Grain of Salt department
According to an email ad I received hocking Integrating Wellness with Disease Management Strategies & Programs:
Health care organizations across the country are slashing unnecessary utilization and costs, increasing patient satisfaction, and improving health behaviors and outcomes with disease management programs targeted at high-cost, chronic illnesses.
Actually, the evidence is much more mixed. Disease management is a great concept, but it's not clear whether there's a return on investment for plans or employers that compensates them for the extra management cost.