Ioannis N. Boletis is a graduate of the National &Kapodistrian University of Athens. Medical School where he also obtained his Ph.D. thesis. He trained in Internal Medicine and Nephrology at “Laiko” General Hospital in Athens, where he was appointed after that as a consultant at the Nephrology Department and Renal Transplantation Unit. For two and a half years he has worked at the Nephrology Department of the Royal Hallamshire Hospital, at the University of Sheffield in the UK. Through a European Union fellowship, he studied renal osteodystrophy, in collaboration with the Department of Human Metabolism and Clinical Biochemistry of the same University. Since 2003 he is the Director of the Nephrology and Renal Transplantation at “Laiko” General Hospital, and as of 2005, he is serving as the Chief Medical Officer of the same hospital. In 2013, he was named Professor of Nephrology at the University of Athens Medical School where he also holds the post of the Director of the Internal Medicine Department for the last two years. He has a continuous educational presence, lecturing in a number of conferences and other events regarding several fields of his specialty. Over the years, he has served as Secretary-General, Vice President and President of the Hellenic Society of Nephrology, the Hellenic Society of Transplantation and the Hellenic Society of Medical Studies. He has been a member and Vice President of the Hellenic Transplantation Organization. For the last year, he is a member and currently a President of the Board of Directors of the Onassis Cardiac Surgery Center. His research work focuses primarily on renal transplantation and clinical nephrology with a particular interest in immunological diseases of the kidney. He participates in international working groups in the field of vasculitides, systemic lupus erythematosus, glomerular diseases, and kidney transplantation. In 2019, he was elected to the Council of the European Society for Organ Transplantation. He is also a reviewer and member of the editorial committee of Greek and International Nephrology journals. He has more than 200 peer-review publications in international medical journals and a large number of papers in Greek and international conferences.