Yes, Medicare does cover the Zostavax vaccine. Medicare Part D, which is the prescription drug coverage, typically covers vaccines that are recommended by the Centers for Disease Control and Prevention (CDC) to prevent illness. The Zostavax vaccine is a CDC-recommended vaccine for the prevention of shingles, a painful rash caused by the varicella-zoster virus. As a result, Medicare Part D plans generally cover the Zostavax vaccine. However, it's important to note that coverage may vary depending on the specific Medicare Part D plan and the pharmacy you use. It's always a good idea to check with your specific plan to confirm coverage and any potential out-of-pocket costs. Medicare Advantage plans, which are private insurance plans that provide Medicare benefits, may also cover the Zostavax vaccine, but coverage may vary by plan. It's best to contact your Medicare Advantage plan directly to inquire about coverage for the Zostavax vaccine.