The leader of UnitedHealth Group Inc.’s Optum Health care delivery unit has left the role, an early indication of management changes under Stephen Hemsley, UnitedHealth’s new chief executive officer.

The company said it had not received notice of any investigation.

Speaking from the company’s headquarters outside of Minneapolis, this was Tim Noel's first media interview since taking on the new role.

Tim Noel, who was most recently chief executive of UnitedHealth’s Medicare division, will become CEO of the UnitedHealthcare business, the company said in an emailed statement.

The talks come amid ongoing pressure from the federal government to control Medicare costs that have eaten away at Humana's finances and market value.

The Wells Fargo plan paid almost $10,000 for a generic pill for multiple sclerosis that Wegmans pharmacies sold for $648, according to the complaint, driving up premiums and out-of-pocket costs.

On Thursday, Cigna also raised its target for long-term average annual adjusted earnings per share growth to 10%-14% from 10%-13%.

Though J&J is one of the country's largest drugmakers, the lawsuit argues, it failed to use its buying power when purchasing medications to negotiate the best prices for medicines for workers on its health plan.