How many heart surgery facilities in US?

As of my last update, there are over 1,000 hospitals in the United States that perform heart surgeries, including both adult and pediatric cardiothoracic procedures. However, the exact number can vary due to changes in healthcare facilities, mergers, and new certifications. For the most current and specific information, it's advisable to consult resources like the American College of Cardiology or the Society of Thoracic Surgeons.