General surgeons

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.

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.

Mantonakis Eleutherios MD, MSc, PhD is a General Surgeon, Doctor of the Medical School of the National and Kapodistrian University of Athens, Director of the I' Surgical Clinic at Errikos Dynan Hospital, with a private practice in Kolonaki. He has completed postgraduate studies in Liver, Biliary Tract, and Pancreatic Surgery and specialized in General Surgery at the A’ Surgical Clinic of the National and Kapodistrian University of Athens at Laiko Hospital. He received further training in Laparoscopic Surgery and Surgical Oncology at the University Hospitals Beaujon and Georges-Pompidou in Paris. He also underwent advanced training in minimally invasive management of anorectal diseases (Laser LHP, SiLaC, FiLaC) in Germany. He is a member of the International Society for Laser Applications in Proctology. Moreover, he possesses significant research experience, having participated in numerous scientific conferences both as an attendee and as a speaker or with scientific presentations, and he has numerous publications in foreign languages.

Ampntin Ramex Iosif is a General Surgeon maintaining private practices in Elefsina and Pagkrati. He is a graduate and specialist of the Medical School of the National and Kapodistrian University of Athens. Additionally, he has worked as a General Surgeon at the First Aid Station of the Elefsina Health Center. He manages a wide range of cases including: pilonidal cysts, hemorrhoids, condylomas, onychomycosis, scars, foot calluses, and nevi. Finally, he has significant experience and training, specializing in Laparoscopic Surgery, Proctology, and Hernia Surgery.

Ο Γιάλβαλης Δημήτριος MD, MSc είναι Διευθυντής Χειρουργός του Ε' Χειρουργικού Τμήματος της Ευρωκλινικής Αθηνών. Γενικός Χειρουργός με εξειδίκευση στην Χειρουργική Ενδοκρινών και στην Λαπαροσκοπική & Ρομποτική Χειρουργική και κάτοχος τίτλου Μεταπτυχιακού Τίτλου (MSc) στην Ελάχιστα επεμβατική και Ρομποτική Χειρουργική του Πανεπιστημίου Αθηνών. Διατηρεί ιδιωτικό ιατρείο στο Χαλάνδρι και στην Καλαμάτα. Ολοκλήρωσε τις ιατρικές του σπουδές στο Δημοκρίτειο Πανεπιστήμιο Θράκης και ειδικεύθηκε στη Γενική Χειρουργική, τόσο στην Ελλάδα Γενικό Νοσοκομείο Καλαμάτας, 251 Γενικό Νοσοκομείο Αεροπορίας και στην Β΄ Χειρουργική Κλινική του Γενικού Νοσοκομείου Αθηνών "Ο Ευαγγελισμός", όσο και στη Μεγάλη Βρετανία σε αναγνωρισμένες έμμισθες θέσεις από το Royal College of Surgeons of England, σε Leeds και Manchester (NHS Hospitals). Μετεκπαιδεύτηκε στη Λαπαροσκοπική Χειρουργική Άνω Γαστρεντερικού στο St’James University Hospital στο Leeds, εξειδικεύτηκε (ως Senior Clinical Fellow) στην Ενδοκρινική Χειρουργική του King’s College Hospital στο Λονδίνο και ακολούθως μετεκπαιδεύτηκε στο Πανεπιστημιακό Νοσοκομείο της Πίζας στην ελάχιστα επεμβατική ενδοσκοπική θυρεοειδεκτομή / παραθυρεοειδεκτομή (MIVAT MIVAP). Συμμετείχε σε πλήθος μετεκπαιδευτικών σεμιναρίων Λαπαροσκοπικής χειρουργικής και σύγχρονων χειρουργικών τεχνικών, στην συγγραφή επιστημονικών άρθρων, σε παρουσιάσεις και ομιλίες σε ποικίλα ιατρικά συνέδρια, καθώς επίσης είχε ενεργό ρόλο στην εκπαίδευση των ειδικευομένων και φοιτητών ιατρικής. Έχει διατελέσει συνεργάτης Χειρουργός στο Τμήμα Μαστού του Νοσοκομείου Metropolitan, υπηρέτησε ως επικουρικός Επιμελητής Β΄ στην Α΄ Χειρουργική Κλινική του Γενικού Νοσοκομείου Αττικής ΚΑΤ, Επιστημονικός Συνεργάτης Ενδοκρινικής Χειρουργικής, στην Κλινική Γενικής & Λαπαροσκοπικής Χειρουργικής και Χειρουργικής Πεπτικού στο Ιατρικό Κέντρο Αθηνών και Επιστημονικός Συνεργάτης Ενδοκρινικής Χειρουργικής του Metropolitan General. Έχει πολύπλευρη και μακρόχρονη εμπειρία, έχοντας πραγματοποιήσει μεγάλο αριθμό επεμβάσεων όλου του φάσματος της Γενικής, Λαπαροσκοπικής, Ενδοκρινικής και Ογκολογικής χειρουργικής, καθώς και επείγουσας χειρουργικής και χειρουργικής τραύματος.

