Mencoff received his combined BFA from Tufts University and School of the Museum of Fine Arts, Boston. He has been the recipient of grants and awards including Traveling Fellowships from the School of the Museum of Fine Arts in 2010 and 1983. He has received fellowships in sculpture from the Massachusetts Cultural Council in 2009 and 2005 and a Painting Finalist in 2020. He teaches drawing and sculpture at Tufts University and Massachusetts College of Art and Design and lives/ works in Somerville, Massachusetts.