Conversational AI for healthcare appointments

Missed appointments are not a reminder problem. They are a conversation problem.

CliniCall answers your phones and talks with patients by voice, SMS and WhatsApp, to book, confirm, rebook and refill appointments in real time. Capacity your service has already paid for gets used, instead of lost.

Live in an NHS and private dental practiceBuilt for administrative scheduling workflowsA pilot can start in days
Outbound voice call3 days before · Dermatology
Outcome,
Freed slot,
Reception time used,
Representative conversation. Names, clinics and times are fictional.
The problem

Every empty slot was already funded, staffed and paid for.

A missed appointment is not just a gap in a diary. It is clinical time the system bought and did not get: a longer waiting list, a patient who was not seen, and a slot that could have gone to someone else who was waiting for it.

~£1bnEstimated annual cost of missed hospital appointments in EnglandWidely reported estimate, see sources below
£136+Estimated cost of a single missed appointmentNHS Lanarkshire, MSK physiotherapy service
7.3mIncomplete referral-to-treatment pathways in EnglandNHS England, May 2026, around 6.2m individual patients
2%Annual productivity improvement asked of NHS providersNHS 10 Year Health Plan, July 2025
Sources and assumptions
  • ~£1bn. A widely reported estimate of the annual cost of missed hospital appointments in England, derived from roughly 8 million missed outpatient appointments a year at published unit costs. It is an estimate rather than an official NHS statistic, and estimates in circulation range from about £960m to £1.2bn depending on the unit cost used. The figure NHS England publishes itself covers general practice: more than 15 million wasted appointments a year at an average £30, or over £216m. NHS England, January 2019
  • £136+. NHS Lanarkshire states that each missed appointment costs the NHS at least £136. It is a board-level figure for its own services, not a national average. NHS Lanarkshire
  • 7.3m. The published measure counts referral-to-treatment pathways, not individual people: a patient can be on more than one. At the end of May 2026 there were 7.3 million incomplete pathways, which NHS England estimates represents around 6.2 million unique patients. Published monthly. NHS England RTT waiting times
  • 2%. The productivity improvement asked of NHS providers each year, alongside the funding settlement in the 2025 Spending Review. 10 Year Health Plan for England, July 2025
  • These figures describe the scale of the problem. None of them is a claim about what CliniCall delivers. What CliniCall delivers in your service is measured from your own data during a pilot.
Why reminders alone cannot close this. A reminder cannot negotiate. When a patient cannot attend, the service needs to know now, offer an alternative now, and offer the freed slot to someone else now. That is a conversation, and conversations have never scaled with reception staff alone.
Evidence · one practice, twelve months

6,000 appointments, and what actually happened to them.

A UK dental practice, NHS and private, gave us a full year of its appointment book. One practice and one specialty, so read it as a signal rather than a benchmark. But it is real: every cancellation, every refill, every no-show.

18%never happenedCancelled or missed across the year.
43%of cancelled slots were refilledSomeone else was found for nearly half of them.
47%vs 35%refilled with more than three days’ notice, against lessNotice is the whole game.
90%of patients who took a freed slot attendedA recovered slot is a kept slot, not a second gamble.
What this is, and what it is not. These are the practice’s own figures across the twelve months. They are not a CliniCall result: they describe the mechanism CliniCall is built on, not our effect on it. The gap between 47% and 35% is the entire argument for Confirm & Backfill, because earlier warning is the one thing a conversation can buy you and a reminder cannot. CliniCall has been calling live in this practice since August 2026, and what it does to these numbers is being measured now. We will publish it either way.Twelve months of appointment data from a UK dental practice, September 2025 to September 2026. Live calling from August 2026.
The platform

Two engines. One platform.

Most tools in this space do one half of the job: they tell patients about appointments, or they help the few patients who already engage to move them. CliniCall does both halves, and joins them together.

  • Conversational calling engine. Real two-way, natural-language conversations that confirm, decline and reschedule, escalating intelligently across SMS, voice and WhatsApp, with handover to a person built in from the start.
  • Real-time scheduling and backfill engine. The moment a slot is released, it is offered to the right patient on the waiting list under your clinical rules, so freed capacity is used rather than quietly lost.

It listens, then acts

No keypad menus and no scripted branches. A patient can say “not Thursday, I’m working” and get a real answer, in the same call.

It writes back, or it hands you the keystroke

Designed to read and write directly to scheduling systems. Until that connection exists, your team gets each agreed rebooking ready to enter: seconds at a keyboard instead of a call nobody had time to make.

It hands over cleanly

Anything outside the rules goes to a person, with the full context attached. Staff spend their time on exceptions, not on dialling.

One platform, four products

A cancellation becomes usable capacity before it is lost.

That is Confirm & Backfill, and it is where most services start. The same two engines then extend either side of it: to the call that comes in, to the appointment as it is made, and to the clinic that falls over on the day.

Confirm & Backfill · Days before · the core of the platform

Re-confirm attendance, and refill what frees up

Circumstances change between booking and clinic. A one-way reminder cannot respond to that; a conversation can.

