The goal of medication reconciliation is to prevent adverse events by identifying unintended medication discrepancies during transitions of care. This retrospective cohort evaluated the impact of attending a pharmacist-clinician collaborative (PCC) visit after hospital discharge with their medication containers on risk of 30-day readmission. Among adult patients on at least 10 total medications, findings indicate no significant difference in 30-day hospital readmission risk between patients presenting to a PCC visit with their medication containers compared with patients who did not. However, when patients did present to their PCC visit with medication containers, pharmacists identified more medication discrepancies and resolved more medication-related issues.