RxAdvance, a full service Pharmacy Benefits Management company, announced Oscar Salazar, co-founder of Uber, and Walter Jin, founder of Carlyle Healthcare Group, have invested in Series-A funding round and join the RxAdvance board. Oscar Salazar is a co-founder of Pager, an innovative on-demand healthcare service that utilizes a mobile patient engagement platform to connect patients with the right type of care. Prior to Pager, Oscar was a founding partner and Chief Technology