Gastroenterologists for Gastroenteritis in Attica

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.

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).

Maria-Theodora Koutroumpi, MD, MSc, is a Gastroenterologist – Interventional Endoscopist with a private practice in Patima, Halandri. She is an affiliated Consultant at the 2nd Gastroenterology Clinic of YGEIA Hospital. Additionally, she performs endoscopies at Affidea Kifisia (contracted with EOPYY) and the private REA clinic. She has significant clinical and endoscopic experience, having performed over 1,600 endoscopies during her specialty training at the General Hospital of Athens "Georgios Gennimatas," and she has also worked as a resident Physician at the General Hospital of Nafplio. She graduated from the Medical School of the University of Patras and holds an MSc from the National and Kapodistrian University of Athens in Human Neoplastic Disease. She participates in international conferences and has been trained in modern endoscopic techniques, such as gastric capsule endoscopy. She has a particular interest in idiopathic inflammatory bowel diseases and interventional endoscopy, emphasizing a personalized and humane approach to each patient.

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.

Iatrokosmos is a comprehensive primary healthcare unit located in the Ampelokipoi area. It consists of the Iatrokosmos Gastroenterology Department, which is staffed by highly trained scientific personnel and equipped with state-of-the-art medical technology. The center's purpose is to provide the solution that each patient desires, namely diagnosis and treatment, in a cost-effective, reliable manner with only the necessary examinations. The goal is to meet the health needs of every family, insured or uninsured, of any age, with comprehensive solutions. Their philosophy includes three fundamental principles: friendly service – high-quality examinations – affordable prices. Finally, always prioritizing patient safety, they take responsibility for the patient’s health from start to finish, meaning from diagnosis through to treatment.

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.

Siannis Dimitrios is a Gastroenterologist who maintains a private practice in Gerakas. He is specialized in hepatology and endoscopic gastroenterology, with particular expertise in therapeutic and interventional endoscopic techniques (gastric and colon polypectomies). He completed his Gastroenterology training at the 1st IKA Hospital and the General Hospital of Attica Sismanoglio. The physician is a member of the Hellenic Gastroenterological Society and the Professional Association of Gastroenterologists. In his private practice, he manages conditions across the entire spectrum of gastroenterology and provides specialized services tailored to the needs of his patients.

Gastroenterologist – Hepatologist M.D.

I am Alexandros Spyrantis, Gastroenterologist and Hepatologist M.D., with a private practice in Ilioupoli, Athens. I am also a Gastroenterologist Associate at the 1st Department of Gastroenterology and Interventional Endoscopy at IASO General Clinic.

I graduated from the Faculty of Medicine at the University of Latvia in Riga and subsequently completed my specialist training in Gastroenterology and Hepatology in Greece. My specialist training included the Hepato-Gastroenterology Department of G.O.N.K. “Agioi Anargyroi”, as well as clinical training at the Gastroenterology Department of General Hospital of Nikaia “Agios Panteleimon”. Prior to specialising in Gastroenterology, I trained in Internal Medicine, gaining broad clinical experience in the overall assessment and management of patients.

Gastrointestinal endoscopy is a particular area of professional interest. I have completed the Hellenic Gastroenterology Society’s Endoscopy School and have participated in hands-on training in invasive endoscopic techniques. I also regularly participate in scientific conferences and educational programmes in Greece and abroad, with a focus on Gastroenterology, Hepatology and Endoscopy.

In my clinical practice, I assess and manage a wide range of gastrointestinal and liver conditions, including gastroesophageal reflux disease, indigestion, gastritis, Helicobacter pylori infection, peptic ulcer disease, abdominal pain, bloating, irritable bowel syndrome, constipation, diarrhoea and changes in bowel habits. I also evaluate gastrointestinal bleeding, colorectal polyps, diverticular disease and inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis, as well as liver and biliary disorders.

I place particular emphasis on careful history-taking and a structured diagnostic approach. I believe that patients should clearly understand what may be causing their symptoms, why a particular investigation is recommended and what the next steps should be.

For this reason, I aim to give each patient sufficient time to discuss their symptoms, concerns and expectations. I explain the diagnosis and available treatment options in clear and understandable terms, while tailoring the medical approach to each individual patient.

My approach combines current medical knowledge with personalised care. I believe that effective medical care should take into account not only the clinical findings and scientific evidence, but also the individual needs and circumstances of each patient.

