Gastroenterologists for Colonoscopy

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.

Zlatinoudis Xaralampos is a Gastroenterologist-Hepatologist who maintains a private practice in Argyroupoli. Simultaneously, he provides his services at Metropolitan General in Cholargos, with his office located at the headquarters of the 3rd Gastroenterology and Hepatology Clinic. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and holds a Master's degree in "Health Units Management." He has obtained the European Diploma in Gastroenterology and Hepatology (ESEGH) and the Membership of the Royal Colleges of Physicians of the United Kingdom diploma – MRCP(UK). He has specialized in endoscopic ultrasound (EUS), having received official recognition from the Ministry of Health. The physician has attended endoscopic seminars of the Joint Advisory Group on GI Endoscopy (JAG) of the Royal College of Physicians in the United Kingdom as well as those of the Hellenic Gastroenterological Society and has completed the Hepatology School of the Hellenic Liver Study Society. He earned the specialty title in Gastroenterology after training in university hospitals of the Northern Deanery in the United Kingdom and in Greece (Metaxa Cancer Hospital of Piraeus). Through a scholarship from the UEG organization, he participated as a visiting Consultant in the activities of the Gastroenterology department of Clinical Hospital Center Rijeka, which is one of the European Gastroenterology Centres of Excellence and a certified center for the interdisciplinary and holistic management of obesity by the European Association for the Study of Obesity (EASO). The physician manages a wide range of cases and possesses broad expertise, providing high-level services with modern, high-definition technological equipment.

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.

Floudaras Ioannis is a specialist Gastroenterologist – Hepatologist - Interventional Endoscopist with many years of experience in the field of Gastroenterology and Hepatology, maintaining a private practice in Evosmos. He serves as a Consultant at Euromedica Kyaneos Stavros, Bioclinic, and Agios Loukas Clinic. His mission is to provide high-quality medical care to his patients, combining scientific knowledge with a patient-centered approach. The clinic offers a wide range of specialized Gastroenterology and Hepatology services. The objective is to deliver high-quality medical care with an emphasis on the prevention, diagnosis, and treatment of Gastrointestinal and Liver diseases. Utilizing the most advanced methods and technologies, the best possible care for patients is ensured. He is committed to continuous education and staying informed about new developments in the field, thereby offering the most up-to-date and effective therapeutic options.

Margetis Nikolaos is a Gastroenterologist and maintains a private practice in Ambelokipoi. He holds a PhD from the Medical School of the National and Kapodistrian University of Athens and is certified in ATLS (Advanced Trauma Life Support) by the American College of Surgeons. Additionally, he is specialized in hepatology and endoscopic gastroenterology. At his private practice, each patient can receive information regarding oncology issues related to the organs of the digestive tract, liver, and pancreas. He offers a range of gastroenterological services to patients including gastroscopy, colonoscopy, rectoscopy, polyp removal, and breath testing for Helicobacter pylori. Furthermore, he has extensive experience in interventional endoscopy, performing endoscopic procedures of the upper and lower gastrointestinal tract. He ensures continuous education by actively participating in approximately 40 international medical conferences, lectures, oral presentations, and chairing sessions at 6 international medical conferences. He has been actively involved in around 250 Greek medical conferences, oral presentations, speeches, and chairing sessions at 50 Greek medical conferences, as well as hands-on training at 20 conferences with practical participation. Moreover, he has contributed a substantial body of written work to international and Greek medical journals, as well as to proceedings of international and Greek medical conferences, and possesses teaching experience at university medical schools. Finally, he is the recipient of numerous Distinctions and Awards.

