Insurers managed to cover more people with Medicare supplement (Medigap) insurance in 2017 while controlling benefits costs.
The number of people with Medigap coverage increased 3.8% between 2016 and 2017, to about 13 million, according to a new report from Mark Farrah Associates.
The ratio of medical claims to premiums fell just slightly, to 77.7%, from 77.%.
(Related: Medicare Supplement Use Rises Again: AAMSI)
UnitedHealth Group Inc. and Mutual of Omaha together accounted for about 43% of 2017 Medigap premium revenue.