When Coverage Frays, Costs Spill: How Policy Decisions Drive Medical Debt in Missouri 

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Illustration of group of people under damaged umbrella in rainstorm. In the background is photo- illustration of Missouri Capitol building

When we think about Medicaid or the Health Insurance Marketplace, we often picture a single doorway, one program, one group of people, or one set of rules. Missouri’s health coverage system actually looks more like a river system: Medicaid flowing beneath our communities, the Marketplace running alongside it, and employer coverage feeding into the same ecosystem. Each stream supports the others. When one is dammed or drained, pressure builds everywhere else. Health coverage does not fail in isolation. When it falters, the consequences spill outward. 

Medicaid covers children, older adults, people with disabilities, pregnant and postpartum Missourians, and low-income families. The Marketplace serves small business owners, farmers, caregivers, and people whose jobs don’t offer affordable insurance. These aren’t separate populations. People move between coverage types as their jobs, health, and family circumstances change. When one pathway becomes harder to access or afford, the effects ripple beyond coverage programs and into household finances. For many Missourians, those ripples show up as medical debt. 

Missouri Foundation for Health’s work on medical debt has made one thing clear: medical debt is a policy choice. It is often the predictable result of coverage systems that expose people to high out-of-pocket costs, eligibility gaps, or sudden loss of insurance, especially during illness or major life transitions. 

Even before recent federal debates over Medicaid funding and Marketplace affordability, many Missourians were already struggling. Our 2022 Health Care Experience Survey found that most adults had difficulty affording care. When care is unaffordable, people delay it, ration it, or take it on as debt. Medicaid expansion brought coverage to more than 350,000 Missourians, but coverage alone has never been enough to protect families from rising costs. 

Our 2024 statewide medical debt survey found that nearly half of Missouri adults have current or recent medical debt, and four in 10 could not cover a $500 unexpected medical bill. Most people with medical debt were insured when they received care. Insurance helps, but it doesn’t shield families from high premiums, deductibles, surprise bills, or gaps in coverage. Today, new policy choices threaten to make this crisis worse. 

As enhanced Marketplace subsidies expired and Congress debates federal spending and Medicaid policy, many Missourians are seeing coverage become less affordable or disappear entirely. When premiums rise beyond reach, people don’t opt out lightly; they decide they can’t afford to stay covered. To put it simply, it’s not that people are trying to make a poor choice by going without coverage; it’s that they no longer have good choices to make, as they have been priced out. 

When healthier or younger people drop coverage, insurance markets destabilize and premiums rise again. Many insurers operate across Medicaid, Marketplace, and employer plans, meaning disruptions in one part of the system drive costs up everywhere. Proposed Medicaid reductions and the loss of premium assistance don’t stay contained—they reverberate across the entire health care ecosystem. 

Nationally, millions of people are projected to lose coverage over the next decade if these changes move forward. When coverage shrinks at that scale, the cost of care doesn’t disappear. Hospitals, clinics, and families absorb it—and it shows up as medical debt. Medical debt shows up in rural counties where former Medicaid enrollees face new barriers to care. It shows up in families spending a growing share of their income on premiums. It shows up when an unexpected illness or injury turns into years of unpaid bills, because health care isn’t optional. 

Medical debt doesn’t stop at the hospital door. Research consistently links it to housing instability, food insecurity, and delayed care—patterns we see across Missouri. Families burdened by medical bills are more likely to skip prescriptions, fall behind on rent, and cut back on basic necessities, effects that ripple through communities. 

Missouri is already facing a medical debt crisis. Allowing Medicaid funding to erode, making coverage harder to access, and letting premiums spiral will push more families into debt and shift more costs onto communities. These outcomes are not inevitable. They are the result of choices made by Congress and implemented at the state level—choices about who gets covered, how affordable that coverage is, and whether health care is treated as a shared responsibility or an individual gamble. 

Protecting Medicaid and affordable coverage means choosing a different path: one where Missourians can get care before debt takes hold, not after. The decisions being made now will determine whether health coverage remains a stabilizing force for families—or becomes another source of financial harm. 

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