Established in 1904, Mercy Hospital of Buffalo is one of the largest and busiest hospitals in the region, serving Buffalo and its surrounding southern communities. Along with a wide range of medical, surgical and maternal/child services, the hospital houses the Catholic Health Heart Center, offering the latest surgical and interventional cardiac procedures, including the area's only minimally invasive robotic heart surgery program. Mercy Hospital is also the area's only Joint Commission-certified Comprehensive Stroke Center. Our freestanding Mercy Ambulatory Care Center in Orchard Park, New York, houses a 24-hour emergency department and a two-bed hospital for emergency patients who require an overnight stay.