"What does a PA do?" The answer is far broader than most people expect.

A Master of Physician Assistant Studies prepares you for one of healthcare's most versatile roles. Physician assistants work in emergency departments, surgical suites, primary care clinics, and specialty practices. They diagnose illness, manage treatment, and build lasting relationships with patients.

This path fits people starting out in healthcare. It also fits career changers who want meaningful clinical work. Physician assistant graduate programs welcome both.

What Can You Do with an MPAS Degree?

An MPAS degree opens doors across nearly every area of medicine. Here is what graduates typically gain:

  • Clinical authority to diagnose, treat, and prescribe within a collaborative agreement.
  • Setting flexibility across hospitals, clinics, specialty offices, and community health centers.
  • Specialty mobility to change practice areas without returning to school.
  • Strong demand in a profession the federal government projects will grow quickly.
  • Public health impact in communities facing provider shortages.

Understanding the Physician Assistant Role

A physician assistant is a licensed clinician educated in the medical model. They examine patients, order and interpret tests, and develop treatment plans. Many serve as a patient's principal healthcare provider.

PAs train to care for people across the lifespan. That breadth is what makes the role so adaptable.

Scope of Practice

Scope of practice describes what a clinician is legally permitted to do. For PAs, it varies by state and by practice agreement.

Most PAs can diagnose conditions, prescribe medication, and perform procedures. They practice with real autonomy while collaborating with physicians and other team members. Some states grant broader prescribing authority than others.

Check your state's rules early if you plan to relocate after graduation.

How PAs Differ from Physicians and Nurse Practitioners

PAs complete a master's degree, typically in two to three years. Physicians complete medical school plus a residency, which takes far longer.

Nurse practitioners train in the nursing model and often specialize during their program. PAs train in the medical model, which is generalist by design. That generalist foundation is why PAs can switch specialties so readily.

What You Study in Physician Assistant Graduate Programs

Every physician assistant program blends classroom science with supervised clinical practice experience. The first phase covers medical science, patient assessment, and clinical reasoning.

Core coursework usually includes:

  • Human anatomy, physiology, and pathophysiology
  • Pharmacology and clinical therapeutics
  • Clinical medicine across organ systems
  • Behavioral medicine and psychiatry
  • Medical ethics, health equity, and public health

Clinical rotations follow. Students rotate through family medicine, internal medicine, pediatrics, women's health, general surgery, emergency medicine, and psychiatry. Elective rotations let you test specialties before committing.

Accreditation Matters

The Accreditation Review Commission on Education for the Physician Assistant (ARC-PA) accredits PA programs. Accreditation confirms a program meets rigorous national standards.

Only graduates of an accredited physician assistant program may sit for the certifying exam. Always verify ARC-PA status before you apply.

Preparing for the PANCE

Graduates must pass the Physician Assistant National Certifying Examination, known as the PANCE. Programs build toward it through integrated coursework, practice exams, and board review.

First-time pass rates are a useful quality signal. Mass General Brigham University's PA studies program posted a 100 percent first-time pass rate for the class of 2025.

Common Work Settings for PAs

One benefit of the profession is genuine choice in where you work. PAs practice in many environments, including these:

  • Hospitals — inpatient units, emergency rooms, and surgical teams.
  • Primary care practices — often as principal providers in underserved areas.
  • Outpatient clinics and urgent care — fast-paced diagnosis and treatment.
  • Specialty offices — dermatology, cardiology, orthopedics, and more.
  • Academic medical centers — clinical work combined with teaching or research.
  • Rural and community health centers — bridging local provider shortages.

This range of settings appeals to anyone seeking long-term career adaptability.

Top Specialties for PA Careers

Some PAs spend a full career in one field. Others move between specialties as their interests evolve.

  • Emergency medicine — manage trauma, perform procedures, and make rapid decisions.
  • Surgery — assist in the operating room and deliver perioperative care.
  • Family medicine — serve as a first point of contact for whole families.
  • Internal medicine — manage complex, chronic conditions in adult patients.
  • Dermatology — treat skin conditions and perform minor surgical procedures.
  • Orthopedics — manage musculoskeletal injuries and support rehabilitation.
  • Cardiology — care for heart disease patients and guide lifestyle counseling.
  • Psychiatry — assess, diagnose, and manage behavioral health conditions.
  • Public health — lead vaccination drives, screening programs, and community outreach.

Why Choose a PA Career?

Demand for physician assistants remains strong. The U.S. Bureau of Labor Statistics projects employment will grow 20 percent from 2024 to 2034. That rate is much faster than the average for all occupations.

An aging population and team-based care models drive this growth. Expanded healthcare access adds further demand.

The profession also offers concrete day-to-day advantages:

  • Competitive pay — median annual wages reached $133,260 in May 2024.
  • Work-life balance — many roles offer predictable hours and limited call.
  • Professional autonomy — PAs diagnose and treat within collaborative agreements.
  • Lateral mobility — switch specialties without another degree.
  • Shorter runway — most programs finish in about two to three years.

Taken together, these benefits explain the profession's appeal. You gain clinical depth, financial stability, and room to change direction. Few healthcare careers combine all three so well. 

A Dynamic Degree with Long-Term Impact

Consider not only what PAs do, but the difference they make. PAs improve patient outcomes and expand access to care. They promote health equity in communities that need it most.

An MPAS degree gives you the skills, confidence, and credentials to grow throughout your career. Whether you pursue direct patient care or healthcare leadership, the profession will keep evolving with you.

Explore Further Opportunities

Ready to take the next step toward a PA career?

Mass General Brigham University of Health Professions is the only degree-granting member of Mass General Brigham. Our students complete clerkships at world-class clinical sites across New England. Team-based learning prepares graduates to lead within interprofessional teams.

Apply Today or Request Info to learn more.

Source: U.S. Bureau of Labor Statistics, Occupational Outlook Handbook: Physician Assistants.