Dr. Sargent is Vice Chairman of the Montana Tobacco Advisory Board and was a leader in the effort to pass Helenas Clean Indoor Air Ordinance in 2002. He was a spokesman for the Montana tobacco control initiative in 2002 and tobacco tax initiative in 2004 . He presented his findings on the reduction in heart attacks associated with Helenas clean indoor air ordinance to the American College of Cardiology Scientific Assembly in April, 2003 and published the final article in the British Medical Journal in April 2004. He has also spoken on Health Effects of Second Hand Smoke, Economic Effects of Clean Indoor Air Ordinances, Cessation Methods, Tobacco use in Pregnancy, Fetal Effects of Tobacco Exposure and Tobacco Use and Mental Illness. In September 2006 the American Cancer Society awarded him their national advocacy award, named for Dr. Ted Marrs, for his work on tobacco control.
Dr. Sargent has been in private practice in Helena, Montana for since 1991 and chairman of Quality Assurance for six of those years. He is married and has three children.