 Tobacco use is the leading preventable cause of death in the United States. Effective treatment for tobacco dependence exists and includes counseling and pharmacotherapy with nicotine replacement, bupropion, or varenicline. The health care system is a key channel for delivering this treatment to smokers. Brief clinical interventions delivered at office visits increase smoking cessation rates, are among the most cost-effective of medical interventions, and are recommended by U.S. Public Health Service. However, physicians and other clinicians often fail to provide them. Clinicians rates of providing tobacco treatment in ambulatory care can be improved, but even when successful, clinicians can only reach smokers who make an office visit. 