Gastroenterologists for Colonoscopy in Athens

Polykseni Kalisperati is a Gastroenterologist with extensive clinical experience and a strong academic/research background, aiming to provide comprehensive and personalized care to each patient at her private practice. She is a graduate of the Medical School of the National and Kapodistrian University of Athens and holds a PhD from the Medical School of Athens.

She currently serves as an Assistant Gastroenterology Consultant B’ at the General Hospital of Athens "ELPIS," having also trained and worked for several years at the General Hospital of Athens "Laiko" (University Gastroenterology Clinic & Clinic of Pathological Physiology), gaining extensive experience across the full spectrum of modern Gastroenterology. She places special emphasis on interventional endoscopy, digestive oncology, neuroendocrine tumors, gastrointestinal infections (with a specialization in H. pylori), and gastrointestinal immunology/gastrointestinal manifestations of autoimmune diseases.

Additionally, she actively participates in scientific publications in international journals and is a regular speaker at conferences. She also maintains an educational role in Pathological Physiology at the Medical School of Athens, contributing to the teaching of undergraduate students.

At her practice, Dr. Kalisperati addresses each case with respect, empathy, and scientific evidence, dedicating time for meaningful discussion, proper information, and clear guidance. Her goal is accurate diagnosis, targeted treatment, and long-term follow-up with an emphasis on prevention and improvement of quality of life.

Dr. Papafragkakis Xarilaos is a Gastroenterologist - Hepatologist - Interventional Endoscopist and maintains a private practice in Kolonaki. He has been fully trained in the USA. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and specialized in Gastroenterology at the Brooklyn Hospital Center of Mount Sinai - Icahn School of Medicine in New York. He specialized in Interventional Endoscopy at the MD Anderson Cancer Center Hospital of the University of Texas and in Hepatology at the University of Miami - Jackson Memorial Medical Center. Additionally, he holds a specialty in Internal Medicine from the University of Illinois in Chicago and possesses certification from the American Board of Internal Medicine and Gastroenterology. Dr. Papafragkakis is the author of numerous publications in scientific journals and has extensive academic teaching experience. He is a scientific collaborator and performs endoscopies at the Euroclinic Athens Hospital in Ampelokipoi.

Dr. Dogantzis Panagiotis is a Gastroenterologist with private practices in Nea Smyrni and Patissia. He completed his specialty training at the Gastroenterology Department of the Nursing Foundation of the Army Mutual Fund Hospital (NIMTS) and the Internal Medicine Department of the General Prefectural Hospital of Sparta. The physician specializes in gastrointestinal endoscopy, including gastroscopy and colonoscopy, and in the management of esophageal, gastric, and colorectal diseases. Currently, alongside his private practice, he serves as an External Collaborator at Therapis General Hospital, REA Clinic, and the Athens Bioclinic. Furthermore, Dr. Dogantzis is a member of the Hellenic Gastroenterological Society and the Athens Medical Association. Committed to ongoing education and professional development in his field, he actively participates in both Greek and international conferences as well as educational programs.

Koutsounas Ioannis is a Gastroenterologist with a private practice in Athens (Nea Filothei area). He is an honored PhD graduate of the Medical School of Athens and an alumnus of the Medical School of Ioannina. He has undergone advanced training in Digestive Endoscopy techniques at the internationally renowned John Radcliffe University Hospital in Oxford, United Kingdom, as a scholar of the Hellenic Gastroenterological Society. He obtained his specialization in Gastroenterology at the "Laiko" and "Sismanogleio" Hospitals in Athens, and his experience has also been enriched at major hospitals and centers abroad, such as John Radcliffe (Oxford), Queen Alexandra (Portsmouth), and the Bank of Cyprus Oncology Center (Nicosia). Currently, he holds the position of University Fellow (full-time salaried collaborator, equivalent to an attending physician) in the 3rd Medical Clinic of the Medical School of the University of Athens at "Sotiria" Hospital, within the Gastroenterology Department, where he works during morning hours. Additionally, he is one of the few gastroenterologists in Greece who holds the European Diploma in Gastroenterology and Hepatology (European Section and Board of Gastroenterology and Hepatology) after examinations. He is a member of various Greek and international scientific societies and associations, has participated in numerous gastroenterology-related conferences and seminars, and has a notable publication record in international journals. He possesses significant experience and skill in Diagnostic and Therapeutic Digestive Endoscopy (Polypectomies - EMR, Dilations, Endoscopic Hemostasis), resulting from the high-standard training he has received abroad.

