapodistrian University of Athens Medical School in February 2010 on the immunomodulatory properties of intravenous clarithromycin in experimental sepsis by multidrug-resistant Klebsiella pneumoniae. He has 26 peer-reviewed publications in international medical journals.