David Tremblay serves as a CUPE National Trustee, representing Ontario. David is a member of CUPE 1623, representing workers at Health Sciences North in Sudbury. He has worked there since 2002, and currently works as an operating room attendant.
David has been active in his local since 2014, when he became a shop steward. He was elected sectional chair in 2016, and was elected treasurer in September 2020. In April 2021, he was elected vice president for Northern Ontario with the Ontario Council of Hospital Unions (OCHU).