A Neonatal Nurse Practitioner (NNP) is an advanced practice registered nurse (APRN) who specializes in the care of newborns, particularly those who are ill or premature. NNPs work in neonatal intensive care units (NICUs), delivery rooms, and follow-up clinics to provide comprehensive care to neonates and their families. They are highly trained to handle a range of complex medical conditions that affect newborns.