Matej Mikulic
Research expert covering health, pharma & medtech
Health expenditures in the U.S. – statistics & facts
The U.S. health system stands apart from any comparable economy in both absolute and relative terms. U.S. national health expenditure as a share of GDP reached 18 percent in 2024, a ratio no OECD peer approaches, with Germany, the closest comparator, standing at 12.3 percent in the same year. On a per capita basis, national health spending amounted to $15,474 per person in 2024, more than 1.5 times the level recorded in Switzerland, the second-highest OECD spender. Within that aggregate, the spending structure is notably concentrated: hospital care alone accounted for 31 percent of total health expenditure, followed by physician and clinical services at 21 percent, together representing over half of all U.S. health spending in 2024. This means cost pressures in inpatient and clinical settings carry a systemic weight that few other categories can match, and that improvements or disruptions in these two segments reverberate across the entire system.
How demographics are reshaping who pays
The U.S. funds its health system through a distinctive multi-payer architecture, and the balance is shifting. Private health insurance remained the single largest contributor, but the directional pressure is clearly toward public financing. Medicare outlays reached $910 billion in 2024 and are projected to exceed $1.7 trillion by 2035, driven by the continued aging of the population into Medicare eligibility. On the Medicaid side, state-level spending accelerated by 19.2 percent in 2024 alone, the sharpest single-year increase among all payer categories. Both trends are shaped primarily by structural demographic shifts: as the baby-boom cohort reaches ages of higher health care consumption, public programs absorb an expanding share of total spending.This deepening reliance on public financing increases the system's sensitivity to fiscal constraints, legislative changes, and budgetary cycles at both the federal and state level.
A shrinking share that still adds up to more
A structural tension defines the out-of-pocket dimension of U.S. health spending. Out-of-pocket payments as a share of total personal health care expenditure declined from roughly 13.9 percent in 2010 to 12.3 percent in 2024, suggesting that expanded insurance coverage, both public and private, has absorbed a growing proportion of total costs over time. Yet in absolute terms, out-of-pocket payments reached $556.6 billion in 2024, with per capita costs standing at $1,514 in 2023. This divergence reveals a structural dynamic: even as cost-sharing ratios decline, the sheer magnitude of overall health expenditure growth means individuals continue to face a rising dollar burden in absolute terms. The pattern is particularly visible in prescription drugs, where out-of-pocket exposure intersects with private insurance coverage gaps. This points to a system in which coverage expansion alone does not automatically translate into reduced financial pressure at the individual level.
Strategic outlook
The U.S. health system is entering a period in which established structural pressures, including demographic aging, category concentration, and the deepening role of public payers, are expected to compound one another. Enrollment in Medicare is projected to represent 22 percent of the total U.S. population by 2034, and Medicare is forecast to grow faster than any other major funding source over the coming decade. The aging of the oldest baby boomers into the phase of life associated with the highest per-person health care consumption is a well-documented driver that tends to be underestimated in the short term but proves durable over time.
At the same time, the near-term spending trajectory is being shaped by additional forces that introduce meaningful uncertainty. The expanded use of high-cost therapies, including GLP-1 drugs and novel oncology treatments, is driving prescription drug spending growth that has consistently outpaced headline NHE growth. Legislative developments, including significant projected reductions in Medicaid and marketplace enrollment stemming from recent budget legislation, could materially alter the payer mix and the insured share of the population. These shifts would not reduce total health expenditure per se, but could reallocate financial burdens across payers and individuals in ways that are difficult to model precisely. Whether the system's current structural trajectory toward greater public-payer dependence and persistently elevated absolute costs proves sustainable under this combination of demographic and legislative pressures remains an open question.
