Medicare Open Enrollment Period

The Medicare Annual Open Enrollment period for 2027 coverage runs from Thursday, October 15, through Monday, December 7. This period gives you an opportunity to adjust your Medicare plan and choose one that best suits your needs. You can also switch to Original (traditional) Medicare during this period.

As you evaluate the options available to you, keep in mind that, in addition to many Medicare Advantage plans, Mount Sinai is always in-network with Original (traditional) Medicare and all Medicare supplement plans.

For information on Medicare Advantage plans that Mount Sinai will participate with in 2027, please view the grid below.

Mount Sinai is pleased to announce it will be participating with Devoted Health starting Friday, January 1, 2027.  Devoted Health is new to New York City for 2027 and their plans are available to residents of Brooklyn, Queens, Nassau County, and Staten Island. Devoted Health anticipates expanding into Manhattan and other areas in 2028.

Need Help?

To talk to someone about your Medicare options for 2027, please consider calling Chapter, an independent, licensed health insurance broker, whose experts can walk you through potential choices and help you enroll in new coverage if you wish.   

• You can learn more by calling Chapter at 1-800-434-9925 or visiting AskChapter.org/partners/Mount-Sinai.  

Call Medicare at 1-800-MEDICARE (1-800-633-4227) for assistance with switching plans when the Annual Enrollment period begins.  You can also visit Medicare's website at Medicare.gov and use the Plan Finder tool to compare available Medicare plans.

Mount Sinai-Participating Medicare Advantage Plans for 2027

Last Updated 10/13/2026