Menelaos Zoulamoglou MD, MSc is a General Surgeon maintaining a private practice in Vrilissia, specializing in modern minimally invasive and oncological surgery. He completed his medical studies at the National and Kapodistrian University of Athens and has undergone extensive postgraduate training through multiple advanced degrees, including surgical oncology and advanced laparoscopic, bariatric, and robotic surgery. Throughout his professional career, he has served at major hospitals in Athens, gaining extensive experience in general and oncological surgery, with years of training in both university and hospital settings, including specialization in surgery. His expertise encompasses a wide range of conditions, such as colorectal surgery, oncologic procedures of the digestive system, as well as liver, pancreas, and breast surgery. His objective is to provide high-quality medical services with an emphasis on patient safety, modern minimally invasive techniques, and individualized surgical care.

Dr. Ioannis Virlos is a General Surgeon who maintains a private practice in Glyfada. He graduated from the Medical School of Alexandroupolis, Democritus University of Thrace, obtaining his medical degree in 1990. In 2000, he earned a Master’s degree in Surgical Sciences (MSc in Surgical Sciences) as well as a Diploma from Imperial College London (Diploma Imperial College), United Kingdom. In 2009, he was awarded a Doctorate (Medical Doctorate) from the University of Manchester, UK.He has been a Fellow of the Royal College of Surgeons of Edinburgh (FRCSEd.) since 1998 and of the Intercollegiate Board in Surgery of the United Kingdom (FRCS (Gen Surg)) since 2008. Since 2011, he has been a Fellow of the European Board of Surgery in the field of Colorectal Surgery (FEBS (Coloproctology)).Dr Ioannis Virlos is a specialized colorectal and bariatric surgeon, also trained in minimally invasive surgery — both laparoscopic and robotic. He has received training not only in Greece but also in the United Kingdom, Australia, and Belgium.After completing his military service in 1992, he trained in General Surgery in hospitals in Athens and the United Kingdom between 1992 and 1999, obtaining his specialty title in General Surgery in 1999. From 2002 to 2012, he served as a surgical consultant in hospitals in the UK, Australia, Belgium, and Greece. Specifically, he worked at the following hospitals in the UK: North Middlesex, Arrowe Park, Derriford, Torbay, Exeter, Cheltenham, and North Bristol, as well as at Sir Charles Gairdner University Hospital in Perth, Australia, and Sotiria Hospital in Athens (as Senior Consultant).During the same period, he received advanced training in laparoscopic colorectal surgery and laparoscopic bariatric surgery at Singleton Hospital in Swansea, UK, and Heilighart Ziekenhuis in Roeselare, Belgium.From 2012 to 2021, he worked as a Consultant Surgeon at the following hospitals in the UK: Ealing Hospital, Homerton University Hospital, John Radcliffe & Churchill Hospitals in Oxford, Royal Hampshire County Hospital, Northampton General Hospital, and University Hospitals of Derby and Burton. He returned to Greece in 2021.Since 2023, Mr. Virlos has been the Director of Surgery at Metropolitan General Hospital in Athens. He also serves as the General Secretary of the Hellenic Society of Coloproctology. Finally, for the period 2025–2028, he will represent Greece at the European Society of Coloproctology.

Demiri Matina is a Oncologist - Pathologist and maintains a private practice within the Metropolitan Hospital in Cholargos. Her clinical focus encompasses all solid tumors, including gastrointestinal tumors and neuroendocrine tumors. She graduated from the Medical School of the National and Kapodistrian University of Athens (NKUA), completed her Pathology specialty in 1987, and Oncology specialization in 2003. She has gained valuable experience working as a Consultant in Pathology-Oncology Clinics at prominent institutions such as Tzaneio General Hospital of Piraeus and the General Anti-Cancer Oncology Hospital of Athens "Agios Savvas." Since 2023, she has been serving as the Director of the 3rd Oncology Clinic at Metropolitan General Cholargos. Additionally, she is an active member of associations and organizations including the Hellenic Society for Neuroendocrine Tumors, where she serves as President, the Hellenic Society of Medical Oncologists (HSPO), the European Society for Medical Oncology (ESMO), the American Society of Clinical Oncology (ASCO), the European Neuroendocrine Tumor Society e.V. (ENETS), and the North American Neuroendocrine Tumor Society (NANETS). Finally, her significant contributions to research programs and publications were recognized in 2023 when she received an honorary distinction as Scientific Director "for her valuable contribution to patients and fellow physicians of the Clinic" at the 11th Panhellenic Congress "New Drugs in Oncology."

