Dr. Yarbrough is the Chief of Pulmonary and Critical Care at the VHA North Texas Healthcare System in Dallas and Professor of Medicine at the University of Texas Southwestern Medical Center.  He is the national program director for Pulmonary, Critical Care, and Sleep Medicine for the Veterans Administration Central Office. He is chair of the Operations Critical Care Committee, Pulmonary Field Advisory Committee, Sleep Field Advisory Committee, member of the Surgical Advisory Board for Critical Care, and Co-chair of the CIS/ARK (ICU Clinical Information System/Anesthesia Record Keeper) Advisory Board.  He is a member of the Tele-ICU steering committee.