After most health insurers racked up financial losses on Affordable Care Act plans in 2014, many companies’ results for last year worsened, creating heavy pressure to improve performance this year.

Walt Whitlow was under treatment for cancer when he got an unwelcome surprise. His financial assistance under President Barack Obama's health care law got slashed. That meant his premium quadrupled and his deductible went from $900 to $4,600.

The number of people who signed up for health insurance for 2016 on the state and federal exchanges was up to 40% lower than earlier government and private estimates, which some say is evidence that the plans are too expensive and that people would rather pay a penalty than buy them.

For the first time in three years, Blue Shield of California leads enrollment in the state’s insurance exchange while Oscar, a closely watched newcomer, experienced a slow start. The Covered California exchange said it won’t release enrollment figures by company until later this month, and insurers declined to share specifics until then. But interviews with ...

Five years into Medicare spending cuts that were supposed to devastate private Medicare options for older Americans, enrollment in private insurance plans through Medicare has shot up by more than 50 percent, confounding experts and partisans alike and providing possible lessons for the Affordable Care Act’s insurance exchanges.

Many contractors who provide farm labor and must now offer workers health insurance are complaining loudly about the cost in their already low-margin business.