Hcsc Holiday Calendar 2025. Below, you’ll find the full list of these holidays and when they will be observed. To assist trading partners in planning for the 2025 calendar year, the following is a list of highmark's 2025 scheduled holidays.
View here the holidays in the united states in 2025,. Operation centers will be closed in observance of blue shield of california’s holiday schedule with the exception of individual and family plan (ifp) and medicare member services.