OPEN MINDS, The Behavioral Health & Social Service Industry Analyst Industry News On October 20, 1998, Sachs Group, a provider of strategic planning and marketing information for health care, projected a potential 18% decline in inpatient days within five years if all Medicare, Medicaid, and private patients shift into HMO plans. This directly translates into an 18% decrease in hospital beds needed by 2002. The projection is based on an analysis made by the most recent release of Network Sizing, a payer-driven utilization-modeling tool developed by Sachs Group and . . .