Skip to content
Choosing between a career as a physician and a career as a physician assistant is one of the most consequential decisions a pre-health student will make — and most 17-year-olds are asked to make it before they have enough information to choose wisely.
At Great College Advice, our counselors regularly work through this question with students and families. The honest answer is that for many students, the right choice is not yet knowable — and the undergraduate strategy should reflect that reality.
Why the Decision Is Harder Than It Looks
The surface-level comparison is simple: physicians complete four years of medical school and a residency, while physician assistants complete a two- to three-year PA program after a bachelor’s degree. Physicians have independent prescribing authority; PAs practice with physician oversight, though the scope of that oversight varies by state and specialty.
What families underestimate is how early the structural divergence begins. The college a student attends, the clinical access built into the curriculum, and the research opportunities on offer all shape a pre-health applicant’s trajectory in ways that are genuinely difficult to reverse mid-stream.
As Pam Gentry, Senior Admissions Consultant at Great College Advice and our lead pre-health advisor, puts it: “This is a pretty tough decision for 17-year-olds to make. We try to research and work with the student and family to help figure that out — but also give them leeway to say, ‘You can change your mind, because you’re 17.'”
What Both Paths Share
Both pre-med and pre-PA students complete the same foundational science courses in their first two years, so an undecided student loses nothing by starting on the pre-med track.
The grades in those science courses carry disproportionate weight in both application processes. As Gentry notes, “The grades in their science courses are the grades that matter the most.” Understanding how admissions officers read a transcript — including how weighted and unweighted GPAs compare — is useful context before the undergraduate years begin.
Both paths require graduate-level standardized testing. Pre-med students take the MCAT; PA programs require an equivalent test. Students who struggled with high school testing should use undergrad to build confidence for these exams.
Where the Paths Diverge
Clinical experience is the defining difference. PA programs place hands-on clinical exposure at the center of the application, they want evidence that applicants understand what a PA actually does in a clinical setting.
“The undergraduate experience for pre-med and pre-PA is fairly similar — they need to take the same science classes, and they need to have access to research,” Gentry explains. “Where they differ is that in the pre-PA path, they are really looking for clinical experiences more so than in the pre-med path.”
This has direct implications for college selection. When building a list for a pre-PA student, our team specifically looks for undergraduate institutions with structured clinical access: hospitals, clinics, or community health settings where students can accumulate meaningful hours. Some schools offer dedicated pre-PA programs that build this access directly into the curriculum and, for students who meet the benchmarks, provide a pathway into the institution’s own PA program without a separate application cycle. Building that college list thoughtfully is one of the most important early decisions a pre-health student makes.
Program structure flexibility is the other major divergence. Students who enroll in a pre-PA pipeline program and later decide they want to pursue an MD face a genuine transition challenge. The reverse — a pre-med student who later decides to pursue PA — is structurally simpler because the coursework overlaps and clinical hours accumulated along the way are directly relevant to both paths.
Consideration | Pre-PA | Pre-Med |
Total length | ~6 years | 6–8 years |
Application cycle | Separate from standard admissions | Highly competitive, separate cycle |
Clinical emphasis | High — built into program | Moderate — research emphasis higher |
Flexibility to switch | Limited once enrolled | N/A — committed to MD track |
The Major Question
A persistent misconception is that pre-med students must major in biology. Roughly 60% of medical school applicants do study biology as undergraduates, but medical schools actively value applicants who bring a different intellectual foundation.
“Med schools love students who major in the humanities. They love students who major in the social sciences,” Gentry says. “Be a religion major, be a psychology major, be an English major — because they need doctors who have excellent critical thinking skills.”
There’s a practical scheduling advantage too: an English major typically requires eight to ten courses to complete, while a biology major requires twelve to sixteen. A student majoring in English can satisfy every pre-med science prerequisite and still have room to explore widely. The same logic applies to pre-PA students. Choosing a college major should be driven by genuine intellectual curiosity, not a misguided belief that anything other than biology is off-limits.
What Professional Schools Actually Want
Both medical schools and PA programs evaluate more than academic performance. Gentry’s summary of what pre-professional students most commonly get wrong is worth quoting directly: “Pre-professional students need to not just focus on growing academically as a student, but to grow socially and within their community, and find their voice and find who they are. Professional schools want people who know who they are, who’ve had some experiences, along with the qualifications they need.”
A student who spent four years optimizing their GPA without developing leadership, community involvement, or a coherent sense of purpose is a weaker applicant than their transcript alone would suggest.
When You’re Not Sure: The Default Strategy
For genuinely undecided students, the structurally safer default is to treat themselves as pre-med during the undergraduate years. As Gentry advises: “If they aren’t really sure, then they should consider going for the pre-med, and then they can always decide later to do PA. But if you join a PA program as an undergrad, it’ll be a little more difficult to make that transition into med school.”
Key takeaway: Choosing pre-med in college keeps career options open and allows you to apply to PA or MD programs later. Gaining science GPA, research, and clinical hours as a pre-med will also meet PA requirements if plans change. A gap year before applying can help with final decisions.
Choosing the Right Undergraduate Institution
Key takeaway: The three most important questions when picking a college for pre-health goals are: Is there strong pre-health advising? Does the school offer research (pre-med) or clinical exposure (pre-PA)? Will I be able to develop academically and personally?
State flagship universities typically offer strong pre-health pipelines. Small liberal arts colleges often provide more direct access to faculty research and the mentorship relationships that generate strong letters of recommendation. Cost is also a legitimate variable — medical school in the United States is expensive, and the undergraduate institution need not be elite to produce a strong professional school candidate.
If you’re working through this decision and want guidance on building a college list that supports your pre-health goals, our team at Great College Advice can help. Reach out to start that conversation.
