Advising Medicare Part D subscribers to stay away from this Part D prescription provider. This company is a nightmare! I have been trying for one week now to fill my prescriptions and to no avail. Rating this company one star, is too generous for them. Their preferred mail order pharmacy is horrible and why they have a contract with Medicare is beyond me? They quoted me prescription prices that are not even in my plan, and I get no where trying to point out otherwise. I have contacted Social Security Administration and Medicare. I have enrolled with a new provider effective February 1st, but in the meantime, I am stuck with Envision, trying to refill my prescriptions!