Marilyn B. Tavenner, the former Obama administration official in charge of the rollout of HealthCare.gov, was chosen on Wednesday to be the top lobbyist for the nation’s health insurance industry.

More than a dozen other states that expanded their Medicaid programs under the ACA also have seen enrollment surpass expectations.

San Francisco will begin offering subsidies to thousands of city residents who are struggling to purchase health insurance, Mayor Ed Lee announced Friday.

The average Obamacare health plan's provider network includes 34 percent fewer health care providers than the typical commercial plan, according to an analysis by Avalere, a Washington, D.C.-based health care consultancy.

Until recently, John Henry Foster, an equipment distribution firm based in Eagan, Minn., offered its employees only a couple of health plans to choose from. That’s common in companies across America.

A watchdog report on fictitious people signing up for ObamaCare has put renewed attention on the potential for fraud and abuse in the system.