As these pie charts show, a typical medical facilities' electric use is heavily tilted toward lighting (45%) and space conditioning (19%). The miscellaneous other (30%) can be challenging to work with, but might include specialized diagnostic equipment, elevators, refrigeration, TVs and office equipment. Food service (5%) is usually a small electricity consumer but should be checked for obvious opportunities like reducing preheat times and maintaining proper temperature settings on cooking and refrigeration equipment.
Medical facilities that use natural gas may have some potential for savings by evaluating their hot water use since it's typically the largest percentage user of natural gas at 41%. In some cases, the water temperature can be lowered, or if there is recirculating hot water, the recirculating pump hours can be reduced.
At the door, feel for air blowing in or out indicating the building is out of pressure balance. And are the doors sealing well then they close or is there a large gap where they meet? Some changes are low-cost to no-cost, like adding some weatherstripping or adjusting the doors. Others will take professional help to analyze.