According to our online account, Express Scripts is covering Novolog. Our insurance plan totally changed, and the online account information reflects the new changes, so I am confident it is covered. And it is costing us less than 1/2 of what it had previously. (We had been paying 20% of the prescription costs and now we are paying a copay, which is why it's so much less.) WHEW! We never received a letter stating no coverage. We have Anthem Blue Cross Blue Shield PPO out of Ohio. It is a small consolation to the fact that our deductible and out of pocket maximums have more than doubled. I know this is not covered for the majority of ES customers, but if you have not received a letter, definitely check your account to see.