Background & Significance: • Poor communication and collaboration in Emergency Departments (EDs) have been linked to negative outcomes: • Overcrowding; • Long wait times; • Patients leaving without being seen; • Delays; • Clinical errors. • The chaotic, stressful, and busy nature of ED environments makes them particularly susceptible to problems with communication and collaboration. • Improvements to Interprofessional Collaborative Practice (IPCP) have been identified as a solution. Problem: Low levels of physician engagement are a barrier to improving IPCP. Purpose: Identify and synthesize challenges, needed resources, and successful strategies used to improve physician participation in IPCP.