XDx names former Novartis Emeryville chief Peter Maag as president, CEO

Peter Maag.

Peter Maag, the former head of Novartis AG's Emeryville site, was named Monday as the new president and CEO of medical diagnostics company XDx Inc. Maag takes over at Brisbane-based XDx for Laura Brege, who had replaced Pierre Cassigneul only a few months ago but last week was named CEO of diagnostic test developer Nodality Inc. in South San Francisco.