Find Us Gender Management Service (GeMS) ClinicFind Us Fegan Building, 5th floor The Gender Management Service (GeMS) Clinic is located on the fifth floor of the Fegan Building. Enter the hospital through the Main Entrance and walk up the stairs on your left. At top of the stairs, make a left. Continue past the ATMs (on your left). Follow the hallway to the end and go through the doorway. The Fegan elevators will be on your right. Take the elevator to the fifth floor. Take a right out of the elevator to the reception desk. Copyright © 2008 Children's Hospital Boston