The U.S. government said it would increase by 2.53 percent on average 2020 payments to the health insurers that manage Medicare Advantage insurance plans for seniors and the disabled, a reflection of a new estimate on medical cost growth.

Anthem Inc. partnered with Walmart Inc. to launch a program in January 2019 that will allow the health benefit company’s Medicare Advantage plan customers to purchase over-the-counter medications from the retailer’s stores and website.

U.S. Health and Human Services Secretary Alex Azar said it was within his agency’s power to eliminate rebates on prescription drug purchases, a key element of the Trump administration’s plan to lower prescription medicine costs.

UnitedHealth Group Inc. reported second-quarter medical costs slightly higher than Wall Street expectations, sending the largest U.S. health insurer’s shares down 4 percent and weighing on the rest of the sector.

The U.S. government said it would increase by 3.4 percent on average 2019 payments to the health insurers that manage Medicare Advantage insurance plans for seniors and the disabled, a higher-than-expected rise reflecting a projection of higher medical cost growth.

According to the consultants at PwC, the top health industry issues of 2018 will be …