Policy experts worry new that policies set for gaining coverage during special enrollment periods on the individual marketplace will affect the Affordable Care Act's exchanges.
Aetna's initiative aims to reduce the amount of powerful opioid prescriptions written by dentists and oral maxillofacial surgeons.
A federal judge blocked the proposed $54 billion tie-up between national insurers Anthem and Cigna late Wednesday, saying the combination would harm competition in the national employer market.
After five consecutive years of coverage gains, progress toward reducing the number of uninsured Americans stalled in 2016, according to a government report that underscores the stakes as Republicans try to roll back Barack Obama's law.
While some health insurers are bailing on the Affordable Care Act exchanges, other are swooping in to take the business they leave behind.