Dugan, who has over 20 years of experience in Michelin star kitchens, is overseeing the art deco hotel’s Italian restaurant Mercante, which launched last year.
He is also responsible for the Smith and Whistle bar, the afternoon tea offering at The Palm Court, and the 303-room hotel's meetings and events catering.
“I look forward to bringing my own style and personality to the restaurants to continue to establish them as some of the best places to eat in Mayfair,” says Dugan.
Dugan began his career as commis chef the five-star Chewton Glen hotel in 1993 and has since worked his way up through the luxury hospitality sector.
He went on to cook for chef Jean-Christophe Novelli at the Michelin-starred Four Seasons Hotel London at Park Lane, before leaving to work in Michelin kitchens across the capital including John Burton-Race at The Landmark Hotel and Richard Corrigan’s Lindsay House.
The chef launched London’s Hotel Cafe Royal in 2012, and has also worked at the two-AA-rosette Four Seasons Hotel Hampshire.
The Sheraton Grand London Park Lane re-launched last year after a multi-million pound refurbishment.