Prof. Justyna Domienik-Karłowicz, MD, PhD, is a physician with many years of experience in the care of people with severe obesity, including bariatric patients. She provides care at every stage of treatment. This includes diagnosis, surgical qualification, postoperative care, and long-term support.
She is a recognized expert in obesity treatment. She trains physicians through training sessions and workshops on current methods. She often speaks at conferences of the Polish Cardiac Society and the Polish Society of Hypertension. She also takes part in meetings for people with obesity. Her work helps improve standards of bariatric care in Poland.
Dr. Sotirios Papathanasiou, MD, PhD, is an interventional cardiologist and arrhythmologist with over 20 years of experience. He is certified in interventional cardiology by EAPCI and the ESC. His expertise includes coronary artery disease, cardiac arrhythmias (including atrial fibrillation), heart failure, valvular disease, and congenital heart disease. He performs coronary angiography, angioplasty, and pacemaker implantation.
Education: Medical degree from the University of Ioannina School of Medicine. PhD from the National and Kapodistrian University of Athens (1999–2005). Postgraduate degree in interventional cardiology from the University of Athens. Training: Hippokrateion Hospital (University Cardiology Department), Alexandra Hospital, Onassis Cardiac Surgery Center, and Attikon Hospital. Affiliations: European Society of Cardiology (ESC), EAPCI, Hellenic Cardiological Society, and Hellenic Society of Lipidology and Atherosclerosis.
Languages: Greek and English.
Dr. Nikolaos Papadopoulos, MD, PhD, is an internist with expertise in hepatology and over 25 years of hospital practice. He is the Director of the Internal Medicine Department at IASYS Clinic. He supervises inpatient care, promotes patient safety, and coordinates comprehensive management, including surgical and other complex cases.
He graduated from the Medical School of the Aristotle University of Thessaloniki (SSAS). He completed his specialty training in Internal Medicine at Sotiria General Hospital and trained in clinical hepatology at Hippokration. He earned a PhD from the National and Kapodistrian University of Athens. He led the 2nd Department of Internal Medicine at the 401 General Military Hospital of Athens (401 GMHA) and has served at both 401 GMHA and NIMTS. He has numerous publications in international journals and is an active conference participant.
Dr. Ruslan Yurievich is a multidisciplinary surgeon at Impuls Medical Center in Kyiv. He provides inpatient and outpatient care across urology, proctology, and vascular surgery. Dr. Yurievich combines surgical treatment with ultrasound diagnostics for precise patient management.
Dr. Cuneyt Kocas is a cardiologist at Biruni University Hospital in Istanbul. He specializes in coronary artery disease, arrhythmias, and hypertension. Dr. Kocas treats heart conditions using both diagnostic and interventional methods. He works at a TEMOS-accredited facility equipped with a hybrid operating room.
Dr. Okay Abaci is a professor of cardiology at Biruni University Hospital in Istanbul. He specializes in heart and leg angiography and peripheral arterial disease. Dr. Abaci holds over 100 domestic and international scientific publications. He completed dedicated training in peripheral arterial intervention in Italy.
Dr. Isil Yurdaisik is a radiologist at Menfis Health Novimaj in Istanbul. She specializes in diagnostic imaging and interventional radiology. Dr. Yurdaisik conducted a study on radiation exposure in COVID-19 patients, focusing on reducing radiation doses during chest CT scans to follow safety guidelines for patient protection.
She treats conditions like fibrocystic breast disease and helps with weight loss procedures, using imaging for gastric balloon placements. She works at a clinic accredited by the Turkish Medical Association and authorized for international health tourism. Dr. Yurdaisik also gives online consultations to patients abroad.
Dr. Raquel Diaz Simon is a specialist at Publio Cordon Memorial Hospital in Madrid. She practices endocrinology and gynecology. Her work includes metabolic syndrome, type 2 diabetes, and hormonal health. Dr. Diaz Simon treats patients at a facility holding Joint Commission International accreditation.
The hospital also holds recognition from the European Society of Human Reproduction and Embryology for reproductive medicine and gynecological care. Dr. Diaz Simon manages conditions ranging from endocrine disorders to obstetric health. She works within a medical network of over 100 specialists.
Dr. Sonia Lon Colvée is a neuroradiologist at Publio Cordón Memorial Hospital in Madrid. She uses imaging for neurology, neurosurgery, and orthopedic conditions. Her diagnostic work includes cerebral artery aneurysms and arteriovenous malformations. She works at a JCI-accredited facility that follows international safety standards.
The hospital is affiliated with the American College of Surgeons. Dr. Lon Colvée provides imaging for brain aneurysm repair and lung cancer staging. She integrates diagnostics with neurosurgical and orthopedic treatment.
Dr. Alexander Krapivsky is a German board-certified internist and cardiologist with more than 20 years of experience in cardiovascular medicine. He trained at I.M. Sechenov University. He worked at University Hospital Essen, Heart Center Duisburg, and Evangelisches Krankenhaus Mülheim. From 2006 to 2015, he led the cardiac catheterization laboratory as a senior cardiologist.
He founded Herzquartier in 2015 and serves as medical director. It is a network of specialized cardiology practices in Düsseldorf, Mülheim an der Ruhr, and Mönchengladbach. His expertise includes prevention and early detection, coronary artery disease, heart failure, arrhythmias, hypertension, lipid disorders, and non‑invasive diagnostics.
Accreditations include DGK Interventional Cardiology, Active Cardiac Rhythm Devices, Heart Failure, and Special Cardiovascular Prevention. He is certified in lipidology (DGFF) and trained in internal intensive care medicine. He has authored and co‑authored research published in the New England Journal of Medicine, Clinical Research in Cardiology, and EuroIntervention.
Prof. Dr. Mustafa Özkan is a cardiologist at Koru Ankara Hospital. His main areas are coronary artery and heart valve diseases, hypertension, and hyperlipidemia.
He graduated from Istanbul University Faculty of Medicine in 1974. He completed specialization in occupational diseases in 1982 and in cardiology in 1991. He became an associate professor in 1993 and a professor in 2007.
He served at GATA, Izmir Air Hospital, Kütahya Air Hospital, and the NATO Hospital in Belgium. He has published many national and international articles. He has treated many patients.