Dean T. Williams is also Consultant Vascular and General Surgeon at Ysbyty Gwynedd Hospital, Bangor. He is the Clinical Lead in the Department of Vascular Surgery and Wound Healing. In addition, he is an Honorary Senior Lecturer at Cardiff University's School of Medicine. His other teaching and examining activities are Undergraduate Organizer and Undergraduate Surgical Tutor at Bangor Hospital, examiner in IMRCS (Royal College of Physicians and Surgeons of Glasgow), examiner for final clinical examinations at Cardiff University School of Medicine, and designated medical supervisor for non-medical prescribers.