Gastroenterologists in Attica

Grammenos Ioannis is a Gastroenterologist who maintains a private practice in Nea Ionia. Simultaneously, he serves as a Specialist Scientific Collaborator at the Central Clinic of the Athens Medical Center. He graduated with honors from the Medical School of the University of Rome and specialized in Gastroenterology - Hepatology at the 2nd Internal Medicine Clinic of the General Hospital of Athens "Evangelismos." Furthermore, he holds a PhD with a dissertation titled "The absorption of fructose and sorbitol in normolactasic and hypolactasic healthy adults." He also has a notable research portfolio with scientific publications in conferences and scientific journals. Finally, the doctor has participated in numerous medical conferences both in Greece and abroad.

Konstantinos Zampelis is a Gastroenterologist and maintains a private practice in Galatsi, Athens. Concurrently, he is an external collaborator of the 2nd Gastroenterology Department of Interventional Endoscopy at "Errikos Dynan" Hospital, the 1st Gastroenterology Clinic of "IASO General" Hospital, and the "Bioclinic of Athens." He graduated from the Medical School of the State University of Naples, Italy, "Federico II" and obtained his specialty degree in the Gastroenterology Department at "Erythros Stavros" Hospital, where he specialized primarily in Interventional Gastroenterology. He has performed a large number of diagnostic and interventional endoscopies such as polyp removal in the stomach and intestines, hemostasis of hemorrhages, removal of foreign bodies from the digestive tract, variceal banding and sclerotherapy, gastrostomy placement, esophageal and intestinal dilations, use of endoclips, APC, and Gold Probe, as well as a significant number (>300) of ERCP procedures. To date, he has participated in numerous Greek and international conferences with the aim of continuous education and training in his specialized field. He is a member of the Athens Medical Association and a regular member of the Hellenic Gastroenterological Society.

Dr. Stefanos Tingas is a Gastroenterologist – Hepatologist – Interventional Endoscopist. In 2010, he graduated from the Medical School of the distinguished “Tor Vergata” University in Rome. After completing his military service as a military doctor with the 32nd Marine Brigade, he worked as a rural doctor at the Health Center of Sofades in Karditsa, then as a Primary Care Physician at the Vittorakis Polyclinic in Platanias, Chania, and as a sports doctor for the sports medicine company “Actionmed.”He began his specialization in gastroenterology at the 2nd Oncology Clinic of the General Oncology Hospital of Kifisia “Agioi Anargyroi,” where he completed the general internal medicine portion of his training. He then continued his gastroenterology specialization at the General Hospital of Piraeus “Tzaneio,” where he earned the title of Specialist in Gastroenterology and Hepatology.During his specialty training and overall tenure at “Tzaneio” General Hospital, he acquired significant expertise in interventional endoscopy, including techniques such as removal of large polyps, EMR (Endoscopic Mucosal Resection), small bowel investigation with capsule endoscopy, placement of percutaneous endoscopic gastrostomy (PEG), hemostasis of bleeding ulcers, esophageal variceal band ligation, and cauterization of angiodysplasias and other lesions using Argon Plasma Coagulation (APC).Dr. Tingas has also been trained in high-definition endoscopy (Narrow Band Imaging - NBI chromoendoscopy) for the prevention and early diagnosis of early-stage cancer and precancerous conditions of the digestive tract.He has gained extensive experience in managing patients with inflammatory bowel diseases (such as Crohn’s disease and ulcerative colitis), as well as liver diseases, actively participating in the hospital’s hepatology outpatient clinic.Dr. Stefanos Tingas has participated in numerous conferences and seminars and has authored publications in both international and Greek medical journals. He has successfully completed and been certified by the Endoscopy School and the Clinical Hepatology School. He currently works as the Scientific Director of the Gastroenterology and Endoscopy Department at “Affidea” Diagnostic Center in Kallithea and as a collaborating Gastroenterologist at REA Maternity Hospital.

