Before it is possible to deliberate seriously about healthcare reform — what should change, how, at what cost, with what likely consequences — it is necessary to understand what the existing system actually is. That sounds obvious. But the American healthcare system is genuinely complex in ways that make it easy to hold strong opinions about without understanding clearly, and that complexity is itself part of why reform has proven so difficult.
This article describes how the system is structured: who pays for care, how prices are set, how the major coverage categories relate to each other, and what the peculiarities of American healthcare look like when compared to how peer countries have organized the same function. It does not advocate for any particular reform approach. It provides the orientation that informed participation in healthcare deliberation requires.
Not One System But Several
The most important thing to understand about American healthcare is that it is not a single system. It is several distinct systems operating simultaneously, covering different populations under different rules, financed through different mechanisms, and producing substantially different experiences for the people within them.
The major coverage categories are:
Employer-sponsored insurance covers approximately 160 million Americans — about half the population. Employers purchase insurance on behalf of their employees, typically covering a share of the premium while employees pay the remainder through payroll deduction. The coverage terms — deductibles, copays, network restrictions, covered services — vary enormously by employer, plan type, and negotiated terms. A person covered by a large employer’s self-insured plan has a fundamentally different healthcare experience than a person covered by a small employer’s fully-insured plan, even if both describe themselves as having employer-sponsored coverage.
Medicare covers approximately 65 million Americans, primarily those 65 and older, along with certain people with disabilities and those with end-stage renal disease. Medicare is a federal program with standardized benefits administered through a combination of government-run traditional Medicare and privately administered Medicare Advantage plans. The distinction between traditional Medicare and Medicare Advantage — what each covers, what each costs, how each interacts with supplemental coverage — is a source of significant confusion and consequential financial decisions for beneficiaries.
Medicaid covers approximately 90 million Americans — low-income adults, children, pregnant women, elderly people requiring long-term care, and people with disabilities. Medicaid is jointly funded by federal and state governments and administered by states within federal guidelines, which means coverage, benefits, and eligibility thresholds vary significantly by state. A person with the same income and health status may be fully covered in one state and ineligible in a neighboring state, depending on whether that state expanded Medicaid under the Affordable Care Act and what its pre-expansion eligibility thresholds were.
ACA marketplace insurance covers approximately 20 million Americans who purchase coverage through the insurance marketplaces established by the Affordable Care Act. These plans are sold by private insurers within a regulatory framework that standardizes certain features — coverage of essential health benefits, prohibition of pre-existing condition exclusions, limits on premium variation by age — and provides income-based subsidies to make premiums affordable. The ACA marketplaces were designed to serve people who lack access to employer-sponsored coverage and do not qualify for Medicare or Medicaid.
Veterans Administration healthcare serves approximately 9 million enrolled veterans through a network of VA medical centers and clinics operated directly by the federal government. The VA is unusual among American healthcare institutions in that it is a fully integrated system — the government both pays for and provides care, rather than paying private providers. This makes it more directly comparable to national health services in other countries than to any other American coverage category.
The uninsured population numbers approximately 25 to 30 million people, depending on measurement methodology and year. Uninsured individuals receive care through emergency departments, community health centers, free clinics, and other safety-net providers, often without paying. The costs of uncompensated care are partially absorbed by hospitals and partially shifted to insured patients through higher prices — a form of implicit cross-subsidy that is built into hospital pricing but rarely made explicit.
These systems do not operate independently. They interact in ways that shape who gets what care under what circumstances. A person who loses employer-sponsored coverage may move to ACA marketplace coverage, Medicaid, or the uninsured population depending on their income and state of residence. A person who turns 65 moves from employer or marketplace coverage to Medicare, with decisions about supplemental coverage and Medicare Advantage that can significantly affect their care experience and costs. An elderly person who exhausts their personal assets while requiring long-term care may transition to Medicaid as the payer of last resort. Understanding any one of these categories requires understanding how it interfaces with the others.
How Prices Work — or Don’t
Healthcare pricing in the United States is unlike pricing in virtually any other sector of the economy, and unlike healthcare pricing in any other wealthy country. Understanding why requires understanding the layered system of list prices, negotiated rates, and actual payments that determines what healthcare costs for different payers.
Chargemaster prices are the list prices that hospitals and other providers set for their services. These prices bear little relationship to what anyone actually pays. They are starting points for negotiation, not transaction prices. A hospital might have a chargemaster price of $10,000 for a procedure that Medicare reimburses at $3,000, a large private insurer reimburses at $4,500, a small insurer reimburses at $7,000, and an uninsured patient is billed at the full $10,000 — though the hospital may discount significantly from that figure for patients who apply for financial assistance.
