Level 1 Per Diem nurses must make themselves available each year to work for at least two (2) special days; "special days" for the day shift are defined as: Easter, Mother's Day, Halloween, the day after Thanksgiving, the day before Christmas and the day after Christmas; "special days" for the night shift (starting at 7:00 p.m. We assembled more than 14,000 colleagues, including over 2,850 skilled and compassionate doctors, physician assistants, and nurse practitioners equipped with the latest technologies, treatments, and techniques to provide exceptional care close to home.