Per diem nursing for facilities means booking licensed clinicians for individual shifts, with no contract and no long-term commitment. It can serve as a release valve for the stress that builds up among core staff when they are overworked and seeking some time off to recharge their batteries. It's how facilities cover sick calls, census surges, and seasonal spikes without carrying excess headcount the rest of the year.
Per diem shifts work best as a buffer around a stable core team rather than as a replacement for one.
Research on temporary healthcare labor shows that roughly 75% of US hospitals frequently use temporary nurses, and the share of hospital hours worked by agency staff grew 133% between 2019 and 2022.
That shift matters because filling a gap quickly is no longer just an operational convenience. It's what keeps ratios compliant, beds open, and core staff from absorbing the overtime that drives turnover.
Keep reading to find out more about per diem shifts and whether they are the right call for your facility.
What are per diem shifts?
Per diem, or PRN (from the Latin “pro re nata,” meaning “as needed”), shifts let a facility book licensed clinicians for a single shift on any day of the week, with no long-term contract attached.
The distinction that matters operationally is commitment length:
- A per diem booking needs the facility to employ a nurse for one shift
- A travel contract obligates the facility to employ a nurse for 13 weeks
- An agency placement sits in between, but with fees attached
PRN nurses for facilities are a fantastic strategy that can reduce onboarding time when using known nurses and provide coverage that scales with the schedule as it presents itself, one shift at a time.
The definition is simple. The value becomes clear when you look at the gaps these shifts fill.
Which staffing gaps can per diem shifts cover?
A staffing shortage rarely looks like just one thing, and the right response depends on which kind you have. Understanding how per diem nurses help staffing shortages starts with naming the specific gap.
When is per diem the right tool?
Not every gap. Per diem nursing for facilities works when needs are variable, unpredictable, or short-notice, and when there's a stable core team for it to supplement.
If the shortage is chronic, the durable fix is permanent hiring and retention, with per diem bridging while you recruit. Nursing school partnerships and rural staffing strategies solve a different problem than shift-level coverage does, and they solve it more permanently.
Duration should also settle the question of per diem vs. travel nurse for facilities. Travel contracts lock in coverage for weeks or months, which suits extended leaves and long recruitment cycles. Per diem fits the shift-by-shift needs that make up most day-to-day gaps—and reducing travel contract reliance usually starts with routing those shift-level gaps somewhere cheaper.
What do per diem nurses cost compared to agency staffing?
The cost of per diem nurses comes down to precision. Hourly rates typically exceed staff wages, but the facility pays only for hours actually worked, with no benefits burden and no minimum commitment. That trade favors per diem when it fills genuine gaps and works against it when it becomes baseline coverage.
The comparison against traditional agency staffing is where the numbers separate, as you can see in the table below:
There's a revenue side as well. A study found that hospital spending on supplemental labor was associated with higher net patient revenue, because a bed that can't be staffed is a bed that can't be billed.
Speed completes the picture. Filling nursing shifts on short notice is realistic on modern platforms.
Adaptability and evaluation
Per diem clinicians work across many settings, so they integrate into new teams quickly and adapt to unfamiliar workflows without weeks of ramp-up—particularly when onboarding is streamlined for repeat bookings.
There's a hiring benefit, too. A booked shift is a working interview. Some of your strongest permanent hires might start as clinicians who picked up one Tuesday night and came back.
This means that you should keep track of all the clinicians who perform well. Make them a priority to fill unforeseen staffing gaps, not only to fill them but to do it with a qualified clinician. Bringing in these established PRNs takes pressure off your core staff.
How do you build per diem into your staffing model?
A flexible nurse staffing model pairs a dependable core team with a per diem nurse pool you can activate on demand. Building one is a process, not a purchase.
- Baseline the gap: Pull 90 days of call outs, open shifts, and overtime hours, broken out by unit, day of week, and shift. Most facilities discover their gaps are concentrated—in a few units and on a few recurring days—which tells you where to aim.
- Decide what share of the schedule PRN should carry: Set a target percentage per unit and treat it as a ceiling. Contingent labor running above your ceiling for more than a few weeks is a signal to recruit, not to book more shifts.
- Seed a repeat pool: Identify a working number of clinicians per unit who have successfully worked at your facility, and prioritize rebooking them. Familiarity is what separates a fill from a good fill—a returning clinician knows your charting system, your layout, and your team.
- Onboard once, rebook often: The administrative cost of PRN staffing sits almost entirely in first-time onboarding. Every repeat booking amortizes it.
- Track four numbers: Fill rate, time-to-fill, repeat-booking rate, and overtime hours displaced. The fourth is the one most facilities skip, and it's the one that shows whether the model is protecting your core staff or just adding labor spend.
- Set an escalation threshold: Define in advance how long a gap can run on per diem before it becomes a travel contract or an open req. Without that rule, bridging quietly becomes the baseline.
For a facility manager or DON, the practical requirement is a platform that supports all six steps: license verification, clinician ratings, and the ability to rebook known clinicians directly.
Digital staffing tools have made this workable at a scale that wasn't available when the only options were an agency phone call or mandatory overtime.
Think of the repeat pool as an outside internal staff—clinicians who aren't on your payroll but know your building. Keep track of who performs well, prioritize them for unforeseen gaps, and fill shifts with people your charge nurses already trust.
Start filling shifts with Nursa
Nursa connects facilities with license-verified PRN clinicians, so you can post a shift and fill it dependably, often on short notice.
If you're working on PRN staffing solutions right now, create a free facility account and start posting shifts.
Sources:
- Agency Staffing and Hospital Financial Performance: Insights and Implications
- The Staffing Shortage Pandemic
- State Nursing Home Minimum Staffing Mandates: Increased Staff Levels, Minimal Impact On Finances And Closures, 2010–23
- The Impact of Online Labor Platforms on Workforce Management in Health Care
- Adopting Online Nurse Scheduling and Staffing Systems
- Overworked and Underpaid: Why States Should Require Overtime Pay for Nurses
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