Top Stories for 2/18

This week: Mayo irks insurers by ceasing MA patient scheduling; Mercy locks down ICU after online attacks . Plus: VillageMD announces plans to buy chronic care management company Healthy Interactions . Links to the stories: Mayo Clinic halts scheduling of out-of-network Medicare Advantage patients 'Baseless attacks' online trigger lockdown at Oklahoma hospital ICU VillageMD buys chronic care management company Healthy Interactions