Aetna to sell Medicare Supplement Plans in Florida Aetna (AET) announced that its subsidiary, Aetna Life Insurance Company, has been approved by Florida regulators to begin selling individual Medicare Supplement plans in the state. Beginning March 1, 2013, beneficiaries with original Medicare will be able purchase the plans directly from Aetna, either by phone or during a personal sales consultation with an Aetna sales representative. Eventually, the company plans to also offer the plans through brokers. Aetna Medicare Supplement plans help beneficiaries pay for some of the health care costs not covered by Medicare Part A or Part B. These include deductibles and coinsurance payments.