Maine Medical Center plans to leave the Anthem insurance network in January because of the insurer’s payment practices, including what hospital officials say is $13 million in underpayments to the hospital and more than $70 million in unpaid claims to the MaineHealth hospital network. The dispute pitting the state’s largest hospital against one of Maine’s largest health insurers could affect more than 150,000 patients, who would have to pay higher out-of-pocket costs at Maine Med.
