Doctors with experience in Gastroesophageal reflux disease (GERD)

Panagiotis Ksiarxos is a Gastroenterologist - Hepatologist with a private practice in Thessaloniki. He is a graduate of the Medical School of Aristotle University of Thessaloniki and has specialized in the Gastroenterology Oncology Department of the Thessaloniki Anti-Cancer Hospital "Theageneio" and in the Gastroenterology Department of the General Hospital of Thessaloniki "Georgios Papanikolaou". He has extensive experience in the management of gastroenterological conditions such as gastroesophageal reflux disease, cholelithiasis, hepatitis B, and hepatitis C, among others, and has performed numerous diagnostic endoscopies including gastroscopies and colonoscopies. In his private practice, equipped with modern facilities, colonoscopies and gastroscopies are performed, while in collaboration with private clinics, advanced procedures such as rectoscopies, rectosigmoidoscopies, endoscopic gastrostomy placements, and polypectomies are also conducted. Finally, the practice offers Helicobacter pylori testing, a primary cause of gastric and peptic ulcers, either through breath tests or antibody testing in the blood.

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.

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.

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).

Fyrmpas Georgios served as Assistant Professor of Otolaryngology at Democritus University of Thrace (DUTH) and undertakes the examination and surgical treatment of children and adults. He has trained and completed further specialization in the United Kingdom for five years and has worked as a specialist Otolaryngologist for a total of 17 years. He was admitted to the Medical School of Aristotle University of Thessaloniki through nationwide exams. He obtained his degree, a postgraduate specialization diploma, and completed his doctoral dissertation at the same university. He was awarded the Diploma of Otolaryngology from the Royal College of Surgeons of England with a specialization in Head & Neck Surgery. His further training includes specialization in Otology/Otologic Surgery (Bradford Royal Infirmary), Rhinology/Rhinosurgery (Derriford Hospital Plymouth NHS Trust), as well as minimally invasive treatment methods for salivary gland diseases (University ENT Clinic of Erlangen, Germany). He has worked as an ENT Consultant in the Oncology ENT Department of Theageneio Anticancer Hospital, at Papageorgiou General Hospital of Thessaloniki, and at Papapolychroniou General Hospital of Thessaloniki. He is the author of international publications and scientific papers, a trainer in hands-on workshops, and a speaker at scientific conferences. He undertakes the surgical management of children with otitis media with effusion, hypertrophic tonsils, snoring, otitis, and has specialized expertise in parotid gland surgery, submandibular gland surgery, laryngeal surgery, rhinoplasty and paranasal sinuses, as well as surgery for cholesteatoma and chronic otitis media. He also performs oncologic excision and reconstruction of skin carcinomas on the face. He maintains his practice in Neapoli, Thessaloniki.

Dr. Παναγιωτόπουλος K. Γεώργιος MD, MSc, ΜΑud/Notol, ΑSCP (VSD), AuD, PhD είναι Ωτορινολαρυγγολόγος με ιδιωτικό ιατρείο στα Βριλήσσια. Αποφοίτησε από την Στρατιωτική Ιατρική (ΣΣΑΣ) λαμβάνοντας το πτυχίο της Ιατρικής από το Αριστοτέλειο Πανεπιστήμιο της Θεσσαλονίκης το 1994. Στη συνέχεια, εκπαιδεύτηκε στην Ειδικότητα της Ωτορινολαρυγγολογίας στο 401 Γενικό Στρατιωτικό Νοσοκομείο Αθηνών και στο Γενικό Νοσοκομείο "Ασκληπιείο" Βούλας, καθώς και στην Παιδιατρική Ωτορινολαρυγγολογία συμμετέχοντας στις δραστηριότητες της ΩΡΛ κλινικής του Γενικού Νοσοκομείου Παίδων Πεντέλης. Έλαβε τον τίτλο του Χειρουργού Ωτορινολαρυγγολόγου (ΩΡΛ) το 2003. Παράλληλα με την ειδίκευσή του, εκπαιδεύτηκε και αποφοίτησε επιτυχώς στην Καταδυτική - Υπερβαρική Ιατρική το 1997 στο Ναυτικό Νοσοκομείο Αθηνών με έμφαση στα Ω.Ρ.Λ. προβλήματα των καταδύσεων και τις Ω.Ρ.Λ. εφαρμογές της υπερβαρικής οξυγονοθεραπείας αποκτώντας παράλληλα Πτυχίο Αυτοδύτου από την Μονάδα Υποβρυχίων Καταστροφών του Πολεμικού Ναυτικού. Εκπαιδεύτηκε στην Αεροπορική Ιατρική το 2005 αποφοιτώντας επιτυχώς από το Κέντρο Αεροπορικής Ιατρικής με έμφαση στα Ω.Ρ.Λ. προβλήματα που εμφανίζονται στο περιβάλλον των πτήσεων. Από το 2004 είναι Επιμελητής της ΩΡΛ Κλινικής του 401 Γενικού Στρατιωτικού Νοσοκομείου Αθηνών και υπεύθυνος ιατρείου διαταραχών όσφρησης και γεύσης του αντίστοιχου τομέα της Κλινικής, ενώ από το 2010 είναι Διευθυντής του Ακοολογικού Νευροωτολογικού Εργαστηρίου του ίδιου Νοσοκομείου και από το 2013 είναι Αναπληρωτής Διευθυντής της ΩΡΛ Κλινικής αυτού. Από το 2017 είναι Επιστημονικός συνεργάτης και allumnus στο Salus University, Osborne College of Audiology (PA), Pennsylvania Ear Institute U.S.A. Τέλος, έχει δημοσιεύσει επιστημονικές εργασίες σε διεθνή και εγχώρια Ωτορινολαρυγγολογικά περιοδικά και έχει παρουσιάσει ομιλίες σε Ελληνικά και Διεθνή Συνέδρια με θέματα γύρω από την Ωτορινολαρυγγολογία, ενώ κατέχει και δίπλωμα ευρεσιτεχνίας από τον Οργανισμό Βιομηχανικής Ιδιοκτησίας για την αντιμετώπιση των οσφρητικών διαταραχών.

