Massachusetts Cardiothoracic Surgery expert witnesses draw on experience in Boston’s major academic medical centers, regional heart hospitals, and community surgical programs. Many are board-certified surgeons focused on coronary revascularization, valve repair, thoracic oncology, transplant, and minimally invasive or robotic techniques. They understand local practice patterns, referral networks, and outcomes data. These experts assess surgical indications, perioperative management, complications, standards of care, and long-term cardiothoracic outcomes.