Comprehensiveness Revisited for Next-Generation Family Medicine

Comprehensiveness has long stood as the beating heart of family medicine, perhaps the most distinctive feature of the discipline, and the most empirically linked to lower costs, improved outcomes, and greater equity. Barbara Starfield famously argued that comprehensiveness is “the most powerful of the 4Cs”—1^st Contact, Continuity, Coordination, and Comprehensiveness—that she declared responsible for the salutary effects of primary care and family medicine. Evidence since her seminal work has both operationalized comprehensiveness as measurable and reaffirmed its importance to achieving crucial population and policy outcomes. Yet in 2025, family medicine finds itself at an inflection point.