University of Maryland Capital Region Health, the group overseeing a new $543 million hospital under construction in Largo, named a new interim leader Friday to replace President and CEO Sherry Perkins, who is set to step down next week after less than a year in the job to take up another health care position in Delaware.
The Prince George's County health system — supported by the University of Maryland Medical System, which absorbed the long-suffering Dimensions Healthcare System — will see…