  • Ahead of the appointment, CliniCall checks the patient can still attend, escalating across SMS, voice and WhatsApp until it reaches them.
  • If they cannot, it reschedules them inside the same conversation, offering only what your clinical allocation rules permit for that patient: no callback, no queue, no second attempt from reception.
  • The freed slot goes to the backfill engine, which offers it to the next suitable patient under the clinical rules your team sets.
  • Urgency, vulnerability, waiting time and appointment type decide who is offered the slot. Your rules, not ours.
The difference: A cancellation stops being a lost slot and becomes a slot that moved to someone else who was waiting.
Configured to your clinical settings. How far ahead attendance is checked, how many attempts on which channels, which appointment types may be moved and to what, who is eligible for a freed slot, and the order urgency, vulnerability, waiting time and appointment type put them in.All of it is configuration your service owns and can change, not code we rewrite. Nothing runs until your team has set it.
Your number, not ours

What is your service losing, and what is a share of it worth?

Every business case for this starts with one figure: the value of the capacity you are currently losing. Move the sliders to your service and see it. The arithmetic is on screen, nothing is hidden behind it.

Your service

Pick the closest match. The sliders rescale to suit it.

Across every clinic and clinician in scope.
Use your own figure if you have it. The default is deliberately conservative.
A missed GP appointment is commonly costed around £30 to £40.
How much of the lost capacity is turned back into a used slot. Measured with you from week one. For reference, a UK dental practice refilled 43% of its cancelled slots over twelve months without any automation at all.
Capacity worth recovering, each year£48k1,210 appointments a year that would otherwise be lost, put back into use.
Capacity lost to missed appointments£138k
Recovered at 35%£48k
Appointments a year57,600
Missed a year3,456
Recovered a year1,210

Confirm & Backfill · GP practice. Arithmetic only, over 48 operating weeks. An estimate to open a conversation, not a forecast.

Model this properly with us

An illustrative model using your own inputs, not a forecast or a guarantee. Real outcomes are measured from your own data during a pilot. See the assumptions in full.

Confirm & Backfill · hear it for yourself

This is what your patients actually hear.

A Confirm & Backfill call, start to finish: CliniCall checks a patient can still attend, and moves them when they cannot. Natural conversation, no scripts and no keypad menus. Fifty seconds will tell you more than the rest of this page.

Patient name and clinic details in this recording are fictional.

Hear it against your own pathways
Where it fits

Not another reminder. Not another portal. Not another form.

CliniCall sits alongside what you already run and does the parts none of them can: reach the patients who do not respond, put a freed slot back to work, and answer the phone when it rings.

Outbound: reaching patients about an appointment

 One-way remindersSelf-service portalsCliniCall
Reaches patients who do not respondNo, the message is sent and that is the end of itNo, the patient has to come to itYes, escalating across channels until a person is reached
Handles “I can’t make that”Directs the patient to phone the practiceOnly if the patient is digitally confidentRebooks inside the same conversation, in natural language
Fills the slot that was freedNoOnly if another patient happens to lookOffers it to the right waiting patient automatically
Recovers a whole cancelled clinicNoNoContacts the whole list in parallel and rebooks from live availability
Effect on reception workloadIncreases it, the calls come back inboundReduces it for digital patients onlyTakes the repetitive calling off the team, leaving them the exceptions

Inbound: when the patient rings you

 Call queue & call-backOnline triage formsCliniCall Front Door
What happens at 8amEveryone waits; the queue is the productNothing, the form is open, but the phone still ringsCallers are answered in parallel rather than held in a queue
Reaches patients who will not use a web formYes, if they hold long enoughNo, that is the cohort it missesYes. It is a phone call, which is what they already do
Who decides urgencyWhoever answers, under pressureOften the tool, by algorithmYour clinician, every time. Front Door never triages
What the clinician receivesA note, if there was time to write oneWhatever the patient typedA structured summary of every caller, in one list
How the patient finds outThey ring back, or wait for a callA message, if they check itCliniCall calls them once the clinician has decided

Front Door answers calls in parallel up to the concurrent call capacity configured for your service, which is sized with you and can be raised. Online triage tools that assess urgency may be regulated as medical devices. Front Door is not, and is not intended to be, because the clinical decision stays with your clinician. How we hold that line.

Designed for healthcare

Built around governance, not bolted onto it.

The first questions any NHS service asks are about safety, data and accountability. They are the right questions, and they shaped how CliniCall was built.

Safety-first by design

Your clinical rules govern which appointment types can be moved and who is offered a freed slot first. Every conversation can hand off to a person.

Augments, never replaces

CliniCall works alongside existing letters and channels, protecting reachability and equality of access rather than assuming every patient is digital-first.

Privacy built in

Secure links carry no patient-identifiable information, and deployments are grounded in consent and a data protection impact assessment from day one.

Start controlled, integrate as you scale

Three levels: no connection at all, a secure export and write-back path, or direct real-time integration. Start at whichever your IT position allows, in days, and move up when it suits you. How each one works.

Designed for administrative workflows

CliniCall is built for scheduling and patient communication. It does not diagnose, triage or make clinical decisions. The regulatory position in full.

Measured from day one

Confirmation rates, decline lead-time and backfill rates are tracked from the first deployment, so the business case is evidenced rather than asserted.

Read the governance detail

Run a pilot in your service.

Eight weeks, metrics agreed before we start, and a written report built from your own data. Set up in days rather than quarters, so you can measure the effect on your own missed-appointment rate before committing to anything longer. Terms are scoped with you.