John Kreger, principal, joined William Blair & Company in 1999 as a health care services analyst. Mr. Kreger provides equity research coverage in the areas of pharmaceutical outsourcing and health care distribution. Previously, Mr. Kreger worked as a health care services analyst at Vector Securities International for five years, where his research coverage encompassed disease management, managed care, and pharmaceutical outsourcing. Prior to becoming an analyst, he was a biotechnology research associate at Vector for three years. Mr. Kreger received his B.B.A. from the University of Michigan and also holds his M.B.A. from the University of Chicago.