Princeton HealthCare System and its affiliates, including University Medical Center of Princeton, Princeton House Behavioral Health, Princeton HomeCare and the Princeton Medicine physician network, are now part of the University of Pennsylvania Health System, effective today.

The plan to join Penn Medicine was announced in December 2016.

The hospital and its affiliates will change their names as part of the completion of the transaction. The system will be Penn Medicine Princeton Health, and the hospital’s new name will be Penn Medicine Princeton Medical Center.

The Princeton facility will be the sixth acute care hospital in the system.