Negotiated rates are the prices that insurers pay providers after contracting. Large insurers, who bring large patient volumes to their contracts with providers, can negotiate lower rates. Small insurers have less leverage. Self-insured employers who contract directly with providers may negotiate directly or through third-party administrators. The negotiated rates that any given insurer pays any given provider are confidential — they are not publicly disclosed. This opacity makes it impossible for patients or employers to comparison-shop on the basis of actual prices, even where such comparison might be possible.
Medicare and Medicaid payment rates are set by government rather than negotiated. Medicare rates are established through a complex formula involving physician work, practice costs, and geographic adjustments. Medicaid rates are set by states and are typically lower than Medicare rates. Most providers accept Medicare and Medicaid patients despite the lower rates because volume and the legal requirements associated with serving these populations make them necessary. But the gap between Medicare and Medicaid rates and the rates commercial insurers pay is a persistent source of cross-subsidy in the hospital financing system: commercial insurance pays more partly to compensate for government program underpayment.
Balance billing — the practice of billing patients for the difference between what a provider charges and what an insurer pays — was a common source of surprise medical bills until federal legislation restricted it for emergency care in 2022. The No Surprises Act addressed the most acute version of the problem but did not eliminate all circumstances in which patients receive unexpected bills from out-of-network providers.
Pharmaceutical pricing follows its own distinct logic. Drug manufacturers set launch prices based on what the market will bear — a calculation that incorporates patent protection, competition from alternative therapies, and, in the United States, the absence of centralized price negotiation. The Inflation Reduction Act of 2022 gave Medicare limited authority to negotiate prices for a small number of high-cost drugs, the first such authority since Medicare Part D was created in 2003. Prices in other wealthy countries are set through explicit negotiation or reference pricing against other markets, which is why the same drug routinely costs substantially more in the United States than in Canada, Germany, or Australia.
The aggregate effect of this pricing structure is a system in which the actual price of any given healthcare service depends heavily on who is paying — government program, large insurer, small insurer, or uninsured individual — with no systematic relationship between price and quality, and with prices largely hidden from the people making healthcare decisions.
Administrative Complexity and Its Costs
One of the most distinctive features of American healthcare, from a comparative perspective, is the scale of its administrative apparatus. Billing, coding, prior authorization, claims adjudication, appeals, credentialing, compliance, and the management of relationships with dozens of distinct payers — each with different coverage rules, billing requirements, and payment systems — consume a share of healthcare spending with no close parallel in other wealthy countries.
Estimates of administrative cost as a share of total healthcare spending vary by methodology, but studies consistently find that administration accounts for a substantially higher percentage of healthcare costs in the United States than in peer countries. A frequently cited study in the New England Journal of Medicine estimated that 34.2 percent of healthcare expenditures went to administrative costs in the United States, compared to 12 percent in Canada’s single-payer system.
The administrative burden falls on providers as well as payers. Physician practices, particularly small and independent ones, devote significant staff time and resources to billing and prior authorization processes. The proliferation of electronic health records systems that do not communicate with each other adds another layer of administrative complexity. Hospitals maintain large billing departments whose function is navigating the requirements of dozens of distinct payers — a function that does not exist in countries with simpler payment systems.
This administrative complexity is not simply an efficiency problem. It shapes clinical behavior: prior authorization requirements affect which treatments physicians can provide without bureaucratic delay. It shapes practice structure: small independent practices find the administrative burden increasingly difficult to sustain, contributing to consolidation into larger health systems. And it shapes patient experience: the difficulty of understanding a medical bill, navigating an insurance dispute, or determining in advance what a procedure will cost is a consistent source of frustration that contributes to delayed care and financial harm.
How American Healthcare Compares
The United States is unusual among wealthy countries in several respects that are relevant to any serious policy discussion.
Spending. The United States spends substantially more on healthcare per capita than any other wealthy country — roughly twice the average of comparable nations. This is not primarily a function of Americans using more healthcare services. It is primarily a function of prices: the United States pays more per unit of healthcare service than peer countries, across most service categories.
Coverage. The United States is the only wealthy country without universal health coverage. Approximately 8 percent of the population is uninsured at any given time, with additional millions underinsured — covered by plans with deductibles or out-of-pocket maximums that effectively limit access to care. This coverage gap is not simply a redistributive question; it has direct effects on population health outcomes, as people without coverage delay or forgo care in ways that result in worse health outcomes and, often, higher costs when conditions progress to the point of emergency.
