The University Medical Center Groningen, or UMCG (Dutch: Universitair Medisch Centrum Groningen), formerly Groningen University Hospital, is the main hospital of the city of Groningen, Netherlands. The medical center is affiliated with the University of Groningen, and offers supraregional tertiary care to the northern part of the Netherlands. The medical center employs almost 17,000 people and numbers almost 1400 beds. It is located in the center of Groningen. It is also one of the largest centers for transplant surgery in the world. Organ transplant operations of all possible kinds are carried out at the UMCG, including combined transplants of multiple organs in one operation.