AUGUSTA — Maine’s Department of Health and Human Services has appointed a new director of MaineCare, the state’s Medicaid health insurance program.

Stefanie Nadeau, the new director, has been serving as acting director of the program since mid-February. She replaces Anthony Marple, who oversaw the $2.6 billion-a-year program for four years until he was fired in January by the new LePage administration.

A graduate of Thomas College, Nadeau has been with the state’s Office of MaineCare Services for seven years. Her experience includes program management, policy, operations and claims management. Nadeau was the director of program management and has been overseeing the move to a new claims management system, among other projects.

“Stefanie has provided strong leadership as the acting director,” said DHHS Commissioner Mary Mayhew in a written announcement. “We are very fortunate to have someone with this level of experience and a working knowledge of Medicaid’s complexities to lead the program.”

A Maine native, Nadeau currently resides in Farmingdale with her husband and two children.