From Modern Healthcare

“A recently unsealed False Claims Act lawsuit against CVS Health claims the company, through its pharmacy benefits manager unit, illegally billed Medicare for higher prices than it was actually paying pharmacies.” Senior actuary at Aetna, Sarah Behnke, estimates that CVS Caremark hid around $1.5 billion in just the 2014 calendar year. This is all while CVS and Aetna are in the middle of a $69 billion merger.