Dr. Rubenstein has served the neonates hospitalized at New York Presbyterian Hospital-Columbia Campus since 1998; prior to that he was a tenured Professor in Pediatrics and Associate Professor in Physiology at Temple University Health Sciences Center and St. Christopher's Hospital for Children. He has served as a Director of the section of neonatal medicine at Temple University and Vice Chair, Department of Pediatrics at St. Christopher's Children's Hospital, as well as Fellowship Training Program Director & Director of the Neonatal Intensive Care Unit at St. Christopher's. His research interests were studying perfluoro chemical liquids as a respiratory medium in preterm lambs. Since arriving at Columbia University he has served as Medical Director for the Neonatal Intensive Care Unit, as Fellowship Program Director and as Vice Chair of the Division of Neonatal Medicine. Since 2016 I am no longer serving as Medical Director of the Neonatal Intensive Care Unit nor as Fellowship Training Program Director.