Interventional gastroenterologist Konstantopoulos Panagiotis, after many years of professional experience abroad, has been the scientific director of the Gastroenterological Endoscopic Unit at the Athens Medical Residence since April 2022. During his stay in the Netherlands, he worked as a consultant at ADRZ Goes hospital where he performed over 3,000 endoscopies and had the opportunity to specialize in innovative techniques for the removal of large gastrointestinal polyps (endoscopic mucosal resection, chromoendoscopy) using advanced artificial intelligence devices. He served as a member of the scientific board of Admiraal De Ruyter Ziekenhuis hospital in the Netherlands as well as being responsible for scientific protocols and the endoscopy department, head of the outpatient gastroenterology clinics at Admiraal De Ruyter Ziekenhuis hospital, where he managed a large number of cases with inflammatory bowel disease (Crohn’s disease and ulcerative colitis) as well as numerous patients with gastroesophageal reflux disease – Barrett's esophagus, irritable bowel syndrome, constipation, and hemorrhoids. Following successful examinations at St. Antonius Ziekenhuis University Hospital in Utrecht, he was appointed responsible for screening the Dutch population for colorectal cancer (Bevolkingonderzoek accredited). The physician has participated in numerous conferences in Greece and abroad, is a member of scientific societies in Greece and the Netherlands, has a large number of publications in reputable medical journals in Greece and internationally, and has been a member of the Athens Medical Association since 2001, upon graduation from Medical School.

Kalantzis Ioannis is a Gastroenterologist and Doctor of Medicine at the Medical School of the National and Kapodistrian University of Athens. He serves as a Consultant in the 1st Gastroenterology Clinic of Interventional Endoscopy at IASO Hospital, where he receives patients and performs endoscopic procedures. He graduated from the Medical School of Democritus University of Thrace. He specialized in Internal Medicine at the Pathology-Oncology Clinic of the Unified Anticancer Hospital of Piraeus "Metaxa," managing the full spectrum of pathological and oncological diseases. Subsequently, he completed his Gastroenterology specialty at the General Hospital of Athens "Korgialeneio-Benakeio / Hellenic Red Cross," during which he performed over 3,000 diagnostic and therapeutic endoscopic procedures of the upper and lower gastrointestinal tract and biliary system. He acquired particular expertise in endoscopic polypectomy of the stomach, duodenum, and colon, in endoscopic retrograde cholangiopancreatography (ERCP), in endoscopic gastrostomy placement, as well as in the management and treatment of patients with Inflammatory Bowel Diseases (Crohn's Disease and Ulcerative Colitis). He completed with distinction the Master’s Program (MSc) of the National and Kapodistrian University of Athens titled "Neoplastic Disease in Humans: Diagnosis, Contemporary Therapy, and Research," as well as his Doctoral Thesis (PhD) on "Clinicopathological differences and correlations between cancer of the right and left colon." He has participated in international clinical studies, attended numerous conferences, educational courses, and seminars, and has numerous presentations and publications in Greek and international conferences and journals. Finally, he is a member of the Hellenic Gastroenterology Society and the Hellenic Society for the Study of the Liver.

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.

Tzannetakou Ksanthippi is a Gastroenterologist who maintains a private practice in Kolonaki. She studied at the Medical School of the National and Kapodistrian University of Athens and specialized in Gastroenterology at the General Hospital of Athens “Evangelismos.” Additionally, she is an Attending Physician at the B' Gastroenterology Clinic of Iaso Hospital. Finally, she specializes in Endoscopic Gastroenterology (diagnostic and interventional endoscopy of the upper and lower gastrointestinal tract), anorectal diseases (cauterization of warts, diagnosis and treatment of sexually transmitted diseases), idiopathic inflammatory bowel diseases, and endoscopic treatment of obesity (gastric balloon, gastric Botox).

