Health insurers Cigna, CVS Health, Humana Centene and UnitedHealth on Tuesday released details on their government-backed health insurance plans for next year for people aged 65 and above.The announcements come ahead of the beginning of enrollment for Medicare Advantage plans on Oct.

All Humana Medicare Advantage and Prescription Drug Plan members have the option to use CenterWell Pharmacy, a home delivery pharmacy that helps customers manage their prescription and over-the-counter medications with convenient, safe and on-time deliveries by mail to their front doorsteps or locations of their choice.

If affected, seniors should receive a letter alerting them about the next steps and how to enroll in a new plan.

As some Medicare Advantage carriers withdraw from certain locations, beneficiaries face important decisions about their health care coverage. Jae Oh, author of "Maximize Your Medicare," explains your options.