A nurse practitioner (NP) is an advanced practice registered nurse licensed to diagnose conditions, order tests, prescribe medications, and manage patient care independently or collaboratively with physicians. NPs complete graduate-level education beyond their registered nursing degree, earning either a Master of Science in Nursing (MSN) or a Doctor of Nursing Practice (DNP). With a median salary of $129,210 per year and projected job growth of 35% over the next decade, it’s one of the fastest-growing roles in healthcare.
What Nurse Practitioners Actually Do
NPs function much like primary care physicians in many settings. Their scope of practice includes assessing patients, ordering and interpreting diagnostic and laboratory tests, making diagnoses, and initiating treatment plans. They prescribe both medications and non-drug therapies, coordinate care across specialists, and counsel patients and families on managing health conditions.
The range of care NPs provide spans acute illnesses (like infections or injuries), chronic disease management (like diabetes or hypertension), health promotion, disease prevention, and patient education. In many states, NPs practice with full independence, meaning they don’t need a supervising physician to see patients or write prescriptions. Other states require a collaborative agreement with a physician, though the day-to-day work looks similar regardless of the legal framework.
Education and Clinical Training
Becoming a nurse practitioner starts with earning a Bachelor of Science in Nursing and working as a registered nurse. From there, NPs complete a graduate program, either a master’s degree or a doctoral degree. The field is gradually shifting toward the DNP as the standard, though both pathways lead to the same clinical role.
NP programs require a minimum of 500 direct patient care hours under supervision, though many schools exceed that threshold. The current standard set by the National Task Force on Quality Nurse Practitioner Education calls for 750 direct patient care hours, and the average across DNP programs is roughly 791 hours of supervised direct care plus about 170 hours of indirect clinical work like care coordination and DNP project activities.
For context, these clinical hours are significantly fewer than what physicians accumulate. Physician assistant programs average about 2,000 clinical hours, and medical school graduates log an estimated 5,000 hours before earning their degree. Physicians then complete residency training, adding another 13,500 to 18,000 clinical hours before practicing independently. NPs offset some of this difference through their prior nursing experience, which often includes years of direct bedside patient care before entering graduate school.
Specialty Tracks
NP education is organized around six population focus areas, and graduates must choose one before entering their program. Each track prepares the NP for a specific patient population:
- Family health (across the lifespan): The most common track, covering patients of all ages in primary care settings.
- Adult-gerontology: Available as either a primary care or acute care focus, serving adults and older patients.
- Pediatrics: Also split into primary care and acute care tracks for infants, children, and adolescents.
- Psychiatric/mental health (across the lifespan): Focused on diagnosing and treating mental health conditions, one of the fastest-growing specialties due to provider shortages.
- Neonatology: Caring for critically ill or premature newborns in hospital settings.
- Women’s/gender-related healthcare: Covering reproductive health, gynecologic care, and related conditions.
After completing their program, NP graduates must pass a national board certification exam specific to their population focus. You can’t practice as a family NP, for example, without passing the family nurse practitioner certification exam.
Certification and Licensing
Two major organizations certify nurse practitioners in the United States: the American Nurses Credentialing Center (ANCC) and the American Academy of Nurse Practitioners Certification Board (AANPCB). Both offer nationally recognized exams, and the one you take depends on your specialty and employer preferences.
NP certification is valid for five years. To renew, you must hold an active nursing license and complete professional development requirements during each certification cycle. Renewal applications can be submitted up to one year before the expiration date. Both certifying bodies are accredited by national oversight organizations that ensure exam quality and standards.
Beyond national certification, each state issues its own NP license with specific rules about prescriptive authority, practice independence, and supervision requirements. These vary widely. Some states grant NPs full practice authority from day one, while others require a transition period or ongoing physician collaboration.
Where Nurse Practitioners Work
NPs practice in nearly every healthcare setting. You’ll find them in primary care clinics, urgent care centers, hospitals, specialty practices, mental health facilities, nursing homes, school-based health centers, and retail clinics. In rural and underserved communities, NPs often serve as the primary or sole healthcare provider, filling gaps where physician recruitment has been difficult.
The role is expanding quickly. Employment for nurse practitioners is projected to grow 35% from 2024 to 2034, a rate far exceeding the average for all occupations. This growth is driven by an aging population, increased emphasis on preventive care, and ongoing physician shortages in primary care and mental health.
How NPs Differ From Physicians and PAs
The most common question people have is how a nurse practitioner compares to a doctor. The practical overlap is significant, especially in primary care. Both can diagnose, treat, and prescribe. The core differences come down to training pathway and depth of clinical hours before independent practice.
Physicians complete four years of medical school followed by three to seven years of residency, accumulating roughly 16,000 or more supervised clinical hours. NPs typically enter practice with around 750 to 800 clinical hours from their graduate program, supplemented by whatever nursing experience they brought in. Physician assistants fall in between, with about 2,000 clinical hours from their programs. Unlike physicians, neither NPs nor PAs are required to complete a residency, though voluntary NP residency programs are becoming more common.
The nursing model also differs philosophically from the medical model. NP training emphasizes a holistic, patient-centered approach that integrates health promotion and disease prevention alongside diagnosis and treatment. In practice, this often translates to longer appointment times and a strong focus on patient education and self-management support.
In terms of compensation, nurse practitioners earned a median annual wage of $129,210 in 2024. That’s less than most physicians earn but reflects a shorter and less costly educational path, with many NPs entering the workforce with significantly less student debt than their physician counterparts.