Dr. Tsilividis Vasileios is a General Surgeon specializing in Oncological, Laparoscopic, and Bariatric Surgery, with extensive experience in university and private clinics in France and Greece, having performed over 3,500 surgeries.

He maintains private practices in Marousi and Peristeri.

He graduated from the French School of Athens and continued his studies at the Medical School of René Descartes University in Paris. There, he earned his Doctor of Medicine degree and subsequently obtained numerous university diplomas in France, including specializations in gastrointestinal surgery, oncological surgery, and bariatric surgery. He is also a member of the Hellenic Society of Gastrointestinal Oncology.

His professional career began at the University Hospital of Rouen, where he served as a resident, registrar, and later as a hospital physician. Since 2017, he has worked in clinics in France primarily focusing on General, Laparoscopic, Bariatric, and Oncological surgery, utilizing minimally invasive techniques. Currently, he provides his services at the Athens Medical Center in Marousi and Peristeri.

Dr. Tsilividis has participated in numerous scientific conferences and seminars, published papers in international medical journals, and undertaken educational roles at the university level.

He is fluent in French and English.

Kelgiorgi Dionysia MD, MSc is a General Surgeon with a private practice in Chalandri. She holds a Master's Degree in "NEW TECHNOLOGIES IN DIGESTIVE SURGERY – MINIMALLY INVASIVE TECHNIQUES – BARIATRIC SURGERY" from the National and Kapodistrian University of Athens (NKUA). She is currently an instructor in this postgraduate program at the University of Athens. She has received certification in laparoscopic surgery from the internationally renowned IRCAD center of excellence in Minimally Invasive Surgery, Strasbourg. She is also certified in the use of surgical laser from a reference center for perianal diseases in Leipzig, Germany. She specializes in Minimally Invasive Surgery (Laparoscopic and Robotic Surgery, Surgical Laser), as well as surgical oncology. She has served as Consultant Surgeon in the Robotic Surgery and Surgical Oncology Clinic at Metropolitan General Hospital and held the same position for three years at the Euroclinic of Athens. Additionally, she was Consultant Surgeon at the accredited Center of Excellence for Thyroid and Parathyroid Surgery of the Euroclinic Athens. She is a member of Greek and European scientific societies, including the European and Hellenic Society of Endoscopic Surgery, the European and Hellenic Hernia Society, the European Society of Coloproctology, and the Hellenic Surgical Society, participating in their advanced training courses. She has numerous participations in conferences, seminars, and symposia in Greece and abroad and serves as a reviewer for the medical journals Cancer Medicine and Hepatobiliary & Pancreatic Diseases International.

Georgios Bpagias is a General Surgeon, PhD holder from the Medical School of Athens. He completed his medical studies at the Medical School of Athens with "Excellent" marks and undertook his specialty training in Greece and Germany (university clinics of general surgery and transplantation in Hannover and Essen). Concurrently, he completed his doctoral thesis on short bowel syndrome also with "Excellent" marks, while specializing in minimally invasive colorectal surgery at the University of Strasbourg, with an emphasis on modern laparoscopic techniques. Subsequently, he completed specialization in pelvic floor disorder management at the University of Venice.

In his clinical practice, he manages general surgery cases covering a broad spectrum, from minor procedures and routine laparoscopic surgeries to specialized colorectal and pelvic floor surgeries. His primary concern is responsible and evidence-based consultation on all surgical issues, aiming for appropriate guidance and making safe therapeutic decisions.

He maintains active scientific involvement, participating predominantly as a speaker and trainer in international, as well as pan-European and Greek scientific conferences. Additionally, he is the author of numerous scientific publications in international journals indexed in PubMed, reflecting his continuous engagement with scientific documentation and the advancement of surgery.

