1. A computer implemented method for generating a risk index for an individual using said individual's pharmacy claims, said method comprising the steps of: (1) generating, by a computer, a raw risk index indicative of at least one of said individual's medical costs, acute medical conditions, and variation in medical costs, by using said pharmacy claims; and (2) modifying, by the computer, said raw risk index in accordance with a compliance medication score indicative of said individual's compliance with prescribed pharmaceuticals, to thereby generate said risk index.