Zisiadis Dimitris MD, MSc, PhDc, is a General Surgeon and Director of the Surgical Clinic at the Medical Center of Athens - Psychiko, with private practices in Kifisia, Agios Dimitrios, Ilion, and Psychiko. He is a PhD candidate at the Medical School of the National and Kapodistrian University of Athens and holds a master's degree in Bioethics from the Medical School of Democritus University of Thrace. Additionally, it is worth mentioning his specialization in Laparoscopic Surgery from the University of Strasbourg in France, Minimally Invasive surgery for inguinal hernia repair at IRCAD, and training in robot-assisted laparoscopic surgery. He has participated in thousands of surgeries for critically ill patients during his surgical practice in the public sector, as well as numerous advanced surgical reconstructions abroad, with a strong commitment to implementing these techniques in Greece. He has served as a collaborating Surgeon in numerous private centers in Greece, Italy, and the UK (London), participating in a wide range of general, laparoscopic, and robotic surgical procedures. He employs the most modern equipment and state-of-the-art techniques worldwide. He has also been trained in the repair of inguinal hernia, hydrocele, and ventral hernia using double mesh and local anesthesia. Finally, he has actively participated in numerous surgical conferences in Greece and courses organized by the Hellenic Surgical Society.

Dr. Ioannis Zouridakis, MD, MSc, is a General Surgeon and Breast Specialist who has maintained a private practice in Korydallos since 1994 and recently within REA Hospital. He is a Scientific Collaborator and a PhD candidate at the Medical School of the National and Kapodistrian University of Athens. He earned his medical degree in 1986 from the University of Rome “La Sapienza” with a doctoral thesis completed during his studies. He specialized in General Surgery at the General Hospital of Athens "Evangelismos" and further specialized in Laparoscopic Surgery at the University of Montpellier in France. He attended the European Advanced Level Course in Breast Disease Management for Surgeons in Athens and specialized in the treatment of breast diseases at the 6th Oncology Hospital "G. Gennimatas." Subsequently, he specialized in hernia surgery using dual mesh PHS & Prolene 3D Patch at Umberto I Hospital in Italy and also specialized in Minimally Invasive Operating Techniques in Colorectal Surgery. He has worked in numerous hospitals and clinics and has served for many years as the Director of the Surgical Clinic at Metropolitan Hospital. Currently, he works daily as a Surgeon – Laparoscopist – Breast Specialist (Consultant Surgeon) at the General and Maternity Hospital REA, one of the most modern hospitals in Greece. Finally, he has attended and participated in over 100 medical conferences in Greece and abroad.