Theoxaridou Athina is a Gastroenterologist with a private practice in Thessaloniki. She is a PhD candidate at the Aristotle University of Thessaloniki, has completed postgraduate courses in gastroenterology from the Northern Greece department, and holds a medical degree from the School of Health Sciences of the same University. Additionally, Dr. Theoxaridou has extensive experience in interventional endoscopy (polypectomies and stent placements, gastrostomies), as well as in managing chronic diseases of the intestine, liver, biliary tract, and pancreas. She serves as a Scientific Collaborator at the clinic of the University General Hospital "AHEPA" and at the Bioclinic of Thessaloniki and is a member of the Medical Association of Thessaloniki. Finally, she has participated in numerous scientific conferences, seminars, and workshops such as the annual Panhellenic Gastroenterology Conference, the seminar of the Hellenic Nephrology Society on "Infections and Kidney," and the scientific workshop on "Neoplasms and Kidney."

Digenakis Emmanouil is a Gastroenterologist and maintains a private practice in Chania. He graduated from the Medical School of the University of Thessaly, specialized in the Gastroenterology Clinic of PAGNI, and received advanced training in endoscopic ultrasound (EUS) at GNA Gennimatas. The physician has served as a Consultant at Primary Healthcare Centers of the 2nd Regional Health Authority and at the General Hospital of Piraeus "Tzaneio," while maintaining collaborations with the Hippocrates Diagnostic Center (Nikaia), General Clinic Therapeutirion Athinon (Kypseli), and MediOne Group, where he is the scientific director of the endoscopic-gastroenterological department. The physician manages a wide range of cases, always focusing on providing the best possible care tailored to each patient's needs.

Giannousis Ioannis MD, PhD is a Specialist Gastroenterologist - Hepatologist - Interventional Endoscopist based in Gerakas, maintaining a private practice there. He holds a Doctorate from the Medical School of the National and Kapodistrian University of Athens and has received advanced training in Interventional Endoscopy and Endoscopic Ultrasound (EUS) at the Vita-Salute San Raffaele University Hospital in Milan, Italy. He is affiliated with Euroclinic Athens and is part of the Medisystem network of physicians. His private practice operates a modern Endoscopic Unit equipped with advanced sterilization systems, state-of-the-art endoscopes, and an electrosurgical unit for performing interventional endoscopic procedures (polypectomies). All endoscopic procedures (gastroscopies - colonoscopies) are performed painlessly, with mild sedation (conscious sedation) or under anesthesiologist supervision when necessary. The physician undertakes the investigation of iron deficiency anemia, diagnosis, monitoring, and treatment of diseases of the digestive system (esophagus, stomach, pancreas, biliary tract, small and large intestines), as well as patients with hepatological conditions. Additionally, he holds a license from the Ministry of Health to perform gastroenterology specialty ultrasounds and provides home visits for urgent cases.

Dr. Koukias Nikolaos is a Gastroenterologist with a private practice in Patras. He graduated from the Medical School of the University of Patras and received further training at renowned digestive endoscopy centers at the Royal Free Hospital in London and Jichi Medical University Hospital in Japan. He specialized in the Gastroenterology Clinic of the University Hospital of Patras. He worked for four years in London, initially as a Clinical and Scientific Associate and later as a Consultant in the University Gastroenterology and Hepatology Clinic at the Royal Free Hospital. Within the framework of his research work, he has participated in 26 publications in international scientific journals, while to date, 301 scientific publications (journals and books) have cited the results of his work. He is a member of the European Society of Gastrointestinal Endoscopy.

Kosmidis Xaralampos is a Gastroenterologist and maintains a private practice in Cholargos. He holds a medical degree from the Medical School of Semmelweis University in Budapest and specializes in inflammatory bowel diseases and endoscopic gastroenterology. He completed his specialty training in Gastroenterology at the University Gastroenterology Clinic of "Laiko" Hospital. He has served as an assistant consultant (B' level) at the Gastroenterology Clinic of the General Hospital of Athens "Georgios Gennimatas." He performs endoscopies at the Metropolitan General Hospital in Cholargos. He has significant professional experience and in his private practice, he treats the full spectrum of digestive system disorders, such as irritable bowel syndrome, dyspepsia, inflammatory bowel diseases, and others. Finally, the doctor is a member of the Hellenic Gastroenterological Society, the Professional Association of Gastroenterologists of Greece, the Hellenic Foundation of Gastroenterology and Nutrition, the Hellenic Group for the Study of Inflammatory Bowel Diseases (EOMIFNE), and the Hellenic Liver Study Society.

