An advanced nurse practitioner (ANP), formally called an advanced practice registered nurse (APRN), is a registered nurse with at least a master’s degree who can independently evaluate patients, diagnose conditions, order tests, and prescribe medications. In 26 U.S. states, they have full practice authority, meaning they provide care without physician oversight. In the remaining states, varying levels of collaboration or supervision with a physician are required.
What They’re Trained to Do
The core distinction between a standard registered nurse and an advanced nurse practitioner is autonomy. A registered nurse works under a physician’s direction, carrying out prescribed treatment plans. An ANP functions more like an independent provider: they conduct physical exams, make diagnoses, interpret lab work and imaging, create treatment plans, and prescribe medications, including controlled substances. In many settings, they serve as a patient’s primary care provider.
Their training follows a nursing model, which emphasizes whole-person care, disease prevention, and health education alongside clinical diagnosis and treatment. This differs from the strictly disease-focused medical model, though in practice, ANPs handle the same types of visits and conditions you’d see a physician for, particularly in primary care, urgent care, and specialty clinics.
Education and Certification Requirements
Becoming an ANP requires a master’s degree in nursing (MSN) at minimum, though a growing number of programs now offer a Doctor of Nursing Practice (DNP) as the terminal degree. Before entering a graduate program, candidates must already hold a bachelor’s degree in nursing and an active RN license. Graduate programs typically take two to four years depending on whether the student attends full-time and whether they’re pursuing a master’s or doctorate.
Unlike physician assistants, who train as generalists and can switch specialties freely, nurse practitioners choose a specialty before they even apply to graduate school. Each program trains students within a specific population focus, and graduates must pass a national board certification exam in that specialty to practice. The American Nurses Credentialing Center (ANCC) is one of the major certifying bodies, though several others exist depending on the specialty. Certification requires renewal on a regular cycle, with continuing education and clinical practice hours.
Specialty Areas
The national consensus model for APRN regulation defines six population-focused specialties:
- Family/Individual Across the Lifespan: the most common track, covering patients of all ages in primary care settings
- Adult-Gerontology: focused on adults and older adults, available in both primary care and acute care tracks
- Pediatrics: covering infants through young adults
- Neonatal: specializing in newborn intensive care
- Women’s Health/Gender-Related: focused on reproductive and gynecological care
- Psychiatric-Mental Health: providing therapy, psychiatric evaluations, and medication management for mental health conditions
Within these tracks, ANPs can further subspecialize. A family nurse practitioner might focus on dermatology or cardiology, for example, by completing additional training and obtaining subspecialty certification.
Where They Work
Primary care offices and outpatient clinics employ the largest share of nurse practitioners, but the role extends well beyond that. ANPs work in emergency departments, hospitals, nursing homes, school health programs, home health settings, retail clinics, and private practices. Some specialties are defined almost entirely by the setting: emergency medicine NPs, hospitalists, and school health NPs all fall under this category. In rural and underserved areas especially, nurse practitioners often serve as the only healthcare provider available, making them a critical part of the primary care workforce.
How They Compare to Physicians and PAs
The question most people have is whether seeing a nurse practitioner is meaningfully different from seeing a doctor. Research suggests the clinical quality is comparable. A systematic review published in BMJ Open analyzed trials comparing nurse practitioner care to physician care in primary and ambulatory settings. Across those trials, patient outcomes were equivalent in nearly every measure, with a small number of outcomes actually favoring nurse practitioners. Patient satisfaction was also slightly higher with NP care, based on a meta-analysis of over 1,500 patients.
The cost picture is also favorable. That same review found nurse practitioner consultations cost an average of about €6.40 less per visit than physician consultations, a modest but consistent difference that adds up across a health system.
Physician assistants occupy similar clinical territory but come from a different training tradition. PA programs are modeled on medical school curricula, teaching a broad, generalist approach with clinical rotations across multiple specialties. This means PAs can shift between specialties throughout their career without retraining. Nurse practitioners, by contrast, are trained in a specific population focus from the start and must pursue additional certification to change specialties. The practical difference for patients is minimal in most cases, but the philosophical difference matters: NP training is rooted in nursing’s emphasis on prevention, patient education, and holistic care, while PA training leans more heavily on the biomedical model.
Salary and Job Growth
The median annual salary for nurse practitioners was $129,210 as of May 2024, according to the Bureau of Labor Statistics. That figure varies significantly by specialty, geography, and setting. Psychiatric-mental health NPs and those in acute care or surgical specialties tend to earn more than primary care NPs.
Employment growth for nurse practitioners is projected at 40 percent from 2024 to 2034, translating to roughly 128,400 new positions. That rate is far above the average for all occupations, driven by an aging population, physician shortages in primary care, and the expansion of full practice authority in more states. For context, the field is expected to grow from about 320,400 positions to nearly 449,000 within the decade.