Doundoulakis Konstantinos is a Vascular Surgeon - Angiologist with a private practice in Ilisia. He graduated from the Medical School of Health Sciences at the National and Kapodistrian University of Athens, specializing in Vascular Surgery under the Medical Association of North Rhine-Westphalia, Germany. He trained as a General Surgery Surgeon at the General Hospital of Piraeus, Tzaneio, and specialized in General Surgery and Vascular Surgery at Ludmillenstift Krankenhaus Meppen. He has worked as a Vascular Surgeon at the Vascular Surgery Clinic of Elisabeth Krankenhaus Essen, as a consultant in the Second Vascular Surgery Clinic at Uniklinik Magdeburg, and in the First Vascular Surgery Clinic at Klinikum Brandenburg an der Havel. From 2020 to 2024, he served as a Consultant in the First Vascular Surgery Clinic at the "Errikos Dynan" Hospital, where he currently holds the position of Deputy Director. Finally, in his practice, he manages cases across the full spectrum of vascular surgery and angiological conditions, with noted expertise in endovascular vein surgery, nephropathy fistulas, and arterial diseases.