The health care provider negotiates lower rates with in-network providers to save members money, however, members allege that Cigna participated in a "fraudulent scheme" that overcharged its members, says the complaint.

Though the drug chains have not admitted to wrongdoing, CVS would pay $5 billion while Walgreens would pay $5.7 billion to states and local governments for opioid crisis abatement and remediation programs.

Employers claim that the health care company, now known as Elevance Health, breached its fiduciary duties under ERISA because they were denied access to plan claims due to mismanagement of funds.