Mparmpounakis Panagiotis is a Gastroenterologist - Hepatologist with private practices in Neo Psychiko and Salamina. Additionally, he sees patients at the outpatient clinics of Iatriko Psychiko and Iatriko Palaio Faliro (Athens Medical Group). His extensive studies in Greece and abroad, combined with his personal dedication to the patient's problem, ensure excellent provision of medical care and management of health issues. The physician's long-term involvement and experience in gastroenterology, digestive oncology, idiopathic inflammatory bowel diseases (Crohn's disease, ulcerative colitis), continuous scientific updating, and his distinguished team of collaborators enable proper management of a wide range of gastroenterological conditions. He performs advanced endoscopic, diagnostic, interventional, and therapeutic techniques such as Radiofrequency Ablation (RFA) application in Barrett's esophagus, a method that essentially revolutionizes its treatment, endoscopic mucosal resection (EMR), magnifying endoscopy, high-definition chromoendoscopy for the prevention and early diagnosis of early cancer and precancerous conditions in the digestive system, and Narrow Band Imaging (NBI). More specifically, he performs endoscopic application of Radiofrequency Ablation (RFA) in Barrett's esophagus, cauterization - endoscopic hemostasis of upper and lower gastrointestinal lesions with Argon Plasma Coagulation (APC), small bowel examination with wireless PILL CAM capsule, gastroscopy - CLO Test for Helicobacter pylori detection, liver and biliary diseases, anemia investigation, celiac disease screening, treatment of malabsorption syndrome, diagnosis and treatment of idiopathic inflammatory bowel diseases.

