Professor Maciejewski graduated from Medical University of Silesia and underwent general, oncologic and plastic surgery training. Head of the oncological and reconstructive surgery clinic and the leader and founder of the reconstructive team as well as the face and neck transplant team. Four - time ASRM best case winner. In 2020, Prof. Maciejewski had the honor being the American Society for Reconstructive Microsurgery Godina Traveling Fellow in recognition of his accomplishments in the field of reconstructive microsurgery. With his team, he performed the first face transplant in Poland and the first immediate face transplant in the world. He also performed first complex allotransplantation of neck organs in the world.
Prof. Maciejewski has served as visiting professor and guest faculty at numerous national and international congresses and universities (MD Anderson, The Buncke Clinic). He is also the recipient of numerous fellowship and resident teaching awards.