A nurse practitioner (NP) is a registered nurse with advanced graduate education who can diagnose conditions, prescribe medications, and manage patient care, often serving as a person’s primary healthcare provider. NPs currently earn a median salary of $129,210 per year, and demand for them is projected to grow 40% between 2024 and 2034, making it one of the fastest-growing roles in healthcare.
What Nurse Practitioners Actually Do
NPs function much like primary care doctors in day-to-day practice. They take medical histories, perform physical exams, order and interpret lab tests, diagnose both acute and chronic conditions, prescribe medications (including controlled substances in most states), and coordinate ongoing care. The key distinction from a standard registered nurse is that NPs are legally authorized to perform functions that would otherwise be considered the practice of medicine, including diagnosing mental or physical conditions and prescribing drugs.
If you see an NP as your primary care provider, your visits will look similar to visits with a physician. You’ll go through the same intake process, receive the same types of exams, and leave with prescriptions or referrals as needed. NPs assume full responsibility for continuity of care regardless of whether you’re healthy or managing a disease.
In states that grant NPs “full practice authority,” they can evaluate patients, diagnose, and treat without physician oversight. Other states require a collaborative agreement with a physician. The practical difference for patients is minimal in most cases, but it affects where NPs can set up independent practices, particularly in rural or underserved areas. Research published in Medical Care found that states granting full practice authority see modest improvements in chronic disease outcomes, with lower hospital readmission rates for conditions like diabetes, high cholesterol, and high blood pressure, especially in rural counties.
How to Become a Nurse Practitioner
The path to becoming an NP requires several stages. You first need a Bachelor of Science in Nursing (BSN) and an active registered nurse license. From there, you complete a graduate program, either a master’s or doctoral degree, focused on a nurse practitioner track. These programs build on undergraduate nursing foundations with advanced coursework in physical diagnosis, psychosocial assessment, and clinical decision-making.
After finishing the graduate program, you must pass a national board certification exam. This certification is required for state licensure and for credentialing with insurance companies. NPs also need a DEA registration to prescribe controlled substances, granted to practitioners who are authorized by their state to do so.
NP programs typically include 500 to 750 hours of direct patient care during training. That’s substantially less than the 12,000 to 16,000 clinical hours physicians accumulate through medical school rotations and residency. This difference in training volume is the main point of debate between the two professions, though NPs enter their graduate programs with prior nursing experience that physicians-in-training don’t have.
Eight Major Specializations
NPs don’t practice as generalists by default. They certify in one of eight population-focused specialties:
- Family nurse practitioner: treats patients of all ages, from newborns to older adults, and is the most common specialty
- Adult-gerontology primary care: focuses on routine and chronic care for adults and aging populations
- Adult-gerontology acute care: manages complex, rapidly changing conditions in hospitalized adults
- Pediatric primary care: handles wellness visits, vaccinations, and illness management for children
- Pediatric acute care: treats children with serious, acute, or critical illnesses
- Psychiatric-mental health: diagnoses and treats mental health conditions, including prescribing psychiatric medications
- Neonatal: cares for premature and critically ill newborns, typically in hospital intensive care units
- Women’s health: provides reproductive, gynecological, and preventive care for women across the lifespan
Your specialty determines the certification exam you take, the patients you’re qualified to treat, and the settings where you’ll work. A family NP might run an independent clinic in a small town. A neonatal NP works in a hospital NICU. A psychiatric-mental health NP might see patients via telehealth for medication management and therapy.
How NPs Compare to Physicians
The overlap between NPs and physicians is largest in primary care. Both can serve as your main healthcare provider, manage chronic conditions, order imaging, and prescribe the full range of medications. For routine care, annual physicals, common infections, blood pressure management, and similar concerns, the experience of seeing an NP is largely interchangeable with seeing a physician.
The differences matter more in complexity. Physicians complete significantly more clinical training hours and broader exposure to rare and complicated cases. For highly specialized problems, surgical decisions, or unusual diagnostic challenges, physicians (and particularly specialists) bring deeper training. NPs in acute care specialties work alongside physicians in hospitals and handle complex patients, but typically within a team structure.
One practical difference worth knowing: Medicare reimburses NP services at 85% of the physician rate. This doesn’t affect your copay in most cases, but it shapes where NPs practice and how healthcare systems deploy them. Private insurance plans generally credential NPs the same way they credential physicians for primary care visits.
Why NP Demand Is Surging
The 40% projected growth rate for NPs over the next decade reflects several converging pressures. The U.S. faces a persistent shortage of primary care physicians, particularly outside major cities. NPs can fill that gap with fewer years of training and at lower cost to healthcare systems. An aging population needs more chronic disease management, preventive care, and routine visits, all areas where NPs practice effectively.
States have been steadily expanding NP practice authority over the past two decades, removing barriers that previously limited where and how independently NPs could work. This legislative trend, combined with the training pipeline producing more NP graduates each year, means you’re increasingly likely to see an NP as your primary provider, whether at a clinic, urgent care center, retail health location, or specialty practice.