Health Insurance Startup Expands Amid Affordable Care Act Changes

NEW YORK—Oscar Health Insurance started selling insurance plans in 2014, the year that 15 million Americans were entering the marketplace for the first time with the passage of the Affordable Care Act. And even with the repealof the ACA’s individual mandate, which in 2019 will let people opt out of health insurance coverage without having to pay a penalty, Oscar continues to expand, having signed up more than 250,000 new members in 2017, many of them millennials, representing a 150% gain from the previous year