Outcomes. Despite the highest per-capita spending in the world, the United States does not achieve the best health outcomes among wealthy countries across most standard measures. Life expectancy is lower than in most peer countries. Infant mortality is higher. Maternal mortality is dramatically higher. Preventable death rates — deaths that a functioning healthcare system should prevent — are above the wealthy-country average.
Administrative cost. As noted above, the administrative overhead of the American system is substantially higher than in peer countries, and the difference is attributable to the multi-payer structure and its associated billing complexity rather than to any superiority of clinical administration.
Long-term care. The United States lacks the comprehensive long-term care financing that many peer countries provide — a gap that is examined in detail in Long-Term Care: The Crisis Nobody Is Talking About.
These comparisons do not determine what the right policy response is. Countries with universal coverage have reached it through a variety of different structural approaches — single-payer systems, regulated multi-payer systems, public options alongside private insurance, mixed public-private systems — and the evidence on which approach produces the best outcomes under what conditions is more complex than any simple comparison suggests. What the comparisons do establish is the scale of the gap between what American healthcare costs and what it delivers, and the fact that other wealthy countries have found ways to provide comparable or better care at substantially lower cost.
What Drives Healthcare Costs
Healthcare cost growth in the United States has consistently outpaced general inflation and wage growth over the past several decades, with significant consequences for household budgets, employer competitiveness, and public program fiscal sustainability. Understanding what drives that cost growth is a prerequisite for evaluating reform proposals aimed at controlling it.
Prices, not utilization. The dominant explanation for why American healthcare costs more than comparable countries is not that Americans use more healthcare services — the evidence does not consistently support that. It is that the United States pays higher prices per unit of service. This distinction matters for policy: interventions aimed at reducing utilization address a different problem than interventions aimed at changing the price-setting structure.
Chronic disease burden. The United States has higher rates of obesity, diabetes, heart disease, and other chronic conditions than most peer countries, and chronic disease management accounts for a large share of healthcare spending. Some of this burden reflects healthcare system failures — inadequate access to preventive care, insufficient investment in public health — and some reflects broader social determinants of health that lie outside the healthcare system itself.
Pharmaceutical costs. Drug spending per capita in the United States is substantially higher than in peer countries, driven by higher prices rather than higher utilization. The structure of pharmaceutical pricing — manufacturer-set launch prices in the absence of centralized negotiation, patent protections that limit generic competition, and pharmacy benefit manager intermediaries with their own economic interests — produces a pricing environment with no close parallel elsewhere.
Provider consolidation. Hospital and physician practice consolidation has reduced competitive pressure on prices in many markets. When a health system controls most of the hospital capacity in a region, insurers have limited ability to negotiate lower rates. The evidence on the relationship between market concentration and healthcare prices consistently finds that consolidation is associated with higher prices.
Administrative overhead. As described above, the administrative complexity of the multi-payer system imposes costs on providers and payers that contribute to overall spending without contributing to clinical outcomes.
Defensive medicine. The American medical liability environment — the risk of malpractice litigation and the associated costs of malpractice insurance — is associated with higher utilization of diagnostic tests and procedures as physicians seek to document clinical decision-making and reduce litigation risk. The magnitude of this effect is debated, but it is a factor in the cost structure that has no parallel in countries with different liability systems.
Why Understanding the Structure Matters
Healthcare reform debates in the United States frequently involve people with strong opinions about what should change who do not share a common understanding of how the existing system works. That creates a specific kind of policy failure: proposals are evaluated against assumptions about the system that are not accurate, consequences are not anticipated because the relevant structural relationships are not understood, and deliberation produces more heat than light.
This is not primarily a failure of intelligence or good faith. The system is genuinely complicated, and the complexity is compounding — each layer of reform has added to the structure without simplifying it. But it means that productive deliberation about healthcare requires participants who share a common orientation to the facts of the system: who pays whom, how prices are set, what the coverage gaps are, and how the American system compares to alternatives.
That is what this article attempts to provide. The subsequent articles in this hub — on why reform keeps failing, on the long-term care crisis, and on the full range of reform proposals — build on this foundation. The forum discussion that this hub is designed to support requires participants who can engage with the specifics of the system rather than with abstractions about what healthcare should be.
The people with the deepest knowledge of how the system actually works — not in the abstract but in the specific, operational, on-the-ground sense — are often the people who have spent careers working within it: the billing staff who navigate insurer requirements daily, the primary care physicians who manage prior authorizations while trying to see patients, the social workers who spend hours locating post-acute care placements, the patients who have fought insurance denials, the family members who have tried to arrange long-term care on short notice. That knowledge belongs in the deliberative process. This hub is one place it can go.
This article was researched and drafted with AI assistance under human review. See our full AI and editorial practices.