Gastroenterologists

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.

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.

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.

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.

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.

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.

Lazaridis Nikolaos MD MSc PhD is a Gastroenterologist specialized in Interventional Endoscopy and Enteroscopy. He maintains a private practice in the center of Thessaloniki on Agias Sofias Street. He completed his doctoral dissertation at the Aristotle University of Thessaloniki and holds a medical degree from the same university. He specialized in Gastroenterology at the AHEPA University General Hospital of Thessaloniki and subsequently received further training in Interventional Endoscopy, Enteroscopy (capsule endoscopy and interventional enteroscopy), and Transnasal Endoscopy at the Royal Free Hospital in London (under the direction of Dr. Edward J. Despott, Head of the Endoscopy Department). Additionally, he specialized in interventional endoscopy at Jichi University Hospital in Japan. Following this, he remained at the Royal Free Hospital in London, where he has since worked as a permanent endoscopist in the hospital’s Endoscopy Department, performing numerous interventional endoscopic procedures. He completed his doctoral research on Irritable Bowel Syndrome (IBS) and holds a postgraduate degree in Health Units Management from the Hellenic Open University. He has served as a scientific collaborator at the 2nd Propaedeutic University Clinic of Hippocrates Hospital and at the 1st University Clinic of AHEPA Hospital in Thessaloniki. Finally, he is a member of numerous scientific societies, has attended numerous Greek and international conferences, participated in various specialized seminars, and has publications and written presentations both in Greece and abroad.

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."

Drikos Ioannis is a Gastroenterologist who maintains a private practice in Neos Kosmos. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and specialized in Gastroenterology at the Gastroenterology Clinic of the General State Hospital of Athens "G. Gennimatas." Additionally, he holds the European Diploma in Gastroenterology and Hepatology awarded by the Training Committee of the European Board of Gastroenterology and Hepatology of the European Union of Medical Specialists. He possesses extensive clinical experience as a scientific collaborator in numerous hospitals and clinics, as well as with insurance organizations. Finally, he actively participates in a wide range of scientific seminars, conferences, postgraduate courses, educational programs, workshops, and symposiums, both in Greece and abroad, as a trainee, delegate, or speaker.

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).

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.

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.

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.

Matina - Lydia Xatzinikolaou MD, PhD is a Gastroenterologist who sees patients in Cholargos at Metropolitan General Hospital. She graduated from the Athens College and subsequently studied Medicine at Nottingham University in England. She holds a PhD from the National and Kapodistrian University of Athens. She completed further training in Inflammatory Bowel Diseases at the Royal Free Hospital in London, after completing her specialty in Gastroenterology at the Athens Anti-Cancer - Oncology Hospital "Agios Savvas." She works as a Consultant in the Advanced Therapeutic Endoscopy Clinic at Metropolitan General Hospital and is a Scientific Associate of the Gastroenterology Unit at the Athens Chest Diseases Hospital "Sotiria," with her primary specialization in inflammatory bowel diseases. She actively participates in Greek and international conferences and has authored scientific publications. Finally, 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 European Crohn's and Colitis Organisation.

Dr. Zaxou Maria is an External Collaborator at the private hospitals "Lefkos Stavros" and "Mediterraneo" and a PhD candidate at the Medical School of Athens - NKUA, focusing on hydrocolonoscopy and new techniques for the removal of colorectal polyps. She is actively engaged in clinical research and has participated in Greek and international conferences, including the Pan-European UEG 2023, where she was awarded for the COLDWATER study. She is specialized in the management of Irritable Bowel Syndrome (IBS) and is a member of the educational committee of the Rome Foundation. In her private practice, she addresses the full spectrum of Gastroenterology (e.g., Crohn’s disease, ulcerative colitis, Helicobacter pylori infection, GERD, dyspepsia, etc.) and performs gastroscopies and colonoscopies using state-of-the-art equipment, ensuring painless and safe procedures.

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.

Gerakis Ioannis is a Gastroenterologist - Hepatologist with private practices in Thessaloniki and Diavata. He graduated from the Medical School of Ovidius University and has extensive experience in the management of diseases and conditions of the digestive system. He specialized in Internal Medicine at the General Hospital of Giannitsa and in Gastroenterology at the Thessaloniki Anti-Cancer Hospital "Theageneio." To date, he serves as the Scientific Director of the Medical Department at Express Service and collaborates with "Euromedica" General Clinic of Thessaloniki and Bioclinic Thessaloniki. In his private practice, he provides specialized services including gastroscopy, colonoscopy, rectoscopy, biopsy sampling for histological examination, and polyp removal. Finally, the doctor is a member of the Hellenic Association for the Study of the Liver and the Hellenic Gastroenterological Association.