UnitedHealthcare is returning to one of the government-run health exchanges that the nation's largest insurer largely abandoned in 2017.
Minnetonka-based UnitedHealthcare must sell coverage next year on the health exchange for Massachusetts because it now covers more than 5,000 people in the state via small-employer health plans.
The individual and small-group markets are merged in Massachusetts, where state law requires insurers of a certain size to sell on the exchange.
"It wasn't necessarily a voluntary decision on our part," David Wichmann, chief executive of the insurer's parent, UnitedHealth Group, told investors this week. "I'm going to kind of reaffirm that nothing has fundamentally changed since we made our decision several years back now."
The addition of UnitedHealthcare in Massachusetts comes as insurers show new interest in markets under the federal Affordable Care Act that had been money losers for health plans.
There have been roughly a dozen other examples this year where carriers for 2019 are expanding in the individual market, which serves people under age 65 who are self-employed or don't get job-based coverage.
Minnetonka-based Medica plans to start selling the coverage in Missouri and Oklahoma, while startup Bright Health, which is based in Minneapolis, said it will sell individual policies in parts of Arizona and Tennessee.
The individual market underwent sweeping change starting in 2014 with the ACA, which prohibits insurers from denying coverage to people with pre-existing health conditions.