Prof. Özmen is the president of Endoscopic Laparoscopic Surgeons of Asia(ELSA), founder-president of Turkish Society for Metabolic and Bariatric Surgery (TSMBS); executive board member of Turkish Surgical Society; Congress President for ELSA-2023, Istanbul; Board member of UEMS-Board of Emergency Surgery; was president of Turkish Society for Metabolic and Bariatric Surgery (TSMBS); was Vice-President of Turkish Surgical Society ; was President-elect of Turkish Association of Trauma and Emergency Surgery (TATES); was General Secretary of Accreditation Council of Turkish Surgical Society and Member of the Education & Training Committee of European Association for Endoscopic Surgery (EAES).
Main interests are General Surgery, Bariatric and Metabolic Surgery, Surgical oncology
Prof Özmen is:
-expert in Robotic Surgery using daVinci Xi, X, Si
-Expert in Laparoscopic/Robotic Bariatric and Metabolic Surgery including all primary and re-do procedures
-Expert in surgical oncology dealing with gastric cancer, pancreatic cancer, colorectal cancer, paritoneal carcinomatosis
-Expert in Laparoscopic/Robotic upper and lower gastrointestinal surgery including gastrectomies, colectomies, TME, pancreatectomies
-was performing living and cadaveric Kidney Transplants (since November 2008)
-Qualified Surgical Oncologist (2012)

Professor of Surgery at BAU, Istanbul and Sapienza University, Rome