If you provide care for Tufts Health Together members, please be aware that in order to meet MassHealth’s deadline for submission of health plan encounter data, all outstanding claims, claims corrections, and claims appeals for services provided between Jan. 1, 2025 and Dec. 31, 2025 must be submitted to Tufts Health Plan by July 9, 2026. The most efficient way to submit claims or corrected claims is via electronic data interchange (EDI) in the HIPAA compliant 837 format. To submit claims appeals, providers are encouraged to use the claims adjustment tool on the secure Tufts Health Plan Provider portal. For additional information and instructions on claims submission, please refer to the Claim Requirements, Coordination of Benefits and Dispute Guidelines chapter of the Tufts Health Public Plans Provider Manual.