Healthy Michigan Plan Evaluation
Did Michigan’s expansion of Medicaid, the public health insurance program for low-income adults, lead to improved access to health care and better health? From 2014 to 2024, IHPI studied these questions and others in collaboration with the Michigan Department of Health and Human Services, and the findings have informed important policy decisions in Michigan and throughout the nation.

Evaluation Overview
IHPI worked with the Michigan Department of Health and Human Services to evaluate the impact of the Healthy Michigan Plan on the health of Michiganders and the state's health care system.
In 2014, Michigan expanded its Medicaid health coverage program, opening it to all adults with very low incomes through the Healthy Michigan Plan. A report from IHPI shows long-term benefits of this expansion – not just for individuals but for primary care clinics and hospitals that serve all Michiganders.
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U-M report shows individuals, hospitals and primary care clinics all experienced positive impacts, but raises concerns about cost-sharing provisions that all states must soon enact
Since 2014, a multi-disciplinary team at the Institute for Healthcare Policy & Innovation has been evaluating the benefits and costs of the expansion of Medicaid in the state of Michigan, known as the Healthy Michigan Plan. John Z. Ayanian, M.D., M.P.P., professor of internal medicine at Michigan Medicine, explains the research and outcomes after nearly eight years of Medicaid expansion.