Maxaira Asimina is an Adult and Pediatric Otolaryngologist Surgeon with a private practice in Cholargos. She holds a PhD from the University of Padua, Italy, and graduated from the Medical School of the same university. She trained in General Surgery at the Penteli Children's General Hospital, in Pediatric ENT at the Children's General Hospital "Agia Sophia," and in Adult ENT at the Athens Thoracic Diseases General Hospital "Sotiria." During her training, she focused on ENT disorders of neonates, children, and adults. She worked in the respective audiology departments for the diagnosis and management of hearing loss and vertigo. She also worked at the University ENT Clinic of the Padua Hospital in Italy, emphasizing otologic surgeries and functional endoscopic sinus surgeries (FESS). Concurrently with obtaining her ENT specialty, she attended courses of the Academy of Classical Homeopathic Medicine for four years and earned the corresponding degree. To date, she is a Scientific Collaborator at Iaso Children’s Hospital and the Euroclinic Children’s Hospital and has also served as an ENT Consultant at the General - Pediatric Clinic "Mitera." Additionally, she has presented papers and participated in national and international conferences, as well as authored articles in scientific journals.

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.

Mosxovis Dimitris is a Gastroenterologist and a Doctor of Medicine from the Medical School of Athens, with a private practice in Aigaleo. Concurrently, he serves as a Scientific Collaborator at the Medical Athens Clinic Peristeri. He studied at the Medical School of the University of Brescia in Italy and subsequently completed postgraduate studies at the Medical School of the University of Athens. He specialized at the 2nd Oncology Internal Medicine Clinic of the Specialized Anti-Cancer Hospital of Piraeus "Metaxa" and later at the Gastroenterology Clinic of the General State Hospital of Nikaia, where he also served as a Gastroenterology Consultant. He has been a Scientific Collaborator at the 2nd Oncology Clinic of the "Hygeia" Hospital, as well as at Pathology and Nephrology Clinics of the "Medical Athens" group. He has participated in numerous conferences in Greece and abroad, with many presentations to his credit. Additionally, he has an extensive number of publications in Greek and foreign journals. Finally, he has active involvement, to date, as a researcher in numerous international multicenter clinical studies.

