Nurse practitioners are advanced practice registered nurses that provide primary, acute, and specialty healthcare services to diverse populations. They typically need a master's degree to practice and can specialize in areas like family care, pediatrics, geriatrics, emergency medicine, and various medical/surgical specialties. Nurse practitioners are licensed to diagnose illnesses, treat conditions, order tests, prescribe medications, and provide health education to patients while collaborating with other healthcare professionals. Their responsibilities may vary depending on their specialty and state but generally include taking patient histories, ordering/interpreting diagnostic tests, developing treatment plans, performing procedures, diagnosing illnesses, and educating patients.