Sevastopoulos Stauros is a Gastroenterologist with a private practice in Nea Smyrni. He graduated from the Medical School of the University of Thessaly and specialized at the General Hospital of Nikaia - Piraeus "Agios Panteleimon". He holds specialization in endoscopic gastroenterology and hepatology. To date, he is the Head of the Gastroenterology Department at the Medione Clinic in Glyfada and an External Collaborator at the Medical Center of Palaio Faliro. He has participated in numerous interventional endoscopy seminars, as well as international conferences, and has several publications in reputable gastroenterological journals. The practice offers all types of endoscopies (gastroscopy - colonoscopy), investigation of anemia, malabsorption syndrome, constipation, Helicobacter pylori assessment, management of irritable bowel syndrome, and reflux disease. Additionally, preventive screening tests are conducted for high-risk groups.

Dr. Zogas Nikolaos is a Gastroenterologist - Hepatologist with a clinic in Kallithea and an external collaborator of some of the largest private clinics in Athens where he performs endoscopy. He graduated from the University of Udine in Italy. He served as Director at the Department of Pathology and Gastroenterology of the University Hospital in Umeå, Västerbotten, Sweden, where he obtained two specialty titles (recognized by the Greek Authorities): Gastroenterology - Hepatology and Internal Medicine. Additionally, he is a PhD candidate at the University of Umeå, where he also served as a trainer for medical residents and nurses at the Medicinkliniken and holds, among others, certification from the two-year program Grundläggande Forskningsmetodik för läkare. He has many years of experience in monitoring hepatology patients and is particularly specialized in clinical (ulcerative colitis, Crohn's disease, diarrheal syndromes, constipation, celiac disease, Helicobacter pylori, collagenous gastritis, etc.) and interventional gastroenterology with numerous difficult endoscopies, polypectomies, and other interventional procedures. He has specific expertise in interventional procedures such as large polyp polypectomies with EMR, balloon enteroscopy (double or single balloon enteroscopy), esophageal variceal ligation, dilation of gastrointestinal strictures, gastrostomy placement (PEG), and others. He served as a consultant in the Gastroenterology Department of the hospital "Elpis" until the end of 2020.

Anyfantis Nikolaos is a Gastroenterologist who maintains private practices in Kifisia and Cholargos. He is also the Director of the 2nd Gastroenterology Clinic at IASO Hospital and has served as Consultant at the Gastroenterology Clinic of the private hospital "Mitera". He graduated from the Medical School of the National and Kapodistrian University of Athens with honors, ranking second in his class of 2002. Throughout his professional career at "Sismanogleio", "Attikon", and "Laiko" Hospitals, he gained experience in endoscopies of the digestive system and in managing patients with gastroenterological and hepatological diseases, specifically in inflammatory bowel diseases (ulcerative colitis, Crohn’s disease), treatment of condylomas, and colorectal cancer prevention. He specializes in the endoscopic treatment of obesity, which he performs at IASO Hospital using modern methods, namely a) gastric botulinum toxin injections and b) endoscopic placement of a gastric balloon. He worked for two years in a private biotechnology company in the clinical studies sector for the development of new oncological therapies. To date, he has participated in numerous national and pan-European conferences, aiming for excellent training and continuous updates in his field of expertise. Finally, he is a member of the Athens Medical Association and the Hellenic Gastroenterological Society.

Sklavos Panteleimon is a Gastroenterologist with private practices in Nea Erythraia and Oropos. He holds a PhD from the Medical School of the National and Kapodistrian University of Athens and specializes in inflammatory bowel diseases, endoscopic gastroenterology, and gastrointestinal oncology. At his private practices, he offers a wide range of services, always respecting the individual needs of each patient.

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.

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.

Papadokostopoulou Aleksandra is a Gastroenterologist who maintains a private practice in Vyronas. She holds a degree from the Medical School of the National and Kapodistrian University of Athens and a PhD from the Medical School of the University of Crete. She specialized in Internal Medicine at the Hospital of Divine Providence “H Pammakaristos” and at the 1st IKA Hospital of Athens, and subsequently specialized in Gastroenterology at the Anti-Cancer - Oncology Hospital of Athens “Agios Savvas.” She is the scientific head of the Gastroenterology Department of the Paleo Faliro Clinic “REA” and has served as a collaborator in the physiology laboratory of the General Department of Basic Medical Sciences at the School of Health Sciences of the Technological Educational Institute of Athens. Aiming for continuous education and updates, she attends Greek and international seminars on digestive system diseases and has numerous announcements and presentations at Greek and international conferences. Finally, the physician is a member of the Hellenic Gastroenterological Society, the Professional Association of Gastroenterologists of Greece, the Hellenic Foundation of Gastroenterology and Nutrition, the European Board of Gastroenterology and Hepatology, and the Hellenic Anti-Cancer Society.

