Margaret Jarvis, MD, DFASAM, is the Director of the Division of Addiction Medicine in the Neurosciences Institute at Geisinger Health System. She began her work at Geisinger by being the Medical Director for Marworth Treatment center, which she has done from 1999 to the present. She has worked extensively with the American Society of Addiction Medicine, serving on the board of directors (currently as Vice President) and on many committees. She also chairs the Quality Improvement Council and, in that capacity, has overseen the creation of the recent publication, “Appropriate Use of Drug Testing in Clinical Addiction Medicine.”