The Musalla is located in the basement of Bingham Hall, Room 012. The room is accessible 24/7 with swipe access and a key. Please email your netID to Chaplain Bajwa for swipe access to Bingham Hall, and please go to Breathing Space (in Welch C) to obtain a key from Gale Iannone.
For those around the Medical Center campus, the best option is to pray in the Chapel at Yale New-Haven Hospital. The hospital Chapel is located to the left of the atrium.