Gastroenterologists

Kapetanakis Nikolaos MD, PhD is a Gastroenterologist and operates a private Gastroenterology Center in Volos. He holds a PhD from the Medical School of Aristotle University of Thessaloniki, specializing in colorectal cancer, specifically the role of Helicobacter pylori in colorectal carcinogenesis. He completed his residency in Internal Medicine at the General Hospital of Volos and specialized in Gastroenterology at Hippokration Hospital of Thessaloniki, where he also served as a Scientific Collaborator in the Gastroenterology Department of the 2nd Internal Medicine Clinic. Additionally, he has participated in numerous conferences in Greece and abroad, has published articles in several international scientific journals, and is a member of the Hellenic Gastroenterological Society.

Papadaki Konstantina is a Gastroenterologist with a private practice in Glyka Nera. She holds a degree from the Medical School of the University of L'Aquila in Rome, Italy. She specialized in Gastroenterology at the General Oncology Hospital of Kifisia "Agioi Anargyroi" and in Internal Medicine at the General Hospital of Mesologgi. She has completed further training at the 4th School of Clinical Hepatology and a sedation and analgesia seminar organized by the Professional Association of Gastroenterologists of Greece. Currently, in addition to her private practice, Dr. Papadaki is a collaborator at Bioclinic Athens and Hygeia Hospital. Her clinical and research interests focus on idiopathic inflammatory bowel diseases (ulcerative colitis, Crohn’s disease), interventional endoscopy, hepatological diseases, and gastrointestinal oncology. Lastly, she is a member of the Athens Medical Association, the Hellenic Foundation for Gastroenterology and Nutrition, and the Hellenic Gastroenterological Society.

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.

Karatzoglou Ioannis MD, MSc, PhD is a Gastroenterologist with private practices in Evosmos, Kalamaria, Giannitsa, and Charilaou, Thessaloniki. He graduated from the Medical School of Aristotle University of Thessaloniki and specialized in Gastroenterology at the AHEPA University Hospital of Thessaloniki. He further specialized at McMaster University Hospital in Hamilton, Ontario, Canada, and subsequently worked as an assistant consultant at the University Hospital of Alexandroupolis. Additionally, he specialized in interventional endoscopy at Bath Hospital, England, UK, and later moved to Chelsea and Westminster University Hospital in London, where he has since worked as a permanent endoscopist in the state-of-the-art Endoscopy Department, performing numerous interventional endoscopic procedures. He has also completed his doctoral dissertation on inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, with the results of his dissertation expected to be published in the reputable international journal World Journal of Gastroenterology. He holds a postgraduate diploma in health unit management from the Hellenic Open University. Finally, he is a scientific collaborator of the Blue Cross Clinic in Thessaloniki, where he performs his procedures in collaboration with an experienced team of anesthesiologists, ensuring painless endoscopy and the highest possible safety and quality in endoscopic practice.

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.

Tyrmpas Ioannis is a Gastroenterologist-Interventional Endoscopist with private practices in Korydallos and Marousi. He holds a degree and is a PhD candidate at the Medical School of the National and Kapodistrian University of Athens. He has received specialized training in Endoscopic Ultrasound (EUS) and Interventional Endoscopy at the University Hospital "The Royal Infirmary of Edinburgh" in the United Kingdom, where he also worked as a Locum Consultant and holds the "Diploma of the European Board of Gastroenterology and Hepatology." He is the Director of the 1st Gastroenterology Interventional Endoscopy Clinic at IASO and the scientific head of the state-of-the-art endoscopy department at the General Clinic of IASO. Dr. Tyrmpas has numerous oral and poster scientific presentations at international and Greek conferences, as well as publications in international and Greek gastroenterological scientific journals. Finally, he is a member of the Medical Association of Athens and Cyprus, the Hellenic Society of Gastroenterology, the Professional Association of Gastroenterologists of Greece, the British Society of Gastroenterology, the European Society of Gastrointestinal Endoscopy (ESGE), and Euro-EUS.

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.

Ms. Panagiotaki Maria, MD, FEBGH is a Gastroenterologist - Endoscopist at Iatriko (Marousi) and maintains a private practice in Kifisia. She graduated with honors from the German School of Athens, was admitted through national examinations, and obtained her medical degree from the Medical School of the University of Athens. In 2006, she was awarded the specialty title in Gastroenterology and later received the European Diploma in Gastroenterology and Hepatology (FEBGH). She pursued further training as a fellow of the Hellenic Gastroenterological Society at the internationally renowned reference hospital "Klinikum Rechts der Isar, der TUM" (Munich) in endoscopy, advanced endoscopic diagnostic and therapeutic techniques for precancerous and other gastrointestinal diseases, as well as endoscopic ultrasound. She has participated in numerous seminars and conferences both in Greece and abroad, accumulating a significant number of publications, focusing on lifelong education and updating. She has extensive experience from her tenure at the "Sismanogleio" and "Red Cross" Hospitals, as well as fifteen years of activity in the private sector, having successfully managed the full spectrum of gastroenterology. She performs upper and lower gastrointestinal endoscopies at the 3rd endoscopy department of the "Iatriko Athinon" Hospital (Marousi) in collaboration with an excellent anesthesiologist to ensure safe and painless examinations with high diagnostic value. She is a member of the Hellenic Gastroenterological Society and the European Board of Gastroenterology and Hepatology.

Dr. Touloumis Lazaros is a Gastroenterologist with a private practice in Evosmos. He is the former Director of the Gastroenterology and Endoscopy Department at the Central Clinic Euromedica and currently serves as the Head of the 3rd Endoscopy and Gastroenterology Department at Kyanos Stavros of the Euromedica Group, aiming to provide high-quality healthcare services in the fields of modern Gastroenterology, Pulmonology, Neonatology, Vascular Surgery, and Surgery. He founded "Prevention & Treatment," a state-of-the-art diagnostic and therapeutic center composed of experienced and specialized scientists trained in the latest techniques of contemporary Medical Science. Collaborating with specialized clinics in the city, they cover the entire spectrum of modern interventional methods in Gastroenterology, Pulmonology, Neonatology, modern Surgery, and Vascular Surgery. However, the most significant area that makes "Prevention & Treatment" distinctive and a source of pride is Preventive Medicine. The prevention of colorectal and breast cancer represents the challenge of contemporary Medical Science. In collaboration with specialized experts, they offer genetic testing options to their patients.

Mitselos Euaggelos is a Gastroenterologist - Hepatologist and maintains a private clinic in Arta. The doctor specialized in Sweden. In his private practice, he offers a wide range of services, personalized to the needs of each patient.

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.

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).

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.

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. 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.