Professor of Plastic and Reconstructive Surgery at the University of Ulsan College of Medicine and Asan Medical Center. He has board certification in Trauma, Hand and Plastic surgery. He is also an adjunct professor to Georgetown University USA and St Paul University Ethiopia.
He received his BS degree from the Yonsei University of College of Medicine and his MS degree in medicine and PhD degree from the Graduate School of Yonsei University. He received his M.B.A. on medical management from University of Southern California at Marshall School of Business.

He is active member is number of professional associations such as American society of plastic surgery, Korean society of Plastic surgery and currently serves as President of Korean society of Reconstructive Microsurgery and President-Elect for WSRM (World society of Reconstructive Microsurgery).
His major work has been research and clinical practice in wound healing, diabetic foot & lower extremity reconstruction, lymphedema and supermicrosurgery. He has performed more than 4500 microsurgery procedures including 800 cases of lymphedema. He is the Editor-in-Chief for Archives of Plastic Surgery and serves on the editorial board for numerous journals including Plastic and Reconstructive surgery, International Wound Journal, Journal of Reconstructive Microsurgery, Journal of Plastic Reconstructive Aesthetic Surgery and more. He has been invited over 80 countries to present his work and travelled as visiting professor for more than 100 institutions. He has over 270 publications in this field of practice with 28 book chapters including the “Neligan Plastic surgery” and coauthored 2 books including “Lower extremity reconstruction”.

He was awarded the “Godina Travelling Fellowship” from the 2015 American Society of Reconstructive Microsurgery, “Al Fred W. Farmer Lectureship” 2016 from the Canadian Society of Plastic and Reconstructive Surgery, “Acta Scandinavia Lectureship” 2018 from the Scandinavian Society of Plastic and Reconstructive Surgery, the “Maliniac Lectureship” 2020 from the American Society of Plastic Surgery and “James Burret Brown award” 2022 from the American Association of Plastic Surgeons.