An On Call Nurse Practitioner (NP) is a healthcare professional who provides medical care and support outside of regular business hours, often during evenings, weekends, or holidays. They typically respond to urgent patient needs, offer telehealth consultations, or visit patients in person if necessary. Their responsibilities may include assessing symptoms, prescribing medications, coordinating follow-up care, and collaborating with physicians or healthcare teams. This role requires flexibility, strong clinical judgment, and the ability to handle a variety of medical situations efficiently.