Mark Bertolini, Aetna chairman and CEO

As the future of Obamacare enters the national spotlight under president-elect Donald Trump, health-care premiums will go up next year unless the system is fixed, Aetna CEO Mark Bertolini said Thursday.

"Most Americans hate their insurance and they hate the health-care system. It's unaffordable and it needs to be fixed," he said. "You can't put [people] out on the street without insurance."