Anecdotal evidence suggests that communication issues are one of the primary reasons for physician complaints, but quantitative studies have yet to examine this assertion. The North Carolina Medical Board's Complaint Department maintains data on physician complaints and categorizes each complaint based on its primary cause. Using data from 2002–2012, our research focused on complaints against physicians licensed by the North Carolina board to determine the extent to which communication issues contribute to complaints against physicians. An analysis of this data reveals that physician complaints based on communication issues are consistently the most prevalent reason for complaints against physicians in the state of North Carolina. In addition, communication-based complaints account for more than one in five complaints made against North Carolina physicians. These results are discussed in light of their implications for the field of medicine as it seeks to improve patient care.