Three of the five largest for-profit payers saw double-digit growth in their Medicare Advantage membership in the fourth quarter of fiscal year 2019.

The 10 largest U.S. health insurers, according to data from the National Association of Insurance Commissioners cited by Insurance Business America, are listed below, along with their CEO:

Since 2015, UnitedHealth Group's Optum unit has outpaced its insurance arm in fourth-quarter profit, according to financial filings.

In 2018, about 1 in 7 families in the U.S. faced problems paying medical bills, according to new CDC data.

The following payer executives changed their positions in the past few weeks.

Despite what appears to be a win for "Medicare for All" in the New Hampshire Democratic primaries — a policy that would effectively eliminate private payers — health insurer stocks are up.

CEOs leading insurance companies, including health plans, saw their compensation packages altered after the 2008 financial crisis, according to a new study from the Florida International University College of Business.

Private employees in New Hampshire have the highest average family deductible for employer-sponsored health plans, according to data from the Kaiser Family Foundation.

Cigna named new executives to pharmacy benefits manager Express Scripts, which is part of the insurer's health services business.

Molina Healthcare ended the fourth quarter of fiscal year 2019 with lower net income than a year prior as premium revenues declined, according to recent financial documents.

Horizon Blue Cross Blue Shield of New Jersey named a new CEO Feb. 11 as its current leader moves into a different strategic role.

Seven recent articles posted by Becker's Hospital Review that concern payer-provider relationships:

Houston-based Memorial Hermann Health System and Cigna temporarily extended their in-network agreement through April, according to Houston Public Media.

Patients of Hospital Sisters Health System and Prevea Health with Anthem Blue Cross and Blue Shield in Wisconsin insurance may face higher out-of-pocket costs if the organizations fail to reach a contract agreement by a looming deadline, according to the Green Bay Press Gazette. 

An ongoing legal battle over whether Anthem or Cigna owes the other billions in termination fees may be coming to an end. 

San Francisco-based Dignity Health and Cigna still lack an agreement more than a month after their contract expired Dec. 31, according to Kaiser Health News.

Health Share of Oregon, one of the state's largest Medicaid providers, began notifying 654,362 members Feb. 5 that a computer storing their information was stolen from a third-party vendor.

Cigna continued to realize higher revenues and profits in the fourth quarter of fiscal year 2019, thanks to its subsidiary Express Scripts.

CMS published a proposed rule Feb. 5 that seeks to lower drug costs for Medicare Advantage beneficiaries, boost payments for the plans and rework Star Ratings, among other proposals.

Centene Corp. is postponing the release of its 2020 financial forecast due to the insurer's recent integration with WellCare Health Plans.