Dr. Lazaros Lazarou is a General Surgeon, certified in surgical oncology of the colon and rectum, pancreas, stomach, liver, and thyroid gland, as well as in proctology, with specialized expertise in laparoscopic and robotic surgical procedures. He maintains a private medical practice in Volos, Greece. He studied and specialized in Germany, where he pursued a career in Surgery. He completed his residency at the Department of General, Visceral and Transplant Surgery of the University Hospital of Ulm, where in 2007 he obtained his Board Certification in General Surgery and was appointed Consultant Surgeon, while in 2010 he acquired the qualification in Advanced Visceral Surgery. In 2013, he was promoted to Deputy Director, and in 2015 to Associate Director of Surgery, with parallel responsibilities for the development of the 14 Centers of Excellence of the surgical department, including all oncological centers, as well as centers for inflammatory bowel disease, thyroid and parathyroid glands, hernia, and sarcoma. In 2017, he assumed the position of Director of General, Visceral, Thoracic and Transplant Surgery at the Stuttgart Hospital, which is a certified Oncology Cancer Center of the German Cancer Society (DKG) and a Transplant Center with 23 Centers of Excellence. At the same hospital, he also served as Scientific Coordinator and Medical Director, with responsibilities including: coordination of the Visceral Oncology Center (esophagus, stomach, pancreas, liver, colon and rectum, endocrine glands, peritoneal and other metastases, sarcoma), director of the Oncological–Visceral Tumor Board, delegate for the education of medical students at the Center for Surgical Medicine, transfusion officer of the department, coordinator of the research programs of the Visceral Oncology Center, officer responsible for quality assurance of the Department of General, Visceral, Thoracic and Transplant Surgery, as well as member of the committee of the German Cancer Society responsible for the certification of Centers of Excellence in Visceral and Oncological Medicine. Mr. Lazaros Lazarou returned to Greece with his family, aiming to offer his extensive surgical experience and scientific expertise acquired at leading German and European certified centers where he worked. His commitment focuses on personalized treatment based on Greek and international protocols, access to minimally invasive surgery, optimal surgical outcomes, absolute transparency and trust, as well as continuous education and innovation. Following a competitive selection process, he assumed the position of Coordinating Director of Surgery at the Volos Hospital, while simultaneously providing his services at his private practice and in private hospitals. His clinic focuses on minimally invasive surgical techniques (laparoscopic and robotic surgery) and specialized oncological surgery. Particular emphasis is placed on colorectal cancer, pancreatic cancer, as well as the surgical treatment of endocrine glands and proctology. Dr. Lazaros Lazarou is a member of distinguished German and Greek medical societies that play a leading role in his specialty and actively participates in their conferences and scientific activities. He has contributed to the authorship of studies published in prestigious international scientific journals and has delivered numerous lectures and presentations at international conferences.

Avramidis Vasilis is an Otolaryngologist and maintains a private practice in Kolonaki. He holds a PhD from the Medical School of Democritus University of Thrace and is the Director of the Otolaryngology Clinic at the Athens Medical Center. He has also been an Associate at the "Mitera" Hospital and the Euroclinic Athens. He possesses a postgraduate degree in Oncology from the Piraeus Anti-Cancer Hospital "Metaxa." Practicing medicine since 1986, he has performed a large number of surgical procedures with absolute success. He is specialized in laryngology, pediatric otolaryngology, as well as head and neck surgery. Finally, at his clinic, always guided by his dedication to patient care, he provides treatment for a wide range of conditions.

Panagiotis Mallis is an Otolaryngologist with a private practice in Sepolia. He holds a medical degree from the University of Ancona in Italy. He specialized in General Surgery at the Naval Hospital of Athens and subsequently specialized in Otolaryngology at the General Hospital of Athens Laiko. He also served as a Medical Officer - Reserve Ensign both at the Naval Academy and on a gunboat of the Hellenic Navy. In recent years, he has collaborated with and performed surgical procedures at the Athens Clinic, KAPPA Clinic, and Doctors Hospital. He has particular expertise in the evaluation of snoring and sleep disorders in children and adults, manages septal and snoring conditions, and provides services including endoscopic examination, ear cleaning, comprehensive audiological assessment, nasal septum examination, and tympanometry. He has participated in numerous conferences in Greece and abroad and has published articles in scientific journals. Finally, Dr. Mallis is a member of the Hellenic Society of Otolaryngology, Head and Neck Surgery, the Hellenic Medical Audiology Neurootology Society, the Hellenic Society of Otolaryngologic Allergy, Immunology and Sleep Disorders, and the Hellenic Rhinologic Society.

O Αθανάσιος Ξάκης γεννήθηκε στον Πολύγυρο Χαλκιδικής στις 22 Ιανουαρίου του 1994. Φοίτησε με αθλητική και ακολούθως μαθητική υποτροφία στο λύκειο των Εκπαιδευτηρίων Μαντουλίδη από όπου και τελικώς αποφοίτησε με άριστα το 2011. Κατά τη διάρκεια της μαθητικής του πορείας έλαβε αποδοχές και υποτροφίες για φοίτηση σε διακεκριμένα πανεπιστήμια των Ηνωμένων Πολιτειών της Αμερικής και του Ηνωμένου Βασιλείου. 

Σπούδασε Ιατρική στο Πανεπιστήμιο Ιωαννίνων. Κατά τη διάρκεια των σπουδών του υπήρξε μέλος του Εργαστηρίου Ανατομίας, υπεύθυνος για την εκπαίδευση και την ένταξη νέων φοιτητών ιατρικής καθώς επίσης συμμετείχε σε πληθώρα σεμιναρίων και παρουσιάσεων σε διεθνή συνέδρια. 

