The United States spends more on healthcare per person than any other high-income country, yet produces health outcomes that rank poorly by most international comparisons. Life expectancy is lower, infant mortality is higher, and rates of preventable death exceed those of peer nations. Understanding why requires looking at how healthcare is paid for—and what those payment systems incentivize.

Fee-for-Service: The Dominant Model

Fee-for-service (FFS) is the traditional payment model in American healthcare. Providers are paid for each service they deliver—each visit, each test, each procedure. The more services delivered, the more revenue generated.

This model has a fundamental structural problem: it rewards volume, not value. A physician who orders more tests, performs more procedures, and schedules more follow-up visits earns more money, regardless of whether those services improve patient health. The incentive is to do more, not to do better.

FFS also fragments care. When providers are paid per service rather than for managing a patient’s overall health, there is little financial incentive to coordinate across specialties, prevent hospitalizations, or invest in the kinds of primary care relationships that improve long-term outcomes.

Value-Based Care: The Alternative

Value-based care (VBC) models attempt to align payment with outcomes rather than volume. Instead of paying for each service, payers pay providers based on the health outcomes they achieve, the quality of care they deliver, or both.

The forms vary. Accountable Care Organizations (ACOs) receive shared savings when they keep costs below benchmarks while meeting quality standards. Bundled payment models pay a single amount for an episode of care—a hip replacement, for example—covering all services from surgery through rehabilitation. Capitation models pay a fixed amount per patient per month, giving providers an incentive to keep patients healthy rather than treat them when they are sick.

The Evidence

Research on value-based care models shows mixed results. Some ACO programs have produced modest savings and quality improvements. Others have not. Bundled payments have shown promise for certain procedures. Capitation models have a long history, with outcomes that depend heavily on implementation.

The honest assessment is that value-based care has not yet delivered the transformation its proponents promised. Implementation is difficult. Measuring outcomes fairly is technically challenging. Providers in markets with significant negotiating power can resist payment reform. And the transition from FFS to VBC requires upfront investment that many health systems are reluctant to make.

The Underlying Tension

The deeper tension is between a healthcare system built around acute care—treating illness when it occurs—and a population health model that emphasizes prevention, primary care, and management of chronic conditions. Fee-for-service fits the acute care model. Value-based care fits the population health model.

Shifting from one to the other requires not just changing payment formulas but changing the entire infrastructure of how care is organized, measured, and delivered. That is a much larger project than any single payment reform can accomplish.