Would you like to make an appointment?




  • Director of G.I. Department of Athens Naval Hospital
  • PhD in portal hypertension Athens University Medical School
  • European Diploma of Gastroenterology

Specialty Areas & Research Interest

Specialty Areas

  • Therapeutic Endoscopy
  • Gastroesophageal Reflux Disease
  • ERCP and EUS

Research Interest

  • Esophageal Diseases
  • Pancreaticobiliary diseases
  • ERCP

Professional Experience

  • Staff Physician of GI Department, Athens Naval Hospital, 1999-2003 and 2005-2008
  • Director of GI Department, Athens Naval Hospital, 2008-today
  • Athens Euroclinic, GI Department, 1999- today

Medical Degree
Aristotelian University of Thessaloniki, Military Medical School (1989)

Gastroenterology – Athens Naval Hospital and Evangelismos Hospital (1999)

  • Beth Israel Deaconess Medical Center, Boston MA (2003 – 2005)
  • Fellowship, Therapeutic Endoscopy, ERCP and EUS
  • Harvard Medical School,


  • Hellenic Gastroenterological Association’s 1st award for the best oral presentation of the 16th Hellenic Congress of Gastroenterology.   “Electrogastrography for the Assessment of Gastric Myoelectrical Activity in Type I Diabetes Mellitus”.  A.Mantides, G.Stefanidis , J.Kioulanis , G.Tzovaras, Epanomeritakis, E. Xynos.
  • Hellenic Gastroenterological Association’s  award for one of the three  best studies that were published in the year 2003.  G.Stefanidis, G.Karamanolis, N.Viazis, S.Sgouros, E.Papadopoulou, K. Ntatsakis, A. Mantides, H. Nastos,.  A comparative study of postendoscopic sphincterotomy complications with various types of electrosurgical current in patients with choledocholithiasis .  Gastrointestinal Endoscopy 2003; 57:192-197)
    • The same article was included in the references of the ASGE guidelines regarding the current types that should be used in therapeutic endoscopic procedures Technology Status Evaluation Report. Electrosurgical generators. Gastrointestinal Endoscopy 2003;58(5)656-660 (Ref. No 15)