Μετά το πέρας των σπουδών του πραγματοποίησε Κλινική Άσκηση στη Χειρουργική στο Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada στην Yogyakarta της Ινδονησίας καθώς επίσης και Κλινική Άσκηση στην Αγγειοχειρουργική στο University Medical Centre Utrecht στην Ουτρέχτη της Ολλανδίας. 

Εργάστηκε ως ειδικευόμενος Χειρουργικής στο Γενικό Νοσοκομείο Σερρών για 2 έτη και στη συνέχεια στο Γενικό Νοσοκομείο Θεσσαλονίκης Γ. Παπαγεωργίου για 4 έτη, από όπου και έλαβε τον τίτλο ειδικότητας. Κατά τη διάρκεια της ειδικότητας του συμμετείχε και σε πληθώρα χειρουργείων ως βοηθός χειρουργός του Τμήματος Χειρουργικής Ήπατος Χοληφόρων-Παγκρέατος της Κλινικής Άγιος Λουκάς, στο Πανόραμα Θεσσαλονίκης. 

Μετά την ολοκλήρωση της ειδικότητας μετεκπαιδεύτηκε στη Χειρουργική Ήπατος, Χοληφόρων, Παγκρέατος & Μεταμοσχεύσεων Ήπατος στο Organ Transplantation Center, China Medical University Hospital στην Taichung της Ταϊβάν. 

Από τον Αύγουστο του 2025 εργάζεται ως Επιμελητής Χειρουργός στο Γενικό Νοσοκομείο Θεσσαλονίκης Γ. Παπανικολάου ενώ παράλληλα αποτελεί Συνεργάτη Χειρουργό της Κλινικής Άγιος Λουκάς. 

Είναι μέλος του Ιατρικού Συλλόγου Θεσσαλονίκης (ΙΣΘ), της European Association for Endoscopic Surgery and other Interventional Techniques (EAES) και της Ελληνικής Εταιρείας Τραύματος και Επείγουσας Χειρουργικής (ΕΕΤ&ΕΧ), ενώ υπήρξε και μέλος Οργανωτικών Επιτροπών μεγάλου αριθμού τοπικών και διεθνών Συνεδρίων και Ημερίδων. 

Είναι κάτοχος του Μεταπτυχιακού Διπλώματος Ειδίκευσης στη Χειρουργική Ογκολογία του Πεπτικού Συστήματος του Αριστοτελείου Πανεπιστήμιου Θεσσαλονίκης και του Μεταπτυχιακού Διπλώματος Ειδίκευσης στον Καρκίνο του Παγκρέατος του Πανεπιστημίου Θεσσαλίας.

Έχει παρακολουθήσει πληθώρα σεμιναρίων και συνεδρίων τόσο διεθνών όσο και του εξωτερικού, έχει παρουσιάσει ως ομιλητής σημαντικό αριθμό προφορικών ανακοινώσεων με αντίστοιχες τιμητικές διακρίσεις και βραβεία ενώ έχει συμμετάσχει και στη δημοσίευση επιστημονικών άρθρων σε διακεκριμένα περιοδικά του εξωτερικού.

Ioanna Papadopoulou is a General Surgeon and maintains private practices in Cholargos and Glyfada. She performs exclusively laparoscopic surgery for benign and malignant conditions of the upper and lower gastrointestinal tract, gallbladder and bile ducts, as well as all types of abdominal wall hernias. She received her Medical Degree from the “Gr. T. Popa” University of Medicine and Pharmacy in Iasi in 2012. She completed her rural service at the General Hospital of Messinia – Kyparissia Nursing Unit in 2013–2014. In 2021, she obtained her surgical specialty certification.

During her specialty training, she served at the 417 Army Fund Nursing Institution (N.I.M.T.S), where she specialized in advanced laparoscopic surgery for malignant colon diseases, obesity, reflux, and hernias, as well as thyroid malignancies. Additionally, at the Sismanogleio General Hospital of Athens, she participated in a large volume of colon and thyroid cancer surgeries. Considering that the present of surgery lies in laparoscopic and robotic techniques, she attended advanced laparoscopic seminars organized by ELPEN under the auspices of the Hellenic Surgical Society from 2016 to 2018.

In 2021, she completed further training in Surgical Oncology, earning a Master of Science (MSc) degree from the National and Kapodistrian University of Athens. Finally, in 2023, she received additional training in the latest methods for managing complex diaphragmatic hernias and reflux at the Symposium on Innovation in Surgery in Malta.