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).

Georgios Xrysakopoulos is a Gastroenterologist who maintains a private practice in Trikala, Thessaly. He graduated from the Medical School of Aristotle University of Thessaloniki and completed his specialty in Gastroenterology at the Endoscopy Department of the 1st IKA Therapeutic Hospital in Athens and at the Gastroenterology Clinic of the General Oncology Hospital of Kifisia "Agioi Anargyroi". Additionally, he is certified by the European Board of Gastroenterology and Hepatology and possesses knowledge in other medical fields, including Pathology, Cardiology, and Surgery. To date, he serves as a Scientific Collaborator at the General Clinic IASO Larissa, and previously participated in the work of the University Clinic "Agioi Anargyroi" concerning liver diseases. Furthermore, he has participated in numerous conferences and seminars both as a delegate and a speaker, is a member of medical associations in Greece and abroad, and has published articles in scientific journals.

Papadopoulou Iliana MD, MSc, PhD, FEBGH is a Gastroenterologist maintaining a private practice in Patras. She graduated from the Medical School of the National and Kapodistrian University of Athens with postgraduate studies in Health Unit Management (Hellenic Open University) and holds a doctoral degree from the Medical School of the University of Patras. She has obtained the European Specialty Diploma in Gastroenterology and Hepatology (ESEGH) and has additionally trained in ultrasound and interventional endoscopy through international hands-on courses. She possesses extensive clinical experience in both the public and private sectors, having served as head of the endoscopy unit in a diagnostic center, while maintaining a private practice. She has worked in tertiary care hospitals, completing her specialty training at the Gastroenterology Clinic of the National Cancer Institute "Metaxa". Her scientific activity includes publications in international journals, participation in national and international conferences as a speaker and author of studies, while continuously pursuing further education in the fields of Gastroenterology and Hepatology.

Ο Αθανασόπουλος Νικόλαος είναι Γαστρεντερολόγος - Ηπατολόγος - Επεμβατικός Ενδοσκόπος και διατηρεί ιδιωτικό ιατρείο στον Πειραιά. Σπούδασε στην Ιατρική Σχολή του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Πραγματοποίησε την ειδικότητα της Γαστρεντερολογίας στο Γενικό Κρατικό Νοσοκομείο Νίκαιας. Έχει πλήρη εξειδίκευση και μετεκπαίδευση σε όλες σχεδόν τις πτυχές της ειδικότητας. Έχει μετεκπαιδευτεί στον τομέα της επεμβατικής ενδοσκόπησης στο Ευρωπαϊκό Ενδοσκοπικό Εκπαιδευτικό Κέντρο του Πανεπιστημιακού Νοσοκομείου της Ρώμης "Universita Cattolica del Sacro Cuore" και στο περίφημο Ενδοσκοπικό Κέντρο Εκπαίδευσης των Βρυξελλών (πολυπεκτομές, αντιμετώπιση οξείας αιμορραγίας ανωτέρου και κατωτέρου πεπτικού, αντιμετώπιση περιπτώσεων ενσφήνωσης βλωμού, τοποθέτηση ενδοσκοπικής γαστροστομίας, οισοφαγικών και εντερικών stent, ERCP). Επίσης, διαθέτει σημαντική κλινική εμπειρία στις κινητικές παθήσεις του γαστρεντερικού συστήματος, καθώς ο ιατρός ήταν αναπόσπαστο μέλος του Εργαστηρίου Κινητικών Διαταραχών της Γαστρεντερολογικής Κλινικής του Πανεπιστημίου Αθηνών. Μακρόχρονη και βαθιά είναι η εμπειρία και η γνώση που έχει αποκτηθεί στην Ιδιοπαθή Φλεγμονώδη Εντερική Νόσο, καθώς είχε την τύχη να θητεύσει κατά τα χρόνια της ειδίκευσής του στο τριτοβάθμιο ειδικό κέντρο για φλεγμονώδη νοσήματα του Γενικού Νοσοκομείου Νίκαιας, ένα από τα ελάχιστα κέντρα αναφοράς ΙΦΕΝ (ελκώδης κολίτιδα και νόσος Crohn) στη χώρα μας. Ο ιατρός έχει επίσης μετεκπαιδευθεί στην κλινική ηπατολογία, έχοντας παρακολουθήσει τις εργασίες του 4ου Σχολείου Κλινικής Ηπατολογίας κατά το ακαδημαϊκό έτος 2010 - 2011. Η συνεχής και άσβεστη επιστημονική και ερευνητική του δίψα αποδεικνύεται από το πλήθος δημοσιευμένων εργασιών, ανακοινώσεων, διαλέξεων, ομιλιών σε ελληνικά και ξένα περιοδικά και συνέδρια, καθώς και από τη συμμετοχή σε διεθνείς πολυκεντρικές μελέτες για την αναζήτηση και έρευνα νέων φαρμακευτικών θεραπειών που αφορούν κυρίως στις νόσους της ελκώδους κολίτιδας, νόσου Crohn και ηπατίτιδας B και C. Το μεγαλύτερο όμως παράσημο στην ως τώρα ζωή και καριέρα του θεωρεί ότι είναι η ίδρυση και συμμετοχή σε μια ανθρωπιστική οργάνωση, που ονομάζεται "ΔΩΣΕ ΕΛΠΙΔΑ", που ως στόχο έχει την δωρεάν και ανιδιοτελή παροχή βοήθειας σε χρόνιους πάσχοντες από νεοπλασματικά και μη νοσήματα. Αποτελεί ιδρυτικό στέλεχος και είναι αντιπρόεδρος του οργανισμού από το 2010.