Alongside my clinical work, I maintain an active interest in medical research and continuing professional education. I have participated in scientific studies, presentations and posters at Greek and international conferences, with topics including inflammatory bowel disease, hepatology, gastrointestinal endoscopy and a range of gastrointestinal conditions.

My aim is to provide patients with medical care that combines scientific expertise, careful diagnostic assessment, up-to-date knowledge and clear, compassionate communication.

For me, good medical care does not end with establishing a diagnosis. It also means providing clear information, an appropriate management plan and building a relationship of trust between doctor and patient.

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.

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.

Ο Ζαχαριάδης Δημήτριος είναι Γαστρεντερολόγος με ιδιωτικό ιατρείο στη Γλυφάδα. Διαθέτει διδακτορική διατριβή στην ηπατίτιδα και είναι εξειδικευμένος στην ηπατολογία, στις φλεγμονώδεις νόσους εντέρου, στην ενδοσκοπική γαστρεντερολογία, στην ογκολογία πεπτικού και στη γαστροοισοφαγική παλινδρόμηση και διαθέτει τεράστια εμπειρία στις ενδοσκοπήσεις. Έχει ειδικευθεί στη Γαστρεντερολογία στο Νοσηλευτικό Ίδρυμα Μετοχικού Ταμείου Στρατού (ΝΙΜΤΣ), αλλά και στο Cornell University της Νέας Υόρκης. Ο γιατρός διατελεί Διευθυντής στο Mediterraneo Hospital. Στο ιδιωτικό του ιατρείο παρέχει εξειδικευμένες υπηρεσίες και αντιμετωπίζει παθήσεις πάνω σε όλο το φάσμα της γαστρεντερολογίας, όπως αίμα στα κόπρανα, απώλεια βάρους, καρκίνο ήπατος και καούρα.

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.

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.

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.

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.

Karatzas Pantelis is a Gastroenterologist who maintains a private practice in the Ampelokipoi area. He completed his doctoral dissertation at the National and Kapodistrian University of Athens and holds a Medical degree from the same university. He received advanced training in Gastrointestinal Endoscopy at the University of Hamburg, Germany, and specialized in Gastroenterology at "Evangelismos" Hospital and in General Pathology at the General Hospital of Chalkida. He is a university fellow at the University Gastroenterology Clinic of the General Hospital of Athens "Laiko" and has served as a scientific collaborator at the University Hepatogastroenterology-Endoscopy Unit of the University General Hospital “Attikon.” Furthermore, he is a member of numerous scientific societies, has attended numerous Greek and international conferences, participated in many specialized seminars, and has publications and written presentations both in Greece and abroad.

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.

Spanou Euaggelia MD is a Gastroenterologist with a private practice in Nea Ionia. She is a graduate and PhD candidate of the Medical School of the National and Kapodistrian University of Athens. She completed a Graduate Program in "Health Unit Management" at the Hellenic Open University and received training in Gastroenterology at the Clinic of Pathophysiology of the General Hospital of Athens "Laiko" and at the Internal Medicine Clinic of the General Hospital of Livadia. She possesses valuable professional experience, having collaborated with numerous clinics and undertaken the teaching of Orthopedics - Traumatology and Pathology courses to students of Vocational Training Institutes. Finally, Dr. Spanou has numerous participations in Greek and international conferences and is a member of the Athens Medical Association, the Hellenic Society of Gastroenterology, and the Hellenic Foundation of Gastroenterology and Nutrition.

Gkaragkanis Dimosthenis is a Gastroenterologist who operates a private practice in Haidari. He holds a medical degree from the Carol Davila University of Medicine and Pharmacy in Romania and specialized in Internal Medicine at the Pathology Clinic of the Regional Hospital of Tripoli, as well as in Gastroenterology at the Gastroenterology Clinic of the General Hospital of Athens "G. Gennimatas." He is an associate physician at the Advanced Interventional Endoscopy Department of the Athens Bioclinic and a Consultant in the Advanced Therapeutic Endoscopy Department of Metropolitan General. He completed rural service at the Neraiodhorio Regional Clinic of the Pylis Health Center and the Stemnitsa Regional Clinic of the Dimitsana Health Center in Arcadia. Finally, the doctor regularly attends numerous conferences and seminars as part of his ongoing professional development.

