Gastroenterologists for Gastroscopy

Dr. Petros Stathopoulos is a Gastroenterologist and Interventional Endoscopist with extensive clinical, academic, and research experience gained in leading university hospitals in Germany. Since 2026, he has been affiliated with the 3rd Department of Gastroenterology at HYGEIA Hospital in Athens. Prior to this, he served as Deputy Head of the Endoscopy Unit and Consultant Gastroenterologist at the University Hospital of Marburg, Germany.He graduated from the Medical School of the National and Kapodistrian University of Athens and completed his specialty training in Internal Medicine and Gastroenterology in Germany. His clinical expertise encompasses the full spectrum of diagnostic and therapeutic gastrointestinal endoscopy, including advanced procedures such as Endoscopic Submucosal Dissection (ESD), Endoscopic Full-Thickness Resection (eFTR), Endoscopic Ultrasound (EUS), ERCP, and the management of complex gastrointestinal neoplasms.Dr. Stathopoulos has received advanced training at internationally renowned centers, including Keio University Hospital in Tokyo, Japan, and Hôpital Édouard Herriot in Lyon, France, with a special focus on advanced endoscopic resection techniques. He has also played a key role in the certification and quality assurance processes of multidisciplinary oncology centers specializing in pancreatic and colorectal cancer.His scientific work includes numerous publications in peer-reviewed international journals and presentations at major European gastroenterology and endoscopy conferences. He is an active member of several prestigious scientific societies, including the German Society of Gastroenterology (DGVS), the European Society of Gastrointestinal Endoscopy (ESGE), and the German Society for Endoscopy and Imaging Techniques (DGE-BV).

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.

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.

Tzitzi Dimitra is a Gastroenterologist who has maintained a private practice in Chalandri since 1992. She is a graduate of the Medical School of Aristotle University of Thessaloniki with a degree grade of "excellent." She was a scholarship recipient of the State Scholarships Foundation for every academic year and obtained the specialty title in Gastroenterology. She served as a Consultant in the Endoscopy Department of the 1st IKA Hospital for a decade. She has a fully equipped office and performs esophagogastroscopies, rectoscopies, proctoscopies, colonoscopies, abdominal ultrasounds, and endoscopic polypectomies of the stomach and large intestine. Additionally, she provides treatment for gastroesophageal reflux disease – Barrett's esophagus – and inflammatory bowel diseases such as ulcerative colitis and Crohn's disease. Finally, she has participated in numerous scientific papers presented in Greek and international scientific journals and is a member of Greek and European medical associations.

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."

Georgios Anagnostopoulos is a Gastroenterologist who sees patients in Marousi at the "Mitera" Clinic. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and completed his Gastroenterology specialty at the 251 General Air Force Hospital. In 2002, he received a scholarship from the Hellenic Society of Gastroenterology and pursued advanced training as an Advanced Endoscopy Research Fellow at the Wolfson Digestive Diseases Centre, University of Nottingham, UK, and the Endoscopy Department, University of Mainz, Germany. His training focused on advanced micro-endoscopic diagnostic and therapeutic techniques such as magnifying endoscopy, chromoendoscopy, Narrow Band Imaging, confocal endomicroscopy, autofluorescence endoscopy, endoscopic mucosal resection, and photodynamic therapy for Barrett’s esophagus. A considerable number of his studies have been published in reputable peer-reviewed international medical journals. He has more than 100 presentations at Greek and international conferences and continues to frequently publish articles in the Greek press. It is noteworthy that his primary interests include the monitoring of patients with Barrett’s esophagus and ulcerative colitis, as well as the endoscopic evaluation of patients with precancerous lesions in the gastrointestinal tract (dysplasia). Furthermore, he specializes in complex polypectomies of flat polyps (endoscopic mucosal resection), ablation of Barrett’s esophagus epithelium using radiofrequency ablation (HALO), and obesity treatment through the revolutionary endoscopic AspireAssist method.

Το Affidea Νέας Ερυθραίας αποτελεί το ολοκληρωμένο ιατρικό κέντρο της περιοχής, με εξαιρετικά πλούσιο φάσμα ιατρικών ειδικοτήτων. Ξεχωρίζει για τις εξειδικευμένες χειρουργικές υπηρεσίες, την ουρολογία με δυνατότητα κυστεοσκόπησης, τη νεφρολογία και τις προηγμένες αγγειοχειρουργικές παρεμβάσεις - ένας πλήρης ιατρικός προορισμός για κάθε ανάγκη.

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.

Orfanidou Afroditi is a Gastroenterologist - Hepatologist and maintains a private practice in Glyka Nera. She holds a PhD from the Medical School of the University of Ioannina and graduated from the Medical School of the University of Crete. She specialized in Gastroenterology at the University Gastroenterology Clinic of the General Hospital of Athens "Laiko".

She has attended the Clinical Hepatology School of the Hellenic Association for the Study of the Liver, the Educational Seminar on Inflammatory Bowel Diseases of the Hellenic Group for the Study of Inflammatory Bowel Diseases, and the Endoscopy School of the Hellenic Gastroenterological Society. She maintains an active scientific presence, participating in Greek and international conferences with oral and written presentations, as well as publications in international scientific journals.

