Dr. Papakostas Ioannis MD, MSc, PhD is a Vascular Surgeon - Angiologist and maintains private clinics in Ioannina and Preveza. He holds a PhD from the Medical School of Ioannina, a Master's degree in Endovascular Surgery from the National and Kapodistrian University of Athens and the University of Bicocca/Milano, and a degree from the Medical School of the University of Ioannina with a specialty in vascular surgery. Additionally, he has completed further training in the treatment of venous diseases using endovenous laser and other methods at the Vascular Surgery Clinic of Stony Brook University, New York. The doctor specializes in endovascular vein surgery, telangiectasias, and endovascular arterial surgery. Moreover, he has authored a significant number of foreign-language and Greek scientific papers published in reputable international and Greek medical scientific journals. He has also contributed to the writing of medical books in the field of vascular surgery and serves as a reviewer of scientific papers in this field for international medical journals. Finally, it is noteworthy that he has participated in numerous Greek and international medical conferences and seminars as a speaker, trainer, and member of organizing committees.