Find Us Lung Transplant ProgramFind Us Hunnewell Building, 2nd floor The Lung Transplant Program is located on the second floor of the Hunnewell Building. Enter the hospital through the Main Entrance and walk up the stairs on your left. At top of the stairs, make a left. Walk down the hallway past the ATMs. On the right you will pass a reception desk. The elevator will be across from the desk on the left, after the first turn in the hallway. Copyright © 2008 Children's Hospital Boston