Marcis LEJA

Pubmed Publications List

Professor of Medicine
Vice-dean, Faculty of Medicine, University of Latvia
Gastroenterologist, Digestive Diseases Centre GASTRO
19 Raina boulv., Riga 1586, Latvia

phone: +371-29497500 

fax: +371-67040248 



​​Short CV:

Marcis Leja Studied Medicine at Riga Medical institute (now: Riga Stradins’ University), got trained in Internal Medicine and Gastroenterology in the same University. Has been responsible for the training program in gastroenterology in University Clinic “Linezers” (1992-1995), since 1998 – involved in post-graduate training in gastroenterology. Associate Professor at Faculty of Medicine since 2007, Professor of Medicine – since 2014.

He is heading the Department of Research at Riga East University hospital and employed as a consulting gastroenterologist indigestive Diseases Diseases Centre GASTRO. He is member of editorial boards of Digestive Diseases and Sciences, American Journal of Cancer Epidemiology and Prevention, Exosomes and Microvesicles, Vestnik of Vitebsk State Medical University.


  • 1988 - Graduation in Medicine, Riga Medical Institute (currently Riga Stradins’ University), Faculty of General Medicine

  • 2003 - PhD thesis on the diagnostics and clinical significance of duodenogastric reflux, Riga Stradins’ University

  • 2003 - Graduation from MBA studies, Riga International College of Economics and Business Administration

Professional Experience

  • 1988-1990 - Fellowship in Internal Medicine, Latvia Academy of Medicine (currently Riga Stradins’ University)

  • 1991-1992 - Fellowship in Gastroenterology, Latvia Academy of Medicine (currently Riga Stradins’ University)

  • 1992-1998 - Internist - gastroenterologist, physician-lecturer, University Clinic “Linezers”

  • 1999-present - Consulting gastroenterologist, hospital “Linezers”, now – Riga East University hospital

  • 1999-present - Consulting gastroenterologist, Diseases Diseases Centre GASTRO

  • 2004-present - Teaching staff at Faculty of Medicine, University of Latvia

  • 2005-present - Head, Department of Research at Riga East University hospital

Research interests
Helicobacter pylori, gastritis and gastric cancer, prevention of gastrointestinal cancer, celiac disease, diagnostic methods in gastroenterology and oncology

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The EHMSG is a member of the United European Gastroenterology, a professional non-profit organisation combining all the leading European societies concerned with digestive disease.
UEG represents over 22,000 specialists, working across medicine, surgery, paediatrics, GI oncology and endoscopy. This makes UEG the most comprehensive organisation of its kind in the world, and a unique platform for collaboration and the exchange of knowledge.