The investigators will develop and test the acceptability, feasibility, and preliminary efficacy of a Collaborative Care intervention in which one of two Care Managers delivering both interventions will assist primary care providers (PCPs) by using Motivational Interviewing to communicate computer-based ATHENA-OT (opioid therapy) decision support guidelines to veterans with chronic pain. Specifically, after honing the intervention, the investigators will conduct a pilot randomized controlled trial of Collaborative Care/Motivational Interviewing in 100 veterans (ages 18 and older) with chronic pain in primary care who are prescribed opioid pain medications and exhibit at least one "high-risk" opioid use behavior (e.g. obtaining early opioid refills, etc.). Using ATHENA-OT decision support, PCPs will make guideline-concordant recommendations to all enrolled study patients and initiate a Pain Care Plan. Veterans randomized to Collaborative Care, will have one MI session with their assigned study Care Manager followed by 3 Care Manager-delivered telephone MI/monitoring sessions; patients randomized to the Attention Control arm will have one brief session with their assigned Care Manager, followed by 3 Care Manager-delivered neutral telephone sessions