Education and Professional Experience

1979-1983: Pharmacy School Degree ,University of Athens

1985-1989: Medical School Degree , University of Ioannina

1989-1991: Rural service Doctor

1991-1993: Internal Medicine, Patision General Hospital

1993-1997: Gastroenterology  NIMTS Hospital Athens

1995-1996: Honorary Reg. Royal Berkshire Hospital ,Reading U.K

1997: Medical thesis in Gastroenterology, University of Athens

1998-2015: Gastroenterologist in Outpatients in Public Health System

1998-Today: Gastroenterologist in my Private office

2006-Today: Honorary Registrar Gastroenterology Clinic ,Evaggelismos Hospital

2015-2016: Assessor of Clinical Trials in National Organization for    Drugs

2016-2021: Deputy Head Research Department, National Organization for Drugs

2017-Today: Research Associate in Pharmacology , Medical School University of Athens.

2021-Today: Head of Clinical Trials Department, National Organization for Drugs

2022: Specialization in Clinical Pharmacology ,Ministry of Health

PUBLICATIONS-CITATION

Doppler US of superior mesenteric artery in the assessment of ulcerative colitis. A prospective study.

N Kalantzis, P Rouvella, S Tarazis… -Journal of Hepato-gastroenterology, 2002

Endoscopic ultrasonography in the preoperative staging of colorectal cancer.

Gabriel, P Papagiannis, S Tarazis… – Journal of  Hepato-gastroenterology 2002

[CITATION] The dietary habits of patients with peptic ulcer disease

M Radou-Sfiri, LS Kalli, DA Zachariadis, S Tarazis… – …, 1995 – WB Saunders

[CITATION] Diagnosis of H-pylori infection: Comparison of sensitivity and specificity of 2, 3 and 5 gastric biopsies for the rapid slide biopsy urease (Clo) test

S Tarazis, S Tsoris, A Thillainayagam… – …, 1997 – BRITISH MED JOURNAL

[CITATION] Endoscopic ultrasonography in the differential diagnosis of gastric ulceration                                                                         

E Papavassiliou, S Tarazis… – HELLENIC GASTOENTEROLOGY, 1997 – THE HELLENIC SOCIETY OF Gatroenterology

[CITATION] Evaluation of ulcerative colitis activity (extension) by measurement of superior mesenteric artery velocity with Doppler ultrasound

NC Kalantzis, S Tarazis… – …, 1999 – … CO-ELSEVIER INC 1600 JOHN F

[CITATION] Endoscopic Ultrasonography in the Differential Diagnosis of Suspicious Gastric Ulcer

E Papavassiliou, S Tarazis… – …, 1999 – INTERNATIONAL UNIVERSITY