Mousiolis Dimitris MD, MSc, cPhD is a General Surgeon with a private clinic in Ilion. He graduated from the Medical School of Plovdiv University and obtained his specialty in General Surgery from the General Hospital of Athens "Elpis". He holds a postgraduate diploma in Liver - Biliary - Pancreatic Surgery from the Medical Department of Democritus University of Thrace and a Diploma from the Hellenic School of Mastology. Additionally, he has received specialized training in adult cardiopulmonary resuscitation, bariatric surgery, vascular access, sentinel lymph node biopsy, as well as in Laparoscopic & Robotic General Surgery. He specializes in the modern management of perianal diseases and has received specialized training in the minimally invasive treatment of perianal conditions (hemorrhoids, pilonidal cyst, perianal fistulas, anal fissures, condylomas) using specific surgical lasers (LHP, SiLAC, FiLaC) as well as in the treatment of hemorrhoidal disease with the use of ultrasound. To date, he is a collaborating General Surgeon at the Medical Center of Athens, the Bioclinic of Athens, and the Affidea - Euromedical Group. He has published scientific articles in reputable international medical journals and participates in specialized medical events in Greece and abroad. Finally, the doctor is a member of the Medical Association of Athens, the Hellenic Surgical Society, the Hellenic Scientific Society of Robotic Surgery, the Clinical Robotic Surgery Association, as well as the European Resuscitation Council.

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.

Η Δρ Πετροπούλου Θάλεια είναι ειδική Χειρουργός Παχέος Εντέρου και έχει διεθνή κλινική και ακαδημαϊκή καριέρα μεταξύ Ελλάδας και Ηνωμένου Βασιλείου. Διατηρεί ιδιωτικό ιατρείο στους Αμπελόκηπους. Έχει πραγματοποιήσει χιλιάδες λαπαροσκοπικές και ρομποτικές επεμβάσεις και πρόσφατα έγινε η πρώτη Ελληνίδα χειρουργός που έλαβε την παγκόσμια διάκριση "Master Surgeon in Robotic Surgery" από τον διεθνή οργανισμό SRC (Surgical Review Corporation), αναγνώριση που απονέμεται σε χειρουργούς υψηλής εξειδίκευσης και ποιότητας φροντίδας.

Είναι Διευθύντρια του Κέντρου Ρομποτικής & Ελάχιστα Επεμβατικής Χειρουργικής στην Ευρωκλινική Αθηνών, Πανεπιστημιακή Υπότροφος στο Αρεταίειο Νοσοκομείο, και Διευθύντρια (Consultant) Χειρουργός στο Πανεπιστημιακό Νοσοκομείο του Brighton στο Ηνωμένο Βασίλειο.

Είναι πρωτοπόρος στη ρομποτική και λαπαροσκοπική χειρουργική του παχέος εντέρου (Ελάχιστα Επεμβατική) και είναι η μόνη Ελληνίδα Χειρουργός που είναι πιστοποιημένη από την Ευρωπαϊκή Ακαδημία Ρομποτικής Χειρουργικής του Παχέος Εντέρου (EARCS). Σπούδασε στην Ιατρική Σχολή του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών και αναγορεύτηκε Διδάκτωρ γενικής χειρουργικής από το ίδιο πανεπιστήμιο.

Είναι εκπαιδεύτρια Ρομποτικής Χειρουργικής στο διεθνή φορέα εκπαίδευσης της Intuitive, την Ακαδημία ORSI στο Βέλγιο. Επίσης, είναι μέλος του Βασιλικού Κολλεγίου Χειρουργών του Ηνωμένου Βασιλείου (FRCS) και διαπιστευμένη ενδοσκόπος από την JAG και πιστοποιημένη τόσο για διαγνωστική όσο και για θεραπευτική ενδοσκόπηση (EMR, ESD).

Κατέχει διεθνείς διακρίσεις για πρωτοποριακές και καινοτόμες τεχνικές στη Ρομποτική Χειρουργική.

Το 2022 πραγματοποίησε την πρώτη Ρομποτική Κολεκτομή δια φυσικών οπών- χωρίς τομή στην κοιλιά (NOTES) στην Ευρώπη.

