Mark Jeffries

Mark Jeffries, Supervisor, Information and Communication Technology/Superviseur, Technologies de l'information et des communications at Niagara Health System, earned a disclosed salary of $117,823.93 in 2025 on the Ontario Sunshine List. This represents a 6.03% increase over the previous year's reported salary. Mark Jeffries has appeared on the Ontario Sunshine List 3 times between 2023 and 2025, with reported earnings peaking at $117,823.93 in 2025. In addition to salary, $548.09 in taxable benefits was disclosed for 2025. Niagara Health System reports under the Hospitals & Boards of Public Health sector of Ontario's public sector salary disclosure.