New York City-based Mount Sinai physicians are no longer in Anthem’s network as of Jan. 1, according to both organizations.
The contract expired Dec. 31, 2025, following negotiations which began in the spring. All Mount Sinai facilities will go out of network March 1, but Medicare Advantage beneficiaries already lost access. Although some employer-sponsored plans are exempt from the changes, commercial, Con Edison, state and federal plans are affected.
In a Dec. 17, 2025, open letter, Anthem said the health system “wants to charge patients 50% more over the next three years.”…