Sioulas Athanasios MD, PhD, FEBGH is a Gastroenterologist with a private practice in Chalandri. He holds a doctorate from the Medical School of the National and Kapodistrian University of Athens and is also a graduate of the same institution. He completed his specialty training in Gastroenterology at the Hepatogastroenterology Unit of the 2nd Propaedeutic Medical Clinic of the University General Hospital "Attikon" and subsequently undertook advanced training as a fellow of the Hellenic Gastroenterology Society in the Endoscopy Department of the Universitätsklinikum Hamburg - Eppendorf (UKE) in Hamburg, Germany. His advanced training focused on diseases of the pancreas and biliary tract with an emphasis on endoscopic diagnostic and therapeutic techniques (ERCP, cholangioscopy). In addition to his clinical activities, Dr. Sioulas has a special interest in basic and clinical research in the field of gastroenterology, with numerous publications in reputable international scientific journals and presentations at Greek and international conferences. Currently, he practices general gastroenterology and hepatology, covering the entire spectrum of digestive system diseases, with an emphasis on endoscopic diagnostic and therapeutic methods. He works closely with leading surgeons, oncologists, radiologists, and radiotherapists to provide his patients with high-quality services in accordance with current clinical guidelines. Finally, Dr. Sioulas is a member of the Hellenic Gastroenterological Society, the European Board of Gastroenterology and Hepatology, and the European Society of Gastrointestinal Endoscopy.

Mpartzis Leonidas is a Gastroenterologist with a private practice in Pefka. He holds a medical degree from the "Victor Babes" Medical University and completed further training as a fellow of the Hellenic Gastroenterology Society (HGS) at the Liver and Digestive Disease Center in Edinburgh. Additionally, he is specialized in endoscopic retrograde cholangiopancreatography (ERCP) within the interventional endoscopy department of the University Hospital of Athens "Aretaiio," as well as in diagnostic and therapeutic gastrointestinal endoscopy. The doctor also has significant experience across the full spectrum of interventional endoscopy, including gastroscopy, colonoscopy, polypectomy, ERCP, gastrostomy placement, etc., and has been actively involved with wireless capsule endoscopy and diseases of the small intestine.