Job Title - Nurse Practitioner - NSICU Night Shift A nurse practitioner (NP) as described in Title VIII, Article 139 section 6910 of the New York Education Law is a RN who has earned a separate certification as an NP through advanced clinical nursing education in a distinct specialty area of practice. Nurse practitioners are independent practitioners who diagnose, treat, and prescribe for a patients condition that falls within their specialty area of practice.