Dr Mulholland is a surgeon, dual-certified in Plastics and ENT—head and neck oncology. He studied at the University of Toronto and completed his residency at Toronto General Hospital. He founded, SpaMedica Cosmetic Plastic Center and Medical Spa in Toronto in 1997, the leading aesthetics and laser centre in Canada, where he has performed over 6000 cosmetic surgical procedures.

A former professional ice hockey player, Dr Mulholland has worked with leading aesthetic technology companies to develop their machinery, including BodyTite RFAL, Fractora and Morpheus8 with InMode.

Dr Mulholland is a member of the Canadian Society of Plastic Surgeons and the American Society of Plastic Surgeons.