Some of the health care policies that went for sale on Maryland's insurance marketplace over the weekend won't cover care at Johns Hopkins Health System. UnitedHealthcare has a few plans that will not cover Johns Hopkins hospitals or physicians, the Baltimore Sun reported. In a statement, the insurer — one of region's largest — says the plans are options among its other offerings on the exchange, and that includes plans that do include Hopkins. This is where health care is going. It's similar to the networks Kaiser Permanente has been using for years.