Does Your Medicare Plan Cover B12 Shots? Medicare Parts Parts A, B, C, D + Video Explainer Understanding Medicare drug coverage is essential. Here's a brief overview: Part A covers medications during hospital stays or skilled nursing facilities. Part B includes drugs supplied by your healthcare provider or at Does Medicare Cover B12 Injections? Here's What to Know Medicare Part A vs B: Which One is Right for You? Boomer Benefits What Does Medicare Actually Cover? Haven Shield Insurance