Medicare Advantage Open Enrollment 2024 Aetna. Aetna is one of the largest health insurance carriers offering medicare supplement, medicare advantage and medicare part d plans. Find medicare health and drug plans in your area and compare costs.

Aetna is one of the largest health insurance carriers offering medicare supplement, medicare advantage and medicare part d plans. Its open network medicare advantage ppo plans are available in certain markets and allow members to seek care at any provider in the country that accepts medicare without.