Your guide to enrollment dates
There are several times of the year when you can enroll in a Medicare plan. Each time period has different rules.
If you get coverage from an employer or group health plan, review the information they provided to see what options are available to you.
Initial enrollment period(collapsed)
Annual open enrollment period: October 15 to December 7(collapsed)
Special enrollment period(collapsed)
For Medicare Advantage & Prescription Drug Plans
For Medicare Supplement Plans
You can apply for a Medicare Supplement Insurance Plan at any time during the year as long as you’re enrolled in Medicare Parts A and B. You’ll have guaranteed acceptance if you’re eligible for your Medicare Supplement Open Enrollment Period or meet the requirements under your state's Guaranteed Issue Guidelines.
Aetna Medicare is a PDP, HMO, PPO plan with a Medicare contract. Our SNPs also have contracts with State Medicaid programs. Enrollment in our plans depends on contract renewal.
See Evidence of Coverage for a complete description of plan benefits, exclusions, limitations and conditions of coverage. Plan features and availability may vary by service area.