How to Write a Letter of Recommendation for PA School

How to Write a Letter of Recommendation for PA School

A medical assistant, EMT, scribe, or student you supervise has asked you to write a letter of recommendation for physician assistant school. You said yes. Shortly afterward, an email arrived from support@caspa.myliaison.com with a link, a form, and a deadline.

This guide is for you — the supervising PA, physician, nurse, or professor writing the letter — not the applicant. (If you are the applicant, start with our PA school letters of recommendation guide instead.) It covers what PA programs actually evaluate, the structure that works, the CASPA mechanics, and the one mistake specific to this genre: writing a letter that reads like it was meant for medical school.

The short version: one page, first-hand behavioral evidence from patient-care settings, a named comparison group, an explicit statement of PA-fit, and no hedges. Everything below is the long version.

What You're Writing Into: The CASPA Evaluation

PA programs receive letters through CASPA (the centralized application used by 301 programs), which officially calls them evaluations and delivers them via the Letters by Liaison portal. Per the CASPA applicant help center, applicants may submit two to five evaluations, and evaluations must be completed and submitted by the evaluator — not by the applicant or anyone acting for you. One submission goes to every program the applicant designates, so address it "Dear Admissions Committee," never to a named program.

Three mechanics to get right:

• You will see the applicant's FERPA decision. Almost all applicants waive their right to view the evaluation; write with the candor that implies.
• Your submission is one-shot. Completed evaluations cannot be removed or replaced, and letters do not carry over between cycles — a reapplicant will need you to submit again next year, even if the text is identical.
• The deadline is the applicant's deadline, not CASPA's. Most PA programs run rolling admissions, so a letter that lands in September can cost an applicant interviews even if it is technically "on time." Ask the applicant for their target submit date and beat it.

What PA Programs Are Trying to Learn From You

A PA admissions file already contains the transcript, the GRE or PA-CAT where required, thousands of logged patient-care hours, and a personal statement. What it does not contain — what only you can supply — is credible third-party testimony about how this person actually behaves with patients, under pressure, and inside a care team.

That is why the most valuable PA school letters come from people who supervised the applicant's patient care experience: you have watched the exact behaviors programs are trying to predict. If your entire exposure is one lecture course or a few shadowing shifts, say so honestly in the letter — or tell the applicant a clinical supervisor would serve them better. A lukewarm letter from a distant witness is the most damaging document in an application, in PA admissions as in medical school admissions.

The Structure That Works

The anatomy is the same evidence-first architecture that works across admissions genres — our general guide for letter writers covers the full craft — tuned here for the PA reader:

1. Relationship statement (first paragraph)

How long you have known the applicant, in what capacity, and how directly you observed their work. "I have supervised Dana as a medical assistant in our family-practice clinic for two years, working alongside her three days a week" is a credibility header the reader calibrates everything else against.

2. Two or three patient-care incidents (the body)

Situation, behavior, consequence. Not "he is calm under pressure" but "when a post-syncope patient deteriorated in triage, he flagged the rhythm change to me before the monitor alarmed, and we moved her to a bed four minutes sooner." Choose incidents that show the competencies PA programs screen for: clinical judgment at the appropriate level, communication with patients and families, reliability across long stretches of unglamorous work, and teachability — how the applicant responds when corrected.

3. One calibrated comparison

"Of the roughly 30 medical assistants I have supervised in a decade, she is one of the two I would most want on my own care team." A named group, a time window, a position. This single sentence type is the most quotable thing in your letter; uncalibrated superlatives are noise.

4. The PA-fit paragraph — the part specific to this genre

Here is where PA letters diverge from every other health-professions letter: the committee wants evidence that the applicant understands and wants this profession — collaborative practice, team-based care, the PA's actual scope — not medicine-in-general. If you can honestly write "I have talked with her about why she chose the PA route over medical school, and her reasons are grounded in what she has seen PAs do," write it. What you must not do is praise the applicant as future-physician material: "she would make an excellent doctor" is a miss in a PA file, for reasons we unpack in when your PA school letter reads like a med school letter.

5. An unhedged close

"I give her my highest recommendation for PA school" — or whatever tier you can honestly defend. Readers treat mild hedges ("mostly reliable," "continues to grow") as deliberate signals; if a hedge is the truest thing you can write, the kind move is to decline before you write it.

Length and Format

One page — roughly 400 to 600 words — on letterhead if you have it, submitted from an institutional or practice email address rather than a personal one. The cross-context length rules are the same everywhere: under a page reads as a warning, over two reads as a writer who cannot calibrate, and nothing pads a letter faster than restating the CV the committee already has.

If the Applicant Offers You a Draft

Some busy clinicians answer the ask with "write something up and I'll sign it." Understand what CASPA's rules make of that arrangement: evaluations cannot be completed by the applicant on your behalf, and the certification the applicant signs is enforced. A brag sheet, a CV, and bullet-point memory-joggers from the applicant are standard, useful inputs. A finished letter you sign unread is your professional testimony in someone else's words. If you are on either side of that workflow, our guide to self-drafted recommendation letters maps the line between the two.

The same discipline applies to AI tools. No rule stops an evaluator from using a chatbot to tidy prose — almost no institution has any policy on recommenders' AI use — but an AI draft generated from three bullet points produces exactly the generic, incident-free praise that committees discount and increasingly recognize. The incidents, the comparison, and the endorsement have to come from your observation, in your voice.

Pre-Submission Checklist

1. Relationship statement with duration, capacity, and direct-observation basis — first paragraph.
2. Two or three situation-behavior-consequence incidents, ideally from patient-care settings.
3. One explicit comparison with a named group and time window.
4. A PA-fit sentence — and no "future physician" framing anywhere.
5. No CV recap, no transcript recitation, no hedged qualifiers.
6. About one page, letterhead, institutional email, submitted through the Liaison portal before the applicant's target date — not the program's printed deadline.

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Sources

• CASPA Applicant Help Center — Evaluations
• PAEA — PA program applications show growth, persistence
• Program letter requirements (examples) — Duke, Stanford, PCOM

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