Analysis of nearly half a million Americans reveals that adults without college degrees are increasingly isolated from preventive healthcare. By 2022, those lacking bachelor's degrees were twice as likely to report zero healthcare provider visits compared to college graduates, representing a dramatic widening from 1996 levels. The disparity proved even starker when controlling for underlying health conditions, suggesting access barriers rather than need differences drive the gap. Parallel mortality data spanning over 26 million death certificates showed corresponding increases in preventable deaths among less-educated populations. This bifurcation reflects a healthcare system increasingly stratified by educational attainment, with profound implications for population health equity. The trend contradicts decades of public health initiatives aimed at universal access and suggests that existing safety nets inadequately serve working-class Americans. Unlike income-based disparities, educational gaps may persist even with insurance coverage, pointing to complex barriers including health literacy, provider availability, and care navigation skills. The widening chasm represents a fundamental challenge to American healthcare's ostensible universality, potentially creating a two-tiered system where preventive care becomes a privilege of the educated class.