Cooley Dickinson’s interim president an Amherst native DAVID BROWN Published: 3/3/2021 8:12:17 PM NORTHAMPTON — Massachusetts General Hospital’s chief of emergency medicine, and a 1981 Amherst Regional High School graduate, will assume the role of interim president and chief executive officer at Cooley Dickinson Health Care on Monday. Dr. David F.M. Brown, a member of Cooley Dickinson’s board of trustees since 2013, takes over for Joanne Marqusee, who is stepping down after seven years at the helm of the Northampton hospital. “I’ve seen the progress this organization made under Joanne Marqusee’s leadership and I’m looking forward to building on her legacy,” Brown said in a statement.