Medicaid is one of the largest and most consequential public programs in the United States. Jointly financed by the federal government and the states, it now provides health coverage to approximately 75 million Americans and consumes a substantial share of both federal and state public spending.1 In many states, Medicaid represents one of the single largest categories of government expenditure, with implications that extend well beyond health policy alone. The program affects state budgets, labor-market incentives, provider markets, insurance coverage patterns, administrative capacity, and the broader structure of the American health care system. 

At the same time, Medicaid occupies a distinctive place within the American constitutional system. Unlike purely federal entitlement programs, Medicaid operates through a model of cooperative federalism in which federal law establishes broad program parameters while states retain substantial discretion over implementation and program design. States make consequential decisions regarding eligibility standards, benefit structures, delivery systems, managed care arrangements, provider regulation, administrative procedures, and supplemental reforms. The result is not a single national Medicaid program, but rather a collection of state-administered systems operating within a shared federal framework.2

Since its creation in 1965, Medicaid has expanded substantially in both scale and scope. Originally designed primarily to provide medical assistance to low-income children, pregnant women, elderly individuals, and people with disabilities, the program has evolved into a much broader component of the American health coverage system. Legislative changes over several decades, particularly the Affordable Care Act’s expansion of eligibility for able-bodied adults, significantly increased enrollment and federal Medicaid spending. More recently, the COVID-19 public health emergency and accompanying continuous-coverage requirements temporarily suspended routine eligibility redeterminations, further accelerating enrollment growth and highlighting the administrative complexity involved in managing large public insurance programs.3

As Medicaid’s fiscal and institutional footprint has grown, so too has the importance of how states administer and structure their programs. Differences in eligibility systems, managed care arrangements, provider regulation, program-integrity enforcement, and spending growth now carry major implications not only for beneficiaries, but also for state budgets, provider markets, and the long-term sustainability of public health financing. States also differ significantly in administrative effectiveness, provider availability, regulatory barriers, and broader health policy environments. These differences make Medicaid particularly well suited to comparative analysis.

While numerous organizations track individual aspects of Medicaid performance, relatively few attempt to evaluate state Medicaid programs through a unified framework that incorporates fiscal sustainability, administrative performance, program integrity, and provider-market structure simultaneously. Evaluating these dimensions together provides a more comprehensive view of how state Medicaid programs are governed and how they are likely to perform over time.

The size and complexity of the program create difficult governance challenges. Medicaid must balance competing objectives that are not always easily reconciled: expanding access while maintaining fiscal sustainability; enforcing eligibility rules while minimizing unnecessary administrative disruption; increasing coverage while preserving provider participation and system capacity; balancing federal requirements with state flexibility; and maintaining public oversight without creating excessive bureaucracy, distortion, or dependency. Reasonable policymakers may disagree about how those tradeoffs should be resolved. Nevertheless, the existence of tradeoffs does not eliminate the need for serious comparative evaluation of how states administer and structure their programs.

This report presents a 50-state Medicaid scorecard designed to evaluate how states differ across a range of fiscal, administrative, structural, and market-oriented indicators. Drawing from publicly available national datasets, the report provides a comparative framework for assessing the governance, trajectory, and long-term sustainability of state Medicaid programs. The sections that follow explain the methodology used to construct the scorecard, present detailed state profiles, and summarize broader national patterns revealed by the data.