Most Americans enrolled in health plans through the Affordable Care Act are happy with their coverage, despite persistent attacks on the health law by Republicans, including presumptive presidential nominee Donald Trump.

Obamacare plan customers should brace for sticker shock when the administration posts insurers' preliminary rate requests for 2017 this week.

A Centers for Disease Control and Prevention survey shows California's uninsured rate is down to 8.1 percent.

President Barack Obama’s administration is approving California’s plan to restructure health-plan taxes to generate money for Medi-Cal, which provides health coverage to the poor.

A coalition of health groups has launched a new campaign to ask voters in November to increase California's tax on cigarettes by $2 per pack, this time enlisting deep-pocket supporters to counter a tobacco industry that blocked several attempts in the past.

What a difference a bad year makes. Executives at UnitedHealth Group initially voiced optimism about their prospects on the Affordable Care Act's insurance exchanges. The nation's largest health insurer foresaw a big role for individual plans in its business model.