Effective communication among healthcare professionals in the intensive care unit (ICU) is a particular imperative, with accurate and efficient interdisciplinary communication being a critical prerequisite for high-quality care. Nurses and physicians are highly important parts of the healthcare system workforce. Thus, identifying strategies that would improve communication between these two groups can provide evidence for practical improvement in the ICU, which will ultimately improve patient outcomes. This integrative literature review aimed to identify interventions that improve communication between nurses and physicians in ICUs. Three databases (Medline, CINAHL, and Science Direct) were searched between September 2014 and June 2016 using 11 search terms, namely, nurse, doctor, physician, resident, clinician, ICU, intensive care unit, communication, teamwork, collaboration, and relationship. A manual search of the reference lists of found papers was also conducted. Eleven articles met the inclusion criteria. These studies reported on the use of communication tools/checklists, team training, multidisciplinary structured work shift evaluation, and electronic situation–background–assessment–recommendation documentation templates to improve communication. Although which intervention strategies are most effective remains unclear, this review suggests that these strategies improve communication to some extent. Future studies should be rigorously designed and outcome measures should be specific and validated to capture and reflect the effects of effective communication.