CHARLOTTE, N.C. & TORRANCE, Calif.--(BUSINESS WIRE)--Premier, Inc. (NASDAQ: PINC), a leading technology-enabled healthcare performance improvement company, today announced that it has entered a five-year group purchasing agreement with Premier Infusion and Healthcare Services, Inc. (Premier Infusion and HCS). Premier Infusion and HCS is a closed-door infusion pharmacy based in Torrance, California, serving all counties in California as well as Arizona, Colorado, Idaho, Illinois, Nevada and Wash. ...