Inclusion Criteria:  Meets current Diagnostic and Statistical Manual - 5th Edition criteria for moderate to severe opioid use disorder Within 2 weeks of initiating buprenorphine treatment following at least 2 months without treatment Competent to provide written informed consent  Exclusion Criteria:  Evidence of active psychosis or mania Suicidality requiring inpatient hospitalization Active substance use requiring detoxification Cognitive impairment that would interfere with study participation