James Nielsen, MD
Stony Brook Long Island Children’s Hospital
James Nielsen, MD is one of the world’s top experts in cardiac Magnetic Resonance Imaging (MRI). He is clinical associate professor of pediatrics and radiology at Stony Brook University School of Medicine, and chief of pediatric cardiology for Stony Brook Long Island Children’s Hospital. Dr. Nielsen’s innovations in MRI earned him international recognition as an authority on the advanced application of noninvasive imaging technologies in congenital heart disease evaluation. He works with children of all ages and has a particular interest in fetal echocardiography, analyzing high-risk pregnancies to identify and avoid potential complications during delivery. Dr. Nielsen’s abilities make him a perfect match for Stony Brook Children’s Hospital, which is at the forefront of pediatric care on Long Island.