Yes, Zostavax is covered by Medicare. Specifically, it is covered under Medicare Part D, which is the prescription drug benefit. However, it is important to note that the coverage may vary depending on the specific Medicare plan you are enrolled in. It is always a good idea to check with your insurance provider to confirm coverage and any potential out-of-pocket costs. Additionally, you may need a prescription from your healthcare provider to receive the vaccine. Always consult with a healthcare professional before making any medical decisions.