1) Harvoni® 2)Viekira Pak™ 3)Zepatier™ (The addition of Ribavirin and the length of treatment will be determined by the provider). In Phase 2 of this study, consented subjects will be randomized to 1 of 2 FDA approved HCV treatments: 1)1) Harvoni® or 3)Zepatier™. Both Phase 1 and Phase 2 subjects will have up to 1 tablespoon of blood drawn for HCV resistance testing and future biorepository testing (if subject provides additional consent). The results of testing will determine whether a genotype 1a subject will be provided 12 or 16 wks of Zepatier (if randomized to Zepatier).