She is the current Member of National Assembly of Quebec for the riding of Matapédia in the Gaspésie region.
Doyer studied at the Université du Québec à Rimouski and obtained a bachelor's degree in sociology and a master's degree in regional development.
From 1972 to 1984 she was the co-owner of an agricultural business and was a research agent for several councils and centers in health, social services and human resources.
She was re-elected in 1998 and named the Parliamentary Secretary for the Minister of Regions.
She was later re-elected for new mandates in 2003 and 2007 and served as critic for mines, forest, wildlife and regions.