Donald B.

Caremark is the worst mail order pharmacy I have ever dealt with. They repeatedly send mail complaining that: they can't reach any of my 3 doctors; they have rejected my prescription for unexplained reason; or that my insurer will no longer cover prescriptions I have taken for many years. Neither Express scripts nor Optim (United Healthcare' mail order pharmacy) have had these problems. Frankly, Caremark is a big pain in the rear end. They require high patient effort on a repeating basis to get common generic drugs that you have taken for years under Medicare Advantage plans. If you can find another mail order pharmacy, you will be a lot happier.