She possesses clinical experience in the diagnosis and management of the entire spectrum of digestive system diseases, with particular interest in inflammatory bowel diseases and diagnostic and therapeutic endoscopy. Additionally, she collaborates with private polyclinics where she performs gastrointestinal endoscopies.

She is a member of the Athens Medical Association, the Hellenic Gastroenterological Society, the Hellenic Group for the Study of Inflammatory Bowel Diseases, and the Professional Association of Gastroenterologists of Greece.

Giorgakis Nikolaos MD, MSc, FEBGH is a Gastroenterologist practicing privately in Rhodes. He is a PhD candidate at the Medical School of Aristotle University of Thessaloniki. He studied at the English-speaking program of the Medical School at Charles University in Prague and received further training in London at Barts and the London School of Medicine and Dentistry, Queen Mary University. Dr. Nikolaos is a member of the Hellenic Society of Gastroenterology and the Hellenic Society for the Study of the Liver, as well as a member of the Specialist Register of the British Medical Council and the European Board of Gastroenterology and Hepatology. His clinic provides diagnosis, monitoring, and treatment of diseases affecting the esophagus, stomach, small and large intestines, as well as the rectum, liver, biliary tract, and pancreas. Diagnostic tests and endoscopic procedures are performed in a specially designed facility equipped with instruments and devices bearing CE marking certificates and employing state-of-the-art technology.

Dr. Pappas Vasileios is a Gastroenterologist - Hepatologist specialized at the General Hospital of Attica Sismanoglio. His clinic is equipped with state-of-the-art endoscopes and a video processor (Full HD) with digital chromoendoscopy capability (for the detection of early lesions of the upper and lower digestive system), as well as modern disinfection and sterilization equipment. The physician provides comprehensive endoscopic examination of the upper and lower gastrointestinal tract (gastroscopy, colonoscopy, rectoscopy), performs polyp removal, endoscopic gastrostomy, esophageal variceal ligation, endoscopic dilations, and investigates gastrointestinal symptoms (dysphagia, odynophagia, dyspeptic discomfort, nausea - vomiting, bloating, abdominal pain, acute and chronic diarrheal syndrome, constipation, fecal incontinence). The clinic also conducts the Hydrogen Breath Test for the diagnosis of intolerance to foods containing lactose, fructose, as well as for the diagnosis of small intestinal bacterial overgrowth. As part of continuous medical education, the physician has participated in numerous national and pan-European conferences.

Smyrnidis Aleksandros is a Gastroenterologist with a private clinic in Keratsini. He graduated from the Medical School of the National and Kapodistrian University of Athens and completed a 9-month fellowship in endoscopic ultrasound (EUS) and wireless capsule endoscopy of the small and large intestine in Edinburgh. Additionally, he undertook a 6-month fellowship in the Second Gastroenterology Clinic of the General Hospital "Evangelismos," specializing in endoscopic ultrasound (EUS). He is a member of the Hellenic Foundation for Gastroenterology & Nutrition, the European Association for the Study of the Liver, and the Hellenic Association for the Study of the Liver. He consistently attends conferences and seminars in Greece and abroad, aiming for excellent training and continuous professional development in his area of expertise.

Το Πολυϊατρείο Affidea Καλλιθέας εξυπηρετεί ασθενείς από το νότιο κέντρο της Αθήνας, με έμφαση στην αξιόπιστη και γρήγορη πρόσβαση σε βασικές ιατρικές ειδικότητες. Ιδανικό για τακτική παρακολούθηση, προληπτικούς ελέγχους και γυναικολογική φροντίδα.

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.

Stoupar Mprana is a Gastroenterologist who maintains a private practice in Cholargos. She is also a Scientific Collaborator of the Gastroenterology Department at Metropolitan General in Cholargos and at the "Olympion" Clinic, General Clinic of Patras. She graduated with honors from the Medical School of the University of Novi Sad, Serbia, and completed her practical training in the Nephrology Department of the University Hospital of Ljubljana, Slovenia, and the Surgical Department of the University Hospital of Bari, Italy. She obtained her specialty in the Gastroenterology Department of the General University Hospital of Patras. During her career, she served as a physician for EKAV (National Emergency Center) and for five years in the emergency department of the National Emergency Help Center of Serbia, including during the bombing period. Due to this prior experience, she has acquired significant expertise in the proper and rapid management of cases across the full spectrum of Internal Medicine, which makes her particularly appreciated by her patients. Finally, she is a member of the Medical Association of Patras and the Medical Association of Athens and regularly attends conferences and seminars aimed at continuous education and training in her field.

Kouloumpis Xaris is a Gastroenterologist and maintains a private practice in Aigaleo. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and has worked at the General Hospital of Athens "Evangelismos." He possesses significant and extensive experience and specializes in hepatology, endoscopic gastroenterology, and digestive oncology. In his private practice, he offers a wide range of services, tailored to the needs of each patient.

Το Πολυϊατρείο Affidea Μεσσήνης φέρνει το επίπεδο μιας μεγάλης πόλης στη Γαστρεντερολογική φροντίδα υγείας στην περιοχή της Μεσσηνίας. Με εξειδικευμένους ιατρούς και σύγχρονο εξοπλισμό, οι κάτοικοι της περιοχής έχουν πλέον πρόσβαση σε ολοκληρωμένες διαγνωστικές υπηρεσίες χωρίς να χρειαστεί να μετακινηθούν στα αστικά κέντρα.

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.