Anthem Blue Cross has reached a new three-year agreement through 2028 with Mount Sinai Health System that returns its hospitals, physicians and other care providers to Anthem’s network.
Important Updates:
- Effective March 4, 2026, Mount Sinai facilities are within the Anthem Blue Cross network.
- Effective January 1, 2026, Mount Sinai physicians are considered within the Anthem Blue Cross network.
- If you submitted a medical claim while Mount Sinai physicians and facilities were non-network, they will now be reprocessed as network claims and subject to network cost-sharing (deductibles, co-pays and co-insurance). There is no action that is required from you.
For questions regarding this information, please call the Health Plan’s Participant Services Department at (323) 866-2200, Ext. 401. For more information on the agreement, visit https://www.anthem.com/update/mountsinai.
