Above and below are views of today's ONE HUNDRED OAKS VANDERBILT HEALTH complex. Here we see the Main Entrance.
Photo from Wikipedia / Eric Ventress

In this snapshot, we see the present-day appearance of The Great Hall. A set of escalators provide access to the Upper -medical clinic- Level at ONE HUNDRED OAKS. The mall's Lower Level is still devoted entirely to retail.
Photo from http://www.healthcaredesignmagazine.com