Anthem Blue Cross Blue Shield ends coverage for Mount Sinai medical office visits

Anthem Blue Cross Blue Shield will no longer cover visits to Mount Sinai medical offices starting January 1, 2026. This change affects over 9,000 Mount Sinai physicians, making them out-of-network for Anthem-insured patients due to an expired contract, with hospital coverage extended for 60 days. Negotiations center on reimbursement rates, but continuity of care protections may still cover patients with serious ongoing treatments.