Gillis holds a Bachelor of Medical Science with an Honours Specialization in Physiology and Pharmacology from Western University. At Great Lakes Eye Centre, he is dedicated to making every patient feel genuinely cared for, bringing kindness and attentiveness to each interaction. He believes that the human side of healthcare is just as important as the clinical side, and he lives that out both at work and beyond. Outside of the clinic, Gillis volunteers with a youth hockey team and spends his free time hiking, reading, and working out.