J. Frank Wharam, MD, MPH

Employer-mandated enrollment in a high-deductible health plan did not reduce use of oral targeted anticancer medications among patients commercially insured between 2007 and 2021.

More large employers with high-deductible health plans with health savings accounts offer preventive drug list benefits over time.

Given trends in cost and use, insulin out-of-pocket cost reduction policies would be more efficient if they targeted members in high-deductible health plans with savings options and low-income patients.

Regular users of the emergency department (ED) transiently reduced ED visits when faced with ED access barriers during the COVID-19 pandemic.

High-deductible health plan members with bipolar disorder experienced a reduction in nonpsychiatrist mental health provider visits but no changes in other utilization.