Ali Andre Mencin, MD

With a rare combination of board certification in pediatric gastroenterology and a PhD in nutrition, Dr. Neal LeLeiko is an authority on the role of nutritional therapy as a component of treatment for children and adolescents with IBD and other digestive disorders. Dr. LeLeiko joined NewYork-Presbyterian Morgan Stanley Children's Hospital as Director of the Pediatric Inflammatory Bowel Disease (IBD) Program and as an Attending Physician. He joined the Columbia University faculty in the Division of Pediatric Gastroenterology, Nutrition and Liver Diseases as a Professor of Pediatrics. Dr. LeLeiko comes from The Warren Alpert Medical School of Brown University, where he was Professor of Pediatrics and Director, Division of Pediatric Gastroenterology, Nutrition and Liver Diseases at Hasbro Children’s Hospital. Before that he served as Chief of Pediatric Gastroenterology at The Mount Sinai School of Medicine in New York City for 23 years.

Eli Grunstein, M.D. is the John and De Graaf Woodman Associate Professor of Clinical Otolaryngology—Head & Neck Surgery at the Columbia University College of Physicians and Surgeons and Assistant Attending physician at NewYork-Presbyterian/ Morgan Stanley Children's Hospital. He specializes in general Pediatric Otolaryngology, with specific clinical interest in pediatric throat and airway diseases, hyper nasality, and pediatric sinonasal diseases. Dr. Grunstein received his medical degree from the Albert Einstein College of Medicine. He completed his Otolaryngology—Head and Neck Surgery residency training at Columbia University Medical Center and The Weill Cornell Medical Center in New York, then a fellowship in Pediatric Otolaryngology at Children's Hospital and Regional Medical Center in Seattle, Washington. Dr. Grunstein is a member of the American Academy of Otolaryngology/Head and Neck Surgery and is Board Certified in Otolaryngology. He is author or co-author of a number of journal articles and textbook chapters. His current research project is focused on novel ways to prevent intubation related laryngeal injury.

Dr. Constantinescu has an active clinical practice at Columbia University Medical Center, including care of children with asthma, cystic fibrosis, and technology-dependent conditions (home ventilation by invasive and non-invasive means, mechanically assisted airway clearance, etc.) He participates in the Muscular Dystrophy Clinic at Columbia, for the management of pulmonary complications of neuromuscular disorders. Through the multidisciplinary Motor Neuron Center at Columbia, Dr. Constantinescu is also involved in clinical research in the area of pulmonary function in neuromuscular disease.