Medicare and B12 injections: Are They Covered? 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 Medicare Part B The Bottom Line 65Medicare.org B12 Shots Do You Need a Prescription? A Complete Guide Carter's Walk In + Urgent Care Understanding the B12 Vitamin Shot: Benefits, Risks, and Dosage Guide Does Your Medicare Plan Cover B12 Shots?