His philosophy is based on the proper and personalized evaluation of each case, evidence-based decision-making, and the avoidance of unnecessary surgeries when not required. Special emphasis is placed on clear, honest, and understandable communication with the patient, to ensure active participation in the therapeutic process and to foster a sense of safety and trust.

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.

Dr. Konstantinos Xydis, BSc, MD, MSc, PhD, is a Radiation Oncologist with many years of experience in Germany, not only in the treatment of malignant diseases but also in the modern application of Low-Dose Radiation Therapy (LDRT) for benign musculoskeletal disorders.

He collaborates with the HYGEIA Hospital (Athens), IASIS – Gavrilakis General Clinic and Evangelisches Krankenhaus Wesel in Germany.

He completed his specialization at Metaxa Oncology Hospital in Greece and at the University Hospital Essen in Germany.

He has served as Senior Consultant (Attending Physician) and Consultant at the University Hospital Essen in Germany and as Director at Evangelisches Krankenhaus Wesel in Germany.

He has extensive experience in radiation therapy for musculoskeletal conditions such as knee and hip osteoarthritis, heel spur, and elbow epicondylitis (tennis/golf elbow).

Dr. Konstantinos Xydis, BSc, MD, MSc, PhD, ist Facharzt für Strahlentherapie und Radioonkologie mit langjähriger Erfahrung in Deutschland – nicht nur in der Behandlung bösartiger Erkrankungen, sondern auch in der modernen Anwendung der Niedrigdosis-Strahlentherapie (Low-Dose Radiation Therapy – LDRT) bei gutartigen Erkrankungen des Bewegungsapparates.

Er kooperiert mit dem HYGEIA-Krankenhaus (Athen), der IASIS – Allgemeine Klinik Gavrilakis sowie dem Evangelischen Krankenhaus Wesel in Deutschland.

Seine Facharztausbildung absolvierte er im Onkologischen Krankenhaus „Metaxa“ in Griechenland sowie am Universitätsklinikum Essen in Deutschland.

Er war als Oberarzt und Facharzt am Universitätsklinikum Essen tätig sowie als Chefarzt am Evangelischen Krankenhaus Wesel in Deutschland.

Er verfügt über umfangreiche Erfahrung in der Strahlentherapie bei Erkrankungen des Bewegungsapparates wie Knie- und Hüftarthrose, Fersensporn sowie Epicondylitis des Ellenbogens (Tennis- bzw. Golferellenbogen).

Dr. Tsilividis Vasileios is a General Surgeon specializing in Oncological, Laparoscopic, and Bariatric Surgery, with extensive experience in university and private clinics in France and Greece, having completed more than 3,500 surgeries.

He maintains a private practice in Marousi.

He graduated from the French School of Athens and continued his studies at the Medical School of René Descartes University in Paris. There, he earned a Doctorate in Medicine and subsequently obtained numerous university diplomas in France, including specializations in digestive system surgery, oncological surgery, and bariatric surgery. He is also a member of the Hellenic Society of Gastrointestinal Oncology.

His professional career began at the University Hospital of Rouen, where he served as a resident, registrar, and later as a hospital physician. Since 2017, he has worked in clinics in France primarily focusing on General, Laparoscopic, Bariatric, and Oncological surgery using minimally invasive techniques. He currently offers his services at the Athens Medical Center in Marousi.

Dr. Tsilividis has participated in numerous scientific conferences and seminars, has published papers in international medical journals, and has undertaken educational roles at the university level.

He is fluent in French and English.

