The Peterson-KFF Health System Tracker provides clear, up-to-date information on trends, drivers and issues that impact the performance of the system. It also illustrates how the U.S. is performing relative to other countries and how different parts of the system are performing relative to one another. A partnership of the Peterson Center on Healthcare and the KFF, the Tracker’s work goal places a heavy emphasis on data and evidence, addressing key questions through collections of charts, which provide data with additional context and synthesis of the latest research and developments. The Tracker also provide regular insight briefs for a more in-depth look at topical questions.
Featured Peterson-KFF Resources

The Burden of Medical Debt in the United States
This analysis uses government data to examine the burden of medical debt, including variations based on age, race and ethnicity, and health status . It estimates 9% of adults – or roughly 23 million people -owe medical debt, including 11 million who owe more than $2,000.
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Related Peterson-KFF Resources
- COVID-19 preventable mortality
- Many households do not have enough money to pay cost-sharing typical in private health plans
- Unvaccinated COVID patients cost the U.S. health system billions of dollars
- Most private insurers are no longer waiving cost-sharing for COVID-19 treatment
- Few Adults Are Aware of Hospital Price Transparency Requirements
- Surprise Bills Vary by Diagnosis and Type of Admission
- Overall inflation has not yet flowed through to the health sector
- How does the quality of the U.S. health care system compare to other countries?
- Health System Dashboard

National Health Spending Explorer
The Health Spending Explorer on the Peterson-KFF Health System Tracker helps users examine five decades worth of numbers documenting expenditures by federal and local governments, private insurers, and individuals on 15 categories of health services, including hospitals, physician and clinic care, and prescription drugs.
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What Do We Know about Social Determinants of Health in the U.S. and Comparable Countries?
Slideshow Read MoreA New Way of Measuring Health Costs Sheds Light on Recent Health Spending Trends
National health spending started to grow more rapidly recently after several years of unusually slow growth. This analysis from the Kaiser Family Foundation and the federal Bureau of Economic Analysis helps to dissect why that may be happening. Using recently-released disease-based health spending data compiled by the federal government, the analysis finds…
Issue Brief Read MoreA Look at How the Opioid Crisis Has Affected People with Employer Coverage
This Kaiser Family Foundation analysis finds that while prescription opioid use among people with private insurance has declined to its lowest levels in over a decade, the cost of treating opioid abuse has increased substantially.
Issue Brief Read MoreNew Charts Track Growth in U.S. Health Care Prices, Draw Comparisons to Other Countries
Two new chart collections examine trends in healthcare prices and utilization and compare health spending in the United States with that of other wealthy countries.
News Release Read MoreAnalysis: For Patients with Large Employer Coverage, About 1 in 6 Hospital Stays Includes an Out-of-Network Bill
A new Kaiser Family Foundation analysis of medical bills from large employer plans finds that a significant share of inpatient hospital admissions includes bills from providers not in the health plan’s networks, generally leaving patients subject to higher cost-sharing and potential additional bills from providers. Almost 18 percent of inpatient…
News Release Read MoreVisualizing Health Policy: The Costs and Outcomes of Mental Health and Substance Use Disorders in the US
This Visualizing Health Policy infographic looks at costs and outcomes of mental health and substance use disorders in the United States (US). Nearly 18% of adults reported having a mental, behavioral, or emotional disorder in 2015, including more than 1 in 5 women. Furthermore, nearly 3% of people aged 12…
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