What additional payment responsibility do beneficiaries have when utilizing non-network providers?

When utilizing non-network providers, beneficiaries typically have a specific additional payment responsibility. They may need to pay the provider directly for the services rendered. After this initial payment, they can file for reimbursement from TRICARE. This process is essential for non-network situations because TRICARE does not have set rates with non-network providers, and the beneficiaries are expected to manage the upfront costs and then seek reimbursement based on TRICARE's allowable charges for the services received. This system ensures that while beneficiaries can access a broader range of providers, they also retain the responsibility for upfront payments and managing the reimbursement process.