New York Cardiothoracic Surgery expert witnesses draw on experience from major centers like NewYork-Presbyterian, NYU Langone, and Mount Sinai, treating diverse urban and regional populations. They often specialize in cardiac bypass, valve repair, thoracic oncology, transplant, and minimally invasive procedures. Many hold academic appointments and lead multidisciplinary programs. They evaluate standards of care, surgical decision-making, perioperative management, outcomes, and complication causation.