by Carina Belles

From 2017 to 2018, Aetna Inc. increased its Medicare Advantage membership by 18.9%, to 1.76 million lives. This trend will likely continue into 2019, as the insurer undertakes its largest-ever expansion into the market, adding 358 new counties. Aetna is currently ranked No. 3 in national MA market share, behind UnitedHealthcare and Humana Inc.

NOTE: Aetna did not experience membership gains between 15,000 and 20,000 lives in any state from 2017 to 2018.

SOURCE: DHP, AIS’s Directory of Health Plans