H Ανδριανάκου Γεωργία MD, MSc είναι Γαστρεντερολόγος – Ηπατολόγος – Επεμβατική Ενδοσκόπος και διατηρεί το ιδιωτικό της ιατρείο στη Νέα Κηφισιά. Παράλληλα είναι συνεργάτης του Γαστρεντερολογικού Τμήματος του Νοσοκομείου Ερρίκος Ντυνάν , όπου διενεργεί όλες τις απαραίτητες ενδοσκοπικές πράξεις : Γαστροσκόπηση με λήψη βιοψιών ,κολονοσκόπηση , πολυποδεκτομή , ορθοσιγμοειδοσκόπηση , τοποθέτηση γαστροστομίας και άλλα. Όλες οι ενδοσκοπικές πράξεις πραγματοποιούνται παρουσία Αναισθησιολόγου και εξειδικευμένου νοσηλευτικού προσωπικού , για την ασφάλεια του ασθενούς. Η κ. Ανδριανάκου είναι απόφοιτος της Ιατρικής Σχολής του Πανεπιστημίου Πατρών. Από το 2013 έως το 2017 εργάστηκε στο Πανεπιστημιακό Νοσοκομείο της Ντιζόν στη Γαλλία CHU Dijon Bourgogne και έλαβε τον τίτλο της Γενικής Ιατρικής. Το 2015 ολοκλήρωσε επιτυχώς το Μεταπτυχιακό δίπλωμα « Ιδιοπαθείς Φλεγμονώδεις Νόσοι του Εντέρου» του Πανεπιστημίου της Lille και του Πανεπιστημίου Sorbonne - Université Pierre- et-Marie- Curie του Παρισίου. Το 2018 επέστρεψε στην Ελλάδα και ξεκίνησε την ειδίκευσή της στη Γαστρεντερολογία – Ηπατολογία στο Γενικό Νοσοκομείο Αθηνών "Γ. ΓΕΝΝΗΜΑΤΑΣ". Το 2020 ολοκλήρωσε επιτυχώς μετά από γραπτές εξετάσεις την παρακολούθηση του 13 ου Σχολείου Κλινικής Ηπατολογίας, το οποίο διοργανώνεται από την Ελληνική Εταιρία Μελέτης Ήπατος. Επιπρόσθετα, το 2021 παρακολούθησε επιτυχώς το Ενδοσκοπικό Σχολείο, υπό την αιγίδα της Ελληνικής Γαστρεντερολογικής Εταιρείας. Το 2022 έλαβε τον τίτλο της Ιατρικής Ειδικότητας της Γαστρεντερολογίας – Ηπατολογίας. Από το 2022 έως το 2025 συνέχισε να εργάζεται στη Γαστρεντερολογική κλινική του Γενικού Νοσοκομείου Αθηνών "Γ.ΓΕΝΝΗΜΑΤΑΣ". Η ιατρός μέσα από της πολυετή θητεία της στο μεγαλύτερο νοσοκομείο της Αττικής απέκτησε μεγάλη εμπειρία στη διαχείριση ευρέως φάσματος σύνθετων γαστρεντερολογικών και ηπατολογικών περιστατικών. Παράλληλα, επιτέλεσε πολυάριθμες ενδοσκοπικές πράξεις. Έχει συμμετάσχει σε πληθώρα ελληνικών και διεθνών συνεδρίων, παρουσιάζοντας εργασίες και αποτελέσματα ερευνητικών μελετών, παραμένοντας έτσι σε συνεχή ενημέρωση για τις εξελίξεις στον τομέα της. Αποτελεί ενεργό μέλος της Ελληνικής Γαστρεντερολογικής Εταιρείας, της Ελληνικής Εταιρίας Μελέτης Ήπατος και της Ελληνικής Ομάδας Μελέτης των Ιδιοπαθών Φλεγμονωδών Νοσημάτων του Εντέρου. Στο ιατρείο της διαχειρίζεται περιστατικά όπως : γαστροοισοφαγική παλινδρόμηση , διερεύνηση αναιμίας, κοιλιακό άλγος, σύνδρομο ευερέθιστου εντέρου, έλεγχος για ελικοβακτηρίδιο του πυλωρού, λιπώδης διήθηση ήπατος, αυτοάνοσα νοσήματα του ήπατος και του παγκρέατος, ηωσινιφιλική οισαφαγίτιδα , νόσος Crohn και Ελκώδης κολίτιδα, γαστρίτιδα, ηπατίτιδα, κίρρωση του ήπατος, αιμορροΐδες και άλλα. Ταυτόχρονα, προγραμματίζει άμεσα μαζί με τον ασθενή όποια ενδοσκοπική πράξη απαιτείται, μετά από ενδελεχή ενημέρωση.