Physician Assistant (PA)

Physician assistants (PAs) are advanced practice providers who examine patients, diagnose conditions, prescribe medications, order and interpret diagnostic tests, assist in surgeries, and develop treatment plans. PAs practice in every medical specialty and every clinical setting, from primary care clinics to operating rooms to emergency departments. The PA profession was created in the 1960s to address physician shortages, and it has grown into one of the most versatile and in-demand healthcare careers in the country. PAs practice under the supervision or collaboration of a physician, though the degree of autonomy varies by state, specialty, and practice setting.

Education Pathway

Becoming a PA requires approximately 6 to 7 years of post-secondary education. Undergraduate (4 years): Complete a bachelor’s degree with prerequisite courses similar to pre-med (biology, chemistry, anatomy, physiology, microbiology, statistics). Specific prerequisites vary by program, so check the requirements for each PA program you plan to apply to. PA Program (2 to 3 years): PA programs award a master’s degree (typically a Master of Medical Science or Master of Physician Assistant Studies). The curriculum includes a didactic phase (classroom-based medical education in anatomy, pharmacology, pathophysiology, clinical medicine) followed by a clinical phase (supervised rotations in multiple specialties similar to medical school clerkships). Certification: After graduating, you must pass the Physician Assistant National Certifying Exam (PANCE®) administered by the NCCPA to practice. PAs must recertify every 10 years and complete continuing medical education throughout their careers. See our PANCE® prep guide.

Prerequisites beyond coursework: PA programs also require direct patient care experience (typically 500 to 3,000+ hours, depending on the program). Common pre-PA clinical roles include EMT, CNA, medical assistant, paramedic, scribe, and nursing assistant. Many programs also require or prefer experience in research, community service, and healthcare leadership. The average age of PA school matriculants is approximately 25 to 26, reflecting the clinical experience most programs expect before enrollment. Apply through CASPA® (the Centralized Application Service for Physician Assistants). See our CASPA® guide.

What PAs Do

PAs perform many of the same clinical tasks as physicians. In a primary care setting, a PA might see 15 to 25 patients per day, managing acute and chronic conditions, ordering lab work and imaging, prescribing medications, and counseling patients on lifestyle modifications. In a surgical setting, a PA assists in the operating room, manages pre-operative and post-operative care, and performs procedures under the surgeon’s supervision. In an emergency department, a PA evaluates patients, orders tests, performs procedures (suturing, splinting, incision and drainage), and makes disposition decisions. PAs can specialize in any area of medicine (surgery, emergency medicine, dermatology, orthopedics, cardiology, psychiatry) without completing a formal residency, though some complete optional post-graduate PA residencies for additional training.

One of the PA profession’s distinguishing features is lateral mobility: PAs can change specialties during their careers without additional formal training. A PA who works in orthopedics for 5 years can transition to emergency medicine or dermatology by finding a new position and learning on the job. Physicians, by contrast, are generally locked into their residency-trained specialty. This flexibility is a significant advantage for PAs who want career variety.

Salary and Job Outlook

The median annual salary for PAs is approximately $130,000, according to the Bureau of Labor Statistics. Salaries range from approximately $95,000 for entry-level positions in lower-cost areas to $180,000+ for experienced PAs in surgical specialties, emergency medicine, or high-cost urban areas. The PA profession is projected to grow 27 percent through 2032, significantly faster than the average for all occupations, driven by physician shortages, healthcare expansion, and the cost-effectiveness of PAs relative to physicians. PA program tuition averages approximately $90,000 to $130,000 for the full program, a substantial investment but significantly less than the combined cost of medical school and residency.

Advantages and Challenges

Advantages: Shorter training (6 to 7 years total vs. 11 to 15+ for physicians), strong salary relative to training investment, lateral mobility between specialties, high job satisfaction, excellent job market, and a balanced scope of practice that provides clinical autonomy while maintaining a collaborative relationship with physicians.

Challenges: PAs practice under physician supervision or collaboration (the degree of autonomy varies by state and can be frustrating for some PAs), the scope of practice is more limited than that of physicians (PAs cannot practice independently in all states, and some procedures require physician presence), career ceiling in some specialties (PA salaries plateau earlier than physician salaries), and the high clinical experience requirement for admission can delay entry into PA school. See our physician vs. PA vs. NP comparison for a detailed side-by-side analysis.

Getting Started

Middle school: Explore healthcare careers and build science foundations. High school: Take science courses, begin volunteering, and consider CNA or EMT certification for clinical hours. Undergraduate: Complete prerequisites, accumulate direct patient care experience (1,000+ hours recommended), build relationships with PA or physician mentors, and apply through CASPA®.

The Clinical Experience Requirement in Detail: PA programs require significant direct patient care experience (typically 500 to 3,000+ hours) before matriculation. This requirement is one of the defining features of PA education: PA programs want students who have already been in the clinical trenches and understand what healthcare delivery involves at the ground level. The most common pre-PA clinical roles are EMT/Paramedic (provides the most intensive emergency and pre-hospital experience), CNA/Patient Care Technician (provides sustained bedside patient care in hospitals and nursing homes), Medical Assistant (provides clinical and administrative experience in outpatient settings), Medical Scribe (provides documentation experience and exposure to clinical decision-making), Phlebotomist (provides direct patient contact and procedural skill), and Volunteer/Intern in clinical settings (provides patient interaction but is generally viewed as less impactful than paid clinical roles because paid roles involve greater responsibility). If you are considering PA school, start accumulating patient care hours as early as possible. Many students work in clinical roles for 1 to 2 years after college graduation before applying, which is why the average PA school matriculant is 25 to 26 years old.

PA vs. NP vs. Physician: Students often compare these three roles when deciding their career path. The key differences are training length (PA: 6-7 years total; NP: 6-8 years total; physician: 11-15+ years total), training model (PAs are trained in a medical model similar to physicians; NPs are trained in a nursing model that emphasizes wellness and patient education), scope of practice (physicians have the broadest scope; PAs and NPs have somewhat more limited scopes that vary by state), lateral mobility (PAs can change specialties without retraining; physicians generally cannot; NPs can change within their certification area), and compensation (physicians earn the most; PAs and NPs earn comparable salaries that are lower than physicians but achieved with less training time and debt). See our detailed physician vs. PA vs. NP comparison for a comprehensive side-by-side analysis.

The Future of the PA Profession: The PA profession is undergoing significant changes. The American Academy of Physician Assistants has advocated for the title change from “physician assistant” to “physician associate” in several states, reflecting the profession’s evolving role as collaborative partners rather than assistants. Optimal Team Practice (OTP) legislation in some states allows PAs to practice with greater autonomy, similar to NP full practice authority. The scope of PA practice continues to expand as healthcare systems seek cost-effective ways to address physician shortages and increasing patient demand. These changes make the PA profession an increasingly attractive option for students who want clinical practice with a shorter training timeline.

References

Bureau of Labor Statistics. “Physician Assistants.” BLS, 2025. https://www.bls.gov/ooh/healthcare/physician-assistants.htm. Accessed March 2026.
National Commission on Certification of Physician Assistants (NCCPA). “About PAs.” NCCPA, 2025. https://www.nccpa.net/. Accessed March 2026.