Panagiotakis Emmanouil MD, PhD is a General Surgeon with a private practice in Marousi. He holds a degree from the Medical School of Aristotle University of Thessaloniki and a doctoral degree from the Department of General, Oncological Surgery and Visceral Surgery at the University of Hannover. He specialized at a major Oncology Center in Bremen, Germany (Klinikum Bremen Mitte - Academic Hospital of the University of Gottingen), and has also obtained subspecialty certification in proctology following examinations in Germany. He has worked as an Attending Physician at Klinikum Bremen Mitte, Gesundheit Nord in Germany, and currently serves as an Attending Physician at Iaso General Clinic. He has extensive experience (2011 to 2023) in the management of oncological patients, patients with chronic inflammatory bowel diseases (Crohn’s disease, ulcerative colitis), patients with proctological conditions, as well as patients with benign conditions (e.g., hernias, gallbladder). Finally, the physician is a member of the European Society of Coloproctology.

Ziozia Vasiliki is a General Surgeon, Senior Registrar of the 1st Surgical Clinic at IASO and maintains a private practice in Nea Irakleio. She holds a degree from the Medical School of the National and Kapodistrian University of Athens and a Master's degree in "Surgical Anatomy" from the Medical School of the National and Kapodistrian University of Athens. Dr. Ziozia has received a scholarship from the Hellenic Surgical Society to obtain her postgraduate degree, as well as a scholarship from the Hellenic Society of Coloproctology for specialization in colorectal and anal surgery at St Thomas’ Hospital in London. She initially specialized in Surgery at the General Hospital of Rethymno and subsequently at the General Hospital of Athens "Evangelismos." During 2022-23, she served as a Senior Clinical Fellow in the Colorectal Department at St Thomas’ Hospital in London. Dr. Ziozia has participated in numerous conferences, seminars, and courses and has authored many publications, as well as oral and poster presentations. Finally, she is a member of the Hellenic Society of Coloproctology.

Dr. Napoleon Xirokostas is a board-certified General Surgeon with subspecialty training in Laparoscopic, Robotic, and Oncologic Surgery. He maintains a private medical office in Rafina, Greece, and also serves as a Consultant Surgeon at the 1st Surgical Department of IASO General Hospital in Athens.

He completed his residency in General Surgery at Evangelismos General Hospital of Athens, the largest tertiary care and trauma center in Greece, where he also held the position of Chief Resident. Over the course of his training, he participated in more than 1,000 surgical procedures, including a wide spectrum of emergency, oncologic, and minimally invasive surgeries.

Dr. Xirokostas holds a Medical Degree (MD) from the Democritus University of Thrace and a Master of Science (MSc) in Advanced Laparoscopic and Bariatric Surgery from the National and Kapodistrian University of Athens.

He completed his mandatory rural medical service at the General Hospital of Kyparissia and previously served in the Greek Army as a General Medicine Doctor, providing medical assessments and basic life support instruction.

He has received extensive training in trauma surgery (DSTC), laparoscopic and robotic techniques, microsurgery, and emergency abdominal procedures. He is certified in ATLS, ALS, and has participated in numerous specialized surgical workshops and cadaveric dissection courses across Europe.

Dr. Xirokostas has an active academic presence, with several peer-reviewed publications and presentations at national and international surgical congresses.

He treats conditions including:

• Laparoscopic surgeries (cholecystectomy, hernias, appendectomy)

• Thyroid and parathyroid surgery

• Oncologic surgery (colorectal, gastric, skin/melanoma, soft tissue)

• Robotic surgery for complex abdominal cases

• Emergency trauma surgery and general surgical consults

His clinical approach is grounded in personalized care, evidence-based practice, and a strong commitment to patient safety and recovery.

Kouzanidis Nikolaos MD, MSc is a General Surgeon with private practices in Nea Ionia and Ampelokipoi. He graduated from the Medical School of the University of Patras and has completed postgraduate studies in minimally invasive surgery, robotic surgery, and telesurgery at the Medical School of the National and Kapodistrian University of Athens. The physician performs laparoscopic cholecystectomies, inguinal hernias, umbilical hernias, and all types of surgical procedures, as well as home-based pressure ulcer debridement. Kouzanidis Nikolaos continuously updates his knowledge in his specialty through active participation in conferences and attendance at seminars. Finally, he is a member of the Medical Association of Athens, the Hellenic Surgical Society, the Hellenic Society of Laparoscopic Surgery & Other Interventional Techniques, as well as the European Association for Endoscopic Surgery.