Prior to being elected to the council, he served on the Recreation and Parks Commission and the Beverly Hills Board of Education.
[2] A lifelong Beverly Hills resident, Brien joined the Cedars-Sinai medical team in 1991.
Through his research efforts, he seeks to improve surgical treatment of femur fractures as well as of hip and knee replacements.
He also served as president of the Beverly Hills Little League, as an assistant commissioner for AYSO Region 76, a member of the Southern California chapter of the Arthritis Foundation's board of directors, and is active in the United Jewish Fund.
[5] In August 2010, the Beverly Hills City Council paid tribute to Senator Thomas Kuchel on the 100th anniversary of his birth.