Cyanocobalamin Medicare Coverage and Co Pay Details GoodRx 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 B 12 (Methylcobalamin) Therapy MedClub by Dr Jenn B12 Shots Do You Need a Prescription? A Complete Guide Carter's Walk In + Urgent Care Medicare Prescription Coverage: Medicare PDP Plans Medicare Explained Parts of Medicare Hale Health Benefits