Provider-led insurance plans may be the wave of the future, or a reprise of the past. According to a new report by McKinsey & Co., hospital systems looking to replicate some of the 1990s-era successes of Intermountain Healthcare, Geisinger or University of Pittsburgh Medical Center should note that market conditions have to be all but perfect for them to succeed. "If new entrants are not deeply familiar with the challenges they are likely to face and the factors required to win--and if they do not know how to position the owned health plan in their specific market--success will likely be elusive," the report stated. Read the full report at FierceHealthcare