Family members say Dr. Jose Alvarado, the chief of pediatrics at Peninsula Regional Medical Center, died of injuries sustained in a car accident. State police say Alvarado’s sports car slammed into the rear of a disabled tractor-trailer on Route 50 near Pittsville. Alvarado’s family issued a statement saying he died at the University of Maryland Shock Trauma Center in Baltimore where he was taken following the accident. Alvarado had been a doctor in Salisbury since 1988 and has served as a pediatrician for thousands of Lower Shore families.