Το κέντρο της είναι το μοναδικό στην Ελλάδα που πραγματοποιεί αυτή την επέμβαση.

Το 2024, πραγματοποίησε πρώτη παγκοσμίως προηγμένη ρομποτική επέμβαση με χρήση τεχνητής νοημοσύνης για real-time πλοήγηση και αναγνώριση εργαλείων και οργάνων.

Συμμετέχει ενεργά ως προσκεκλημένη ομιλήτρια σε διεθνή συνέδρια για τη ρομποτική χειρουργική και τα ERAS πρωτόκολλα, συμβάλλοντας στην εξέλιξη της ρομποτικής χειρουργικής χειρουργικής παγκοσμίως.

Tzatzarakis Emmanouil is a General Surgeon - Endocrine Surgeon, PhD holder from the University of Heidelberg in Germany, and maintains a private practice in Kalamata. In 2008, he was admitted to the Medical School of the National and Kapodistrian University of Athens, from which he graduated in 2014 with an excellent degree (8.8). After graduation, he moved to Germany, where he began his training in the specialty of General Surgery at the University Clinic of Mannheim, completing it in 2021. He continued to work at the same clinic as a Senior Registrar II until 2024, with a special focus on laparoscopic repair of abdominal wall hernias. In 2022, he completed his doctoral dissertation at the University of Heidelberg, earning the title of Doctor (Dr. med.). From 2024 until June 2025, he worked as a Senior Registrar I at the Thyroid and Parathyroid Surgery Center of Marienhaus Klinikum in Mainz, Germany, where he performed approximately 200 thyroid and parathyroid surgeries and participated in over 500 in total. In June 2025, he relocated to his wife’s hometown, Kalamata, together with her and their two children, beginning his professional activity in Greece.

The Surgical Clinic Nisotakis K. & X is located in Rafina and consists of the General Surgeons Dr. Konstantinos Nisotakis MD and Dr. Christos Nisotakis MD. The physicians collaborate with many large private centers and hospitals in Athens. Their surgical clinic provides Advanced and High-Level Surgical Services as well as Investigation, Diagnosis, and Treatment of Complex Surgical Conditions. They manage a wide range of cases within the scope of Surgical Oncology, Laparoscopic Surgery, General Surgery, Breast Procedures, and Minor Interventions.

Spyropoulos Xaralampos is a General Surgeon, PhD holder from the Medical School of the University of Patras, and maintains a private practice in Chalandri. Additionally, he is the Director of the 3rd Surgical Clinic at Metropolitan General and a National Trauma Trainer in Greece and Cyprus, certified by the American College of Surgeons. He graduated from the Medical School of the University of Patras, specialized in General Surgery at the University Hospital of Patras, and further specialized in minimally invasive management of emergency surgical pathologies at the I.R.C.A.D - E.I.T.S. Laparoscopic Surgery Center in Strasbourg, France. Subsequently, he received advanced training in laparoscopic surgery of the upper gastrointestinal system and laparoscopic bariatric surgery at the DRK - Krankenhaus - Clementinenhaus hospital in Hanover, Germany. Moreover, he completed a postgraduate program in Clinical Laboratory Specialties at the University of Patras. Furthermore, he has worked as a General Surgeon at the "Eugenideio" Therapeutic Center, the "Rea" General Clinic, the University Hospital of Patras, and Stepping Hill Hospital in the United Kingdom. Finally, the physician is a member of the Athens Medical Association, the Hellenic Surgical Society, the European Society for Trauma and Emergency Surgery, the Hellenic Society of Gastrointestinal Oncology, the Hellenic Breast Surgery Society, and the Hellenic Society for the Application of Ultrasound in Medicine and Biology.

