Sackler Institute at the New York-Presbyterian Hospital on 68th Street and York Avenue
Take the M31 to the East 69th Street stop, directly in front of New York Presbyterian/Weill Cornell. (The M31 operates north and south on York Avenue, and across town on 57th Street.)
Crosstown buses M30, M66, and M72 allow you to transfer to the M31 at York Avenue.
When you enter the hospital you will have to present a picture ID. Continue straight down the main hall and take a right at the information desk. Follow the signs towards the "H" Baker Pavilion/F Wing elevators, which are on the right side. Take the "H" elevators up to floor 12A (the sign for the “H” elevators is to the left of the bank of elevators).
Take a left off the elevator where you will see a small table and chairs and a sign that says Sackler Institute on your right. Enter through this door and someone will greet you.