Urgent care runs on part-time and locum clinicians by design. Walk-in volume moves, and a schedule built only from full-time staff can't move with it. That flexibility comes in two forms that look identical on a budget line. In one, the same group of clinicians covers a varying number of shifts. In the other, a different clinician arrives for each gap, and the clinic sources, onboards, and orients someone new every time.
This guide covers what locum turnover costs an urgent care, how to measure it with your own numbers, and what brings a clinician back for a second shift. It's written for clinic owners, medical directors, and clinic managers.
What Locum Turnover Costs an Urgent Care
Each clinician who is new to your clinic costs four things that a returning clinician doesn't.
Sourcing. Someone has to find the clinician. You pay for that as an agency or platform fee, as your own staff's time, or both.
Onboarding. Documents get collected and reviewed, EMR access gets set up, and logins get issued. A returning clinician only needs whatever has expired since their last shift.
Orientation. Your medical director, lead MA, and front desk each spend time with a new clinician before and during the first shift. That time comes out of their own work.
Slower first shifts. A clinician working an unfamiliar clinic sees fewer patients per hour than the same clinician will once they know the place.
None of these appears on a report as turnover. Sourcing sits in the staffing line, onboarding and orientation sit inside salaries, and slower shifts show up as longer waits.
Why a Locum Clinician's First Shifts Run Slower
The slowdown comes from site knowledge. A clinician on a first shift is learning how your EMR is configured, where supplies are kept, how x-ray and lab orders are placed and how results come back, who to call for a referral, and which tasks your MAs and RNs handle. None of that is in a credential file, and none of it transfers from the last clinic.
The same applies to support roles. An RN or MA who is new to the clinic is learning your rooming flow, your stocking, and your front-desk handoff while the shift is running.
A locum orientation shortens the ramp. The remaining gap closes only when the clinician has worked the site, which is why a tenth shift from someone you know is worth more to you than a first shift from someone you don't.
Measuring Locum Turnover Cost With Your Own Numbers
The cost of one new start has three parts:
Cost of a new start = sourcing cost + (onboarding and orientation hours × hourly cost of the staff doing them) + (visits lost during the ramp × average net revenue per visit)
Sourcing cost is on your invoices. For onboarding and orientation, have each person involved log their hours across two or three new starts and take the average.
Visits lost during the ramp takes more care. Compare patients per provider hour on a clinician's first shifts with your target for the same windows, using the method in calculating urgent care staffing ratios. A lower figure only costs you visits in windows where demand was above what the clinician could see, meaning patients waited past your door-to-provider threshold or left. In a slow window, a slower clinician costs nothing.
Multiply the cost of a new start by the number of new starts in a year. That's what turnover in your outside roster costs, and it's the figure to weigh against the effort the next two sections describe.
Track one more number alongside it: the share of your outside shifts worked by a clinician who has worked at the clinic before. When that share falls, new-start costs rise with it.
What Brings Locum Clinicians Back to an Urgent Care
A locum clinician chooses where to work shift by shift. You aren't trying to convert them to full-time. You're trying to be a clinic they pick again, and a clinic manager controls much of what decides that.
A consistent rate. A clinician who took a shift at one rate and sees the same shift offered lower the next month has a reason to look elsewhere. If rates need to differ by day or time, set the differences by rule so they're predictable.
Notice. A shift posted weeks ahead can be planned around. A shift offered the night before goes to whoever happens to be free.
Few changes after booking. A clinician who has turned down other work to take your shift bears the cost when you cancel or shorten it.
Prompt approval of hours. Pay generally follows your sign-off on the hours worked. When approval sits in someone's inbox, the clinician experiences it as late pay.
A prepared first day. EMR access that works, a named person to ask, and a walkthrough of the clinic tell a clinician how the remaining shifts will go.
Being treated as part of the team. Staff who introduce themselves and include the clinician in what's happening on the floor make a second shift more likely than a badge and a room assignment do.
Clinicians weigh these same things from their side, as our guide to how locum clinicians build facility relationships describes.
Keeping a Returning Locum Roster at Your Urgent Care
A roster that lives in one manager's memory leaves when the manager does. Keep a record for each outside clinician with:
- Role, and the sites they've worked
- Date of their last shift
- License and certification expiration dates
- The days and hours they prefer
- Whether your staff would book them again
Review it monthly. Count how many returning clinicians you have for each role at each site. One returning NP for a site means a single scheduling conflict puts you back to a new start.
Offer open shifts to the returning roster first, and do it when the schedule is built, before a gap becomes urgent. A clinician who hasn't heard from you in months has filled that time elsewhere.
Check your staffing agreement before you rebook a clinician directly. Some agreements restrict it or attach a fee, as the contract terms in a staffing agency agreement explain.
Where Locum Turnover Is the Right Call
Some turnover is built into the model. Locum clinicians relocate, take permanent roles, and change their schedules, and no retention effort changes that. A one-time gap at a site you rarely staff from outside doesn't justify building a roster around it.
A roster also needs new clinicians coming in. If two people cover all your outside shifts, losing one puts half your flexible coverage back to a new start. Bringing in a new clinician on a shift that isn't an emergency, a few times a year, keeps the roster from shrinking to that point.
The target is a schedule where most outside shifts go to clinicians who've worked the clinic before, with a steady trickle of first shifts replacing the ones who move on. How many shifts to cover from outside in the first place is a separate decision, covered in urgent care hybrid staffing.
Rediworks is a self-service marketplace for urgent care shifts, and the rate is shown on every listing before a clinician applies. Sign up to post shifts.