Inclusion Criteria:  Opioid use disorder Initiating buprenorphine treatment  Exclusion Criteria:  Inability to understand the study protocol or assessment questions Severe medical or psychiatric co-morbidity, including active psychosis, high risk for suicide, or medical contraindications to buprenorphine (e.g., allergy or sensitivity to buprenorphine), Currently (or in the past 30 days) receiving MAT for OUD.