The 2018 Express Scripts Medicare Part D (PDP) plan pharmacy search tool (and formulary search tool) can be found here:
(1) First, enter your ZIP Code (such as 11001 for Nassau County, NY) (choose county if necessary).
(2) Select the Express Scripts Medicare Part D prescription drug plan (PDP) "Find Pharmacy" or "Find Drug" button
(3) Notice on the pharmacy search results page that the "green-colored" flags next to the pharmacy name are for pharmacies with Preferred Cost Sharing and the blue-colored flags next to the pharmacy name are for pharmacies with Standard Cost Sharing
In past years, Express Scripts noted on their website that they have a pharmacy network of 66,000 pharmacies (plus home delivery) and the plan does utilize preferred pharmacy pricing.
Meaning: you will pay less for your formulary medications at one of Express Scripts preferred network pharmacies.
If you need more assistance finding a preferred pharmacy in your area, you can call Express Scripts at 1-866-477-5703 (TTY users:1.800.716.3231) (8:00 a.m. to 8:00 p.m., 7 days a week, except Thanksgiving and Christmas).