Medical groups join class action alleging Cigna underpaid claims

The American Medical Association, the Medical Society of New Jersey and the Washington State Medical Association joined a class-action lawsuit against Cigna Corp. Sept. 12 for allegedly failing to pay medical claims in full after members submitted them through MultiPlan Corp., the nation's largest PPO network, reports Becker’s Payer Issues. The lawsuit was originally filed by Cigna members June 10 in a Connecticut federal court and accuses the payer of a purposeful scheme to underpay claims and increase administrative fees.