Wilson A. Quezada, MD

Matthew Lewis MD MPH is a cardiologist who specializes in general cardiology and adult congenital heart disease. He has a clinical interest in complex congenital heart disease and is a co-director of the Adult Single Ventricle Clinic at Columbia University Medical Center and serves as the director of the Adult Congenital Heart Disease Research Program. Dr. Lewis is board certified in Cardiovascular Medicine and Adult Congenital Heart Disease. Dr. Lewis completed his MD and Masters in Public Health from Harvard Medical School. Following, he completed the Harvard combined Internal Medicine and Pediatrics Residency at Brigham and Women’s Hospital and Boston Children’s Hospital where he served as Chief Resident. After residency, Dr. Lewis completed fellowship training at NewYork-Presbyterian Hospital/Columbia University Medical Center where he also served as Chief Fellow prior to completing an Adult Congenital Heart Disease Fellowship. Dr. Lewis has experience with patient care, teaching and research and has received grant funding from the National Institute of Health and Adult Congenital Heart Association as a primary investigator and from the Department of Defense as a co-investigator. He has published extensively in the field of Congenital Heart Disease and has particular research focus on utilizing translational research and genomics to improve the outcomes of patients with single ventricle physiology. Dr. Lewis sees patients at Columbia University Medical Center in Washington Heights, NY

Dr. Prager is Professor of Clinical Medicine, Director of Clinical Ethics and Chairman of the Medical Ethics Committee at Columbia University Medical Center. He spent two years in the Indian health Service practicing general medicine on the Cheyenne River Sioux Indian Reservation in South Dakota after his medical internship. Dr. Prager held clandestine medical clinics in the Soviet Union during a visit to Refuseniks in 1986, and later set up the first U.S. - Soviet medical student exchange program between Columbia P&S and the First Moscow Medical Academy. Dr. Prager has been a pulmonologist for over 35 years. He is heavily involved in teaching pulmonology and medical ethics to medical students, house officers and nurses. His writings on medicine and medical ethics have appeared in medical journals and textbooks as well as on the Op-Ed pages of The New York Times and The Wall Street Journal. Dr. Prager is a regular guest lecturer in Israel for the Ben Gurion University MD Program in International Health and Medicine in collaboration with Columbia University Health Sciences. He has received honors for his teaching, clinical expertise, contributions to organ donation, and medical humanism.

Carlton C. McGregor, MD, is a board-certified physician specializing in internal medicine and pulmonology, affiliated with NewYork-Presbyterian and Columbia University Irving Medical Center. With expertise in conditions such as asthma, chronic obstructive pulmonary disease (COPD), and hypertension, Dr. McGregor is dedicated to providing comprehensive care to his patients. In addition to his clinical practice, Dr. McGregor serves as an associate professor of medicine, contributing to the education and training of future healthcare professionals. His commitment to patient health is further supported by a range of accepted insurance plans, ensuring accessible care for a diverse patient population. Generated from the website