Georgopoulos Nikolaos is a General Surgeon and maintains private practices in Mavili Square and in Sparta. From 2012 until 2023, he served as Director of the 2nd Surgical Clinic at the Naval Hospital of Athens, and he is currently the Director of the Surgical Clinic at Mediterraneo Hospital. He graduated from the Medical School of Aristotle University of Thessaloniki and completed his specialization in General Surgery in 1996, having trained at the Naval Hospitals of Crete and Athens, as well as at the General Hospital of Athens "Evangelismos," where he received training in trauma, upper and lower gastrointestinal surgery, endocrine gland surgery, bariatric surgery, laparoscopic surgery, and organ transplantation. Overall (including surgeries performed in private clinics), he has operated on over 7,500 patients. In the intervening periods, he completed further training abroad in Belgium, France, Italy, Spain, England, Switzerland, and Brazil. In his latest training in lower rectal cancer, he had the opportunity to successfully perform laparoscopic surgery (including TaTME), preserving the sphincters and anus and avoiding permanent colostomy. He has also been trained in Robotic Surgery. Finally, with over 20 years of experience, he co-organizes Greek and international conferences, keeping up with and contributing to advancements in surgery, laparoscopic surgery, and bariatric surgery.

Dr. Ioannis Dimitriou, MD, PhD, is a General Surgeon, Certified Oncologic Surgeon, Proctologist, and Minimally Invasive Surgeon, maintaining a private practice in Marousi, Greece. He specializes in Robotic Surgery (Da Vinci X- & XI-System ©INTUITIVE) and holds a PhD from the Medical School of Justus Liebig University in Giessen, Germany. Dr. Dimitriou studied at the Medical School of Justus Liebig University in Giessen, where he also successfully completed his doctoral thesis. He specialized in General and Visceral Surgery at the University Hospital Klinikum Krefeld in Germany and subsequently at the University Hospital and Oncology Center Alfried Krupp Krankenhaus Essen. In 2010, he obtained his Surgery specialization, followed by the Visceral Surgery specialization in 2014. He further acquired subspecialties in Oncologic Surgery (2017) and Proctology (2019). In 2012, he was promoted to Senior Consultant (Oberarzt), and in 2018, he became Deputy Director (Stellvertretender Klinikleiter) of the Oncology Center at Alfried Krupp Krankenhaus Essen. In 2019, he assumed the role of Head of the Surgical Department at St. Barbara-Hospital Gladbeck and Sankt Marien-Hospital Buer in Germany—both Certified Oncology Centers (Augustinus Tumor Centrum – ATC) and Certified Hernia Centers (Hernienzentrum) under the German Hernia Society (DHG). In 2023, he was appointed Director of the Surgical Department at the University Hospital Marien-Hospital Marl, a Certified Colorectal Cancer Center (Darmkrebszentrum) accredited by the German Cancer Society (DKG), where he also served as Scientific Director. As a Director, he trained numerous physicians in obtaining specializations and subspecialties in General Surgery, Visceral Surgery, Oncologic Surgery, and Proctology, under authorization from the Medical Association of Westphalia-Lippe (ÄKWL).

Currently, Dr. Dimitriou serves as a Senior Consultant/Chefarzt in Oncologic and Robotic Surgery (Da Vinci X- & XI-System ©INTUITIVE) at St. Barbara-Hospital Gladbeck and Sankt Marien-Hospital Buer in Germany. Having gained extensive surgical experience and scientific expertise at some of the most prestigious German and European certified centers, he decided to return to Greece to offer his knowledge and skills to Greek patients. His clinic focuses on minimally invasive surgical techniques (Laparoscopic and Robotic Surgery) and specialized Oncologic Surgery, with particular emphasis on colorectal (Colorectal Cancer) and pancreatic cancer (Pancreatic Cancer). The Athens Medical Center provides him with state-of-the-art surgical equipment and high-level diagnostic services, ensuring top-quality, patient-centered medical care in accordance with international guidelines. Advanced medical techniques and gentle therapeutic methods ensure the rapid recovery of his patients.