Central Ohio Primary Care Physicians and five Medicare Advantage health plans have agreed to a pilot program that will pay doctors bonuses to keep their most frail patients healthier and out of the hospital. Central Ohio CEO William Wulf said average hospital stays can cost at least $10,000 and hospitalists in the practice estimate 25% of admitted patients could have been cared for in less expensive settings. "What if that hospitalist was in a shared savings program for that $10,000?" Wulf said. "That's where we need to go, that's where we're going with population health."