Dr. Gary Schwartz

David Mason is a General Surgeon and a Thoracic Surgeon in Dallas, Texas. Dr. Mason has been practicing medicine for over 32 years and is rated as a Distinguished provider by MediFind in the treatment of Acute Respiratory Distress Syndrome (ARDS). His top areas of expertise are Pleuropulmonary Blastoma, Lung Cancer, EGFR Positive Lung Cancer, Lung Transplant, and Gastrostomy.

Dr. Leal is a board-certified cardiothoracic surgeon specializing in adult cardiovascular surgery and general thoracic surgery. His professional interests include treatment of complex thoracic aortic disease, coronary revascularization, minimally invasive aortic valve replacement, arrhythmia surgery and cardiovascular circulatory mechanical support (LVAD and ECMO). After finishing his internship and residency in general surgery, Dr. Leal went on to complete additional fellowship training in cardiothoracic surgery, heart transplantation and mechanical support. In addition to his work as a skilled clinician, Dr. Leal has experience as an educator and researcher. He currently serves as an assistant professor in the TCU Burnett School of Medicine in Fort Worth. He enjoys celebrating health successes with his patients and strives to return them to the activities they love. Dr. Leal speaks fluent Spanish. Dr. Leal is rated as an Advanced provider by MediFind in the treatment of Acute Respiratory Distress Syndrome (ARDS). His top areas of expertise are Cardiogenic Shock, Cardiac Tamponade, Cystic Medial Necrosis of Aorta, Heart Bypass Surgery, and Transcatheter Aortic Valve Replacement (TAVR).

Scott Reznik is a General Surgeon and a Thoracic Surgeon in Dallas, Texas. Dr. Reznik is rated as a Distinguished provider by MediFind in the treatment of Acute Respiratory Distress Syndrome (ARDS). His top areas of expertise are Fibrosing Mediastinitis, Hiatal Hernia, Esophageal Perforation, Thymectomy, and Endoscopy.