The American Medical Association is accusing health insurer Cigna of underpaying claims filed by providers in the contracted MultiPlan network, the largest third-party network in the country. The AMA has joined a class-action lawsuit alleging the insurer reimbursed for claims at non-participating providers' rates rather than the expected MultiPlan contract rates. Cigna
AMA along with New Jersey and Washington physician groups join lawsuit contending Cigna used inappropriate tactics to underpay for out-of-network surgeries, resulting in bills to patients.