Reducing DNAs at a physio clinic: reminders, deposits and easy rescheduling

A physio clinic cuts its did-not-attend rate by making the appointment easy to remember, easy to move, and mildly costly to abandon. That means a short ladder of automated reminders, a one-tap way to reschedule rather than a phone call during clinic hours, and a small deposit or card on file for the patients most likely to vanish. Clinics that put all three in place typically see DNAs fall by a third to a half within a couple of months, which for most practices is thousands of pounds a year recovered from slots that were simply going empty. This article is the practical setup, aimed squarely at physiotherapy, osteopathy and chiropractic clinics.

DNA is the clinical term for it, but the effect is the same whatever you call it: a treatment slot held for a patient who does not turn up, cannot be refilled at short notice, and earns nothing. Unlike most revenue problems, this one has a boring, reliable, mostly automated fix, which is exactly why it is worth fixing first.

Do the maths before you dismiss it

Clinic owners often treat DNAs as an unavoidable background annoyance rather than a line on the accounts. Spend five minutes turning it into a number. Take your average session fee, count the appointments last month that were booked and then missed, and multiply out across a year. For a clinic charging £45 to £65 a session, even a handful of DNAs a week runs into several thousand pounds a year of lost revenue, on slots you had already committed a practitioner's time to.

That number is worth having, because it reframes the whole problem. A software subscription of a few pounds a week that removes half your DNAs is not a cost, it is one of the highest-return investments in the practice. And measuring the rate before you change anything gives you the baseline to prove it worked, which we come back to at the end.

Why patients actually miss appointments

DNAs feel like rudeness, but the patterns point at three causes, and each one has a specific fix. Get the causes right and the fixes are obvious.

The first and biggest is simply forgetting. The appointment was booked a week or two ago in a thirty-second phone call, nothing went in a calendar, and life moved on. A forgotten appointment is precisely what reminders exist for, and it is the easiest cause to eliminate.

The second is wanting to cancel but finding it too hard. The patient realised on Sunday evening that Monday morning does not work, your phone line was closed, cancelling felt like an awkward confrontation, and doing nothing was the easiest path. If the only way to cancel is a call during working hours, you are manufacturing DNAs out of patients who would happily have freed the slot.

The third is genuine ambivalence, usually about a follow-up they half-agreed to at the end of the last session. They said yes to "same time next week", felt better by Thursday, and quietly decided not to come. That one is part clinical communication (making sure the patient understands why the next session matters) and part gentle commitment mechanics, which deposits handle. None of the three is solved by being annoyed at patients; all three are solved by systems.

The reminder ladder that moves the numbers

One reminder beats none, but a short ladder beats one, because it catches the patient at more than one point and gives more than one chance to rearrange rather than vanish. The pattern that works for clinics is three messages.

An email confirmation at the moment of booking, with the date, time, practitioner, address, anything to bring or wear, and a clear link to reschedule or cancel. This is the reference the patient searches their inbox for later. Then an email reminder 48 hours before, far enough out that they can still rearrange their day or free the slot for someone else, with the reschedule link again. Then an SMS the day before, which is the one that moves the numbers most, because texts get read within minutes while emails sit unopened. Keep it short: clinic name, time tomorrow, and a reschedule link.

Two things make the ladder work. It runs automatically from your booking system, every time, with nobody needing to remember. And every message carries a low-friction way out, because a reminder without an easy reschedule route just tells an ambivalent patient about an appointment they will still skip. The whole mechanism, with the message copy, is laid out in our companion piece on cutting no-shows with booking reminders, and it is the foundation everything else here builds on.

Easy rescheduling turns a DNA into a freed slot

The reschedule link is not a detail, it is half the point. A patient who can move their appointment themselves at 9pm on a Sunday does exactly that, and the slot they vacate goes back into availability where another patient can take it. The alternative was a DNA: the same patient, unable to reach you, simply not turning up on Monday. A reschedule is not a failure, it is a rescue, because it converts a dead slot into a filled one and keeps the patient in treatment.

This is why online booking with self-service rescheduling matters so much for DNAs specifically. It attacks the second cause (wanting to cancel but finding it too hard) directly, and it means the reminders have somewhere useful to point. A large share of the patients who would have DNA'd will instead quietly rebook themselves, if you let them, and that freed slot can then be offered to a cancellation list to refill it entirely.

Deposits and card-on-file for the high-risk patients

New patients DNA at a much higher rate than regulars, because there is no relationship yet and nothing at stake if they simply do not appear. A small commitment fixes most of it. The two common models are a deposit at booking, redeemed against the session fee, or a card held on file with a clearly stated cancellation policy, for example a charge for cancellations inside 24 hours. Both work; card-on-file often feels smoother because no money moves unless the policy is triggered.

Owners worry this scares patients off, and framed badly it can. Framed as protecting appointment times rather than punishing patients, it rarely does: "We hold your appointment exclusively for you, so we take card details at booking. You are only charged if you cancel with less than 24 hours' notice." State it at booking, in the confirmation, and on your website so nobody is surprised, and apply it with discretion, because a regular with a genuine emergency should obviously be waived. The policy exists to change behaviour, not to farm fees. Start with new patients only, since that is where the DNA problem concentrates, and existing patients notice no change.

Measure it, or it did not happen

Before you change anything, establish your baseline: what percentage of booked appointments last month ended as DNAs? Most practice management systems report this directly, and if yours does not, a manual count of one month's diary is enough. Then check the same figure monthly after the changes go in. This tells you which lever moved the number (you will usually see the biggest single drop when the SMS reminder switches on) and turns a vague annoyance into a visible financial result. "DNAs went from nine per cent to four per cent, worth roughly £X a year" is the sentence that justifies the whole setup, and it is the same measure-first habit that underpins systematising your business generally. The reminders, deposits and refill automation are also exactly the kind of unglamorous, set-once workflow covered in how to automate your small business.

Put it in place this week

Measure your current DNA rate. Switch on the three-step reminder ladder in your booking system, making sure every message carries a reschedule link. Turn on self-service rescheduling. Then introduce card-on-file for new patients only, framed as holding their slot. Recheck the rate each month and watch it fall.

The full reminder ladder copy, the deposit wording that keeps patients rather than scaring them, and the Cliniko and Jane configuration walkthroughs are in The Clinic Growth Kit (£49), and the whole booking-and-reminder setup is what we build on our physiotherapists and clinics page, with setup from £500. If you would like help wiring it up, book a free 15-minute call or run our free business audit to see where your clinic is leaking bookings today.