Outcomes, assessed at 1, 3, and 6 months after hospital discharge, are: (1) intervention effectiveness (cotinine-validated 7-day point-prevalence tobacco abstinence rate at 6 month follow-up [primary outcome] and other tobacco abstinence measures); (2) treatment utilization, and (3) cost-effectiveness (cost per quit). Exploratory analyses will examine the intervention's effect on hospital readmissions and mortality in the 6 months after discharge.