Ο Δρ. Γιαννακόπουλος Γιώργος είναι Ειδικός Γαστρεντερολόγος-Hπατολόγος-Επεμβατικός Ενδοσκόπος - Παγκρεατολόγος με πολυετή εκπαίδευση και κλινική εμπειρία στη Σουηδία, σε πανεπιστημιακά και ιδιωτικά νοσοκομεία υψηλής εξειδίκευσης, καθώς και διατηρεί ιδιωτικό ιατρείο στο Μαρούσι. Αποφοίτησε από την Ιατρική Σχολή του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών με βαθμό πτυχίου «Άριστα». Μετά την ολοκλήρωση των σπουδών του, συνέχισε την εκπαίδευσή του στη Σουηδία, όπου ειδικεύτηκε στην Εσωτερική Παθολογία στο Νοσοκομείο Danderyds Sjukhus της Στοκχόλμης, αποκτώντας τον τίτλο ειδικότητας το 2014. Στη συνέχεια, πραγματοποίησε την εξειδίκευσή του στη Γαστρεντερολογία στο Karolinska Universitetssjukhuset, ένα από τα κορυφαία πανεπιστημιακά νοσοκομεία της Ευρώπης. Ο τίτλος ειδικότητας Γαστρεντερολογίας του απονεμήθηκε το 2017. Από το 2021 έως σήμερα, εργάζεται ως ειδικός γαστρεντερολόγος στις γαστρεντερολογικές κλινικές Capio και Aleris στη Στοκχόλμη, προσφέροντας υψηλού επιπέδου ιατρικές υπηρεσίες τόσο στον διαγνωστικό όσο και στον θεραπευτικό τομέα. Το κλινικό του έργο καλύπτει ένα ευρύ φάσμα περιστατικών, όπως Διαγνωστική και θεραπευτική ενδοσκόπηση (γαστροσκοπήσεις, κολονοσκοπήσεις, αφαίρεση πολυπόδων), Διαχείριση φλεγμονωδών παθήσεων του εντέρου (Νόσος Crohn, Ελκώδης Κολίτιδα), Αντιμετώπιση λειτουργικών διαταραχών του πεπτικού (δυσπεψία, Σύνδρομο Ευερέθιστου Εντέρου), καθώς και παρακολούθηση και θεραπεία ηπατοπαθειών και παγκρεατικών παθήσεων. Παράλληλα με την κλινική του δραστηριότητα, ο Δρ. Γιαννακόπουλος έχει αναπτύξει ενεργό επιστημονικό και εκπαιδευτικό έργο. Την περίοδο 2018–2019, ανέλαβε τον ρόλο του υπεύθυνου οργάνωσης του Πανσουηδικού Εκπαιδευτικού Προγράμματος για Ειδικευόμενους Γαστρεντερολογίας, συντονίζοντας σεμινάρια, κλινικές ασκήσεις και επιμορφωτικά προγράμματα για νέους γιατρούς σε εθνικό επίπεδο. Επιπλέον, ο ιατρός έχει συμμετάσχει σε πλήθος ιατρικών συνεδρίων, με στόχο τη διαρκή επικαιροποίηση των γνώσεών του και την παρακολούθηση των διεθνών εξελίξεων στη Γαστρεντερολογία. Εφαρμόζει στην καθημερινή του πρακτική τις πλέον σύγχρονες, τεκμηριωμένες θεραπευτικές στρατηγικές, με έμφαση στην εξατομικευμένη προσέγγιση και τον σεβασμό στον ασθενή. Τέλος, η επιστημονική του δραστηριότητα περιλαμβάνει και συγγραφικό έργο σε διεθνή ιατρικά περιοδικά.