The case accuses UnitedHealth Group Inc's Optum unit, CVS Health Corp's CVS Caremark and Cigna Corp's ExpressScripts of unfairly excluding lower cost insulin products from lists of drugs ...
The timing is anything but a coincidence. The three largest PBMs – ExpressScripts, CVS Caremark, and OptumRx – control approximately 80% of the prescription drug market. With such power ...