A quick search tells me that "The difference between an interventional cardiologist and a cardiac surgeon is how they perform procedures to improve a patient's heart health. An interventional cardiologist performs catheter-based treatments, and a cardiac surgeon performs open surgeries like coronary artery bypass surgeries. Both professions are more specialized than a general cardiologist, who may order diagnostic tests and perform long-term patient care but does not perform procedures."

Thank you. Very helpful.