1. A method comprising: utilizing a memory and at least one processor coupled to said memory to perform a method comprising: obtaining a plurality of actual medical treatment outcome data points comprising actual outcomes for a plurality of episodes of a medical treatment process given to one or more patients; obtaining a practitioner entity-independent baseline outcome for said process, wherein said practitioner entity-independent baseline outcome represents the expected outcome for a patient; for each given one of said actual outcome data points, equating said given one of said actual outcome data points to said practitioner entity-independent baseline outcome multiplied by a plurality of unknown participating practitioner entity outcome indices for each of a plurality of participating practitioner entities, each of said participating practitioner entity outcome indices being raised to an exponent comprising a corresponding one of a plurality of unknown participating practitioner entity type indices, to obtain a plurality of equations, wherein: the practitioner entity outcome indices comprise an indication of the performance level of a practitioner with regard to a specific outcome; the practitioner entity type indices comprises an indication of the degree of impact of a particular practitioner type; and solving said plurality of equations to obtain estimated values of said unknown participating practitioner entity outcome indices and estimated values of said unknown participating practitioner entity type indices to provide a Practitioner Value Assessment Tool, configured to rate and rank participating practitioners individually or in groups in their contribution to an outcome of a medical treatment process, where each individual participating practitioner has a different skill set and contributes to a different part of the medical treatment process.