Η Βικτώρια Θώδου, MD,PhD, είναι Γαστρεντερολόγος – Ηπατολόγος με εξειδίκευση στην επεμβατική ενδοσκόπηση ανώτερου – κατώτερου πεπτικού και χοληφόρων αγγείων.Γεννημένη και μεγαλωμένη σε αθηναϊκό προάστιο, η γιατρός εισήχθη με Πανελλαδικές Εξετάσεις στην Ιατρική Σχολή του Πανεπιστημίου Αθηνών το 2005, από όπου αποφοίτησε μετά από εξαετή φοίτηση.Αμέσως μετά την αποφοίτησή της, το 2011, μετέβη στη Γερμανία και συγκεκριμένα στο Πανεπιστήμιο του Έσσεν (Universitätsklinikum Essen), ονομαστό πανεπιστημιακό νοσοκομείο και το μεγαλύτερο μεταμοσχευτικό κέντρο ήπατος της Γερμανίας, για την ειδίκευσή της αρχικά στη Γενική Παθολογία, τον τίτλο της οποίας απέκτησε το 2017.Το 2020, ενώ ήδη διατελούσε χρέη επιμελήτριας στην ίδια κλινική, απέκτησε και τον τίτλο της Γαστρεντερολογίας και Ηπατολογίας.Κατά την εκπαίδευσή της μαθήτευσε δίπλα στον ονομαστό καθηγητή Univ.-Prof. Dr. Alexander Dechêne, σε διαγνωστικές αλλά και επεμβατικές πράξεις. Από το 2019 ξεκίνησε τις ενδοσκοπικές εφημερίες επείγουσας γαστρεντερολογίας παίδων και ενηλίκων, στο πλαίσιο των οποίων απέκτησε μεγάλη εμπειρία στην αντιμετώπιση επειγόντων περιστατικών σε ενήλικες (αιμορραγία ανώτερου και κατώτερου πεπτικού, στάση βλωμού, παραλυτικός ειλεός από κοπρόσταση, χολαγγειίτιδα), αλλά και σε βρέφη – παιδιά (αιμορραγία ανώτερου και κατώτερου πεπτικού, στάση βλωμού, κατάποση ξένου σώματος).Παράλληλα, συνεργάστηκε με τον διευθυντή της κλινικής, καθηγητή Univ.-Prof. Dr. med. Heiner Wedemeyer, παγκόσμιας φήμης και αναγνώρισης καθηγητή ηπατολογίας, ως βασική εκπρόσωπος – συνεργάτις του στα προσωπικά του εξωτερικά ιατρεία ηπατολογίας.Στα ανεξάρτητα εξωτερικά ιατρεία του πανεπιστημίου εργάστηκε πολυετώς, ασχολούμενη κυρίως με ηπατολογικά περιστατικά, καθώς και με φλεγμονώδεις νόσους του εντέρου και με μεταμοσχευμένους ήπατος.Στο διδακτικό της έργο περιλαμβάνεται η θεωρητική και πρακτική εκπαίδευση των φοιτητών της Ιατρικής Σχολής του Πανεπιστημίου του Έσσεν και των ειδικευομένων στη Γαστρεντερολογία.Με αυτά τα εφόδια, εξειδικεύτηκε για δύο ακόμη χρόνια στο καθολικό κρατικό νοσοκομείο του Έσσεν, Huyssenstift, κέντρο αναφοράς γενικής χειρουργικής και ογκολογίας, σε βαριές επεμβατικές ενδοσκοπικές πράξεις όπως ERCP και EUS.Στο ακαδημαϊκό της έργο, πέρα από τη διδακτορική της διατριβή στις ιογενείς ηπατίτιδες, συγκαταλέγονται αρκετές δημοσιεύσεις, κυρίως στον τομέα της ηπατολογίας (με βράβευση εργασίας σε πανγερμανικό συνέδριο), καθώς και η συμμετοχή σε πολυκεντρικές μελέτες.Αποτελεί τακτικό μέλος της Ευρωπαϊκής Εταιρείας Γαστρεντερολογικής Ενδοσκόπησης (ESGE), της Γερμανικής Εταιρείας Γαστρεντερολογίας και Μεταβολικών Νοσημάτων (DGVS), της Ελληνικής Γαστρεντερολογικής Εταιρείας (ΕΓΕ) και της Επαγγελματικής Ένωσης Γαστρεντερολόγων Ελλάδος (ΕΠΕΓΕ).Συμμετέχει όλα αυτά τα χρόνια σε διεθνή επιστημονικά συνέδρια που αφορούν τη Γαστρεντερολογία και την Ηπατολογία, και ιδιαίτερα το επεμβατικό τους μέρος.Από το καλοκαίρι του 2023, ύστερα από υπερδεκαετή παραμονή στη Γερμανία, επιστρέφει στη γενέτειρά της, δραστηριοποιούμενη στο Ιατρικό Κέντρο Αθηνών με τον τίτλο της Αναπληρώτριας Διευθύντριας της Β΄ Γαστρεντερολογικής Κλινικής, ενώ συνεργάζεται και με την Κλινική του Ψυχικού.Προς διατήρηση των ακαδημαϊκών της δραστηριοτήτων,συνεργάζεται επίσης με την πανεπιστημιακή κλινική του Λαϊκού Νοσοκομείου ως εξωτερική συνεργάτης.

Sazanidis Vasileios is a Gastroenterologist and maintains a private practice in Dafni. He graduated from the Medical School of Aristotle University of Thessaloniki and received a scholarship from the Hellenic Foundation of Gastroenterology and Nutrition for advanced training in the United Kingdom, specializing in interventional endoscopy at the Victoria Hospital of Blackpool. During his training, he performed a large number of colonoscopies, gastroscopies, sigmoidoscopies, ERCPs, as well as endoscopic gastrostomies, esophageal stent placements, esophageal variceal ligations, endoscopic hemostasis, esophageal dilations, and numerous polypectomies and mucosectomies. He specialized in Internal Medicine at the 424 General Military Training Hospital of Thessaloniki and in Gastroenterology at the 1st Propaedeutic University Clinic of the General Hospital of Athens "Laiko." He has worked at the private clinic "Central Clinic of Athens" and as an external Scientific Collaborator at the Hepatology Clinic of the University Gastroenterology Clinic of the General Hospital of Athens "Laiko." Since 2019, he has been working at the Diagnostic Medical Center "Kosmoiatriki" and has been working periodically as a Gastroenterologist in various hospitals in the United Kingdom since 2014, conducting clinical work, endoscopies, and outpatient clinics (Royal Bournemouth Hospital, Bournemouth - Darlington Memorial Hospital, Darlington - St Helier Hospital, London - James Paget Hospital, Great Yarmouth - Bristol Royal Infirmary, Bristol). Finally, he is an Accredited Member of the British Society of Gastrointestinal Endoscopy (JAG).