North West London ICS saved £2 million by switching to digital appointment letters through DrDoctor, covering 1.6 million patients across 18 hospital trusts. Mid and South Essex delivered 11 million COVID vaccinations using Accurx's SMS booking tool. Leeds Teaching Hospitals reduced no-shows by 30% with xDesign's patient app. Buckinghamshire saved £250,000 switching to digital letters via Zesty.

Sussex ICB reduced DNAs by 30% by giving patients access to their own records through Patients Know Best — patients who can see their appointment history and results are more likely to attend. BHR Foundation Trust cut in-person pre-operative assessments by 60% using Definition Health's virtual platform.

The returns on this category are among the fastest in NHS technology. Digital letters pay back in months. SMS reminders generate measurable DNA reduction within weeks. The investment is low; the constraint is usually procurement inertia rather than evidence.

Case studies

Written-up examples from UK NHS organisations, with named trusts and measurable outcomes.

North West London ICS DrDoctor (SME)
What they did

Switched from paper to digital appointment letters across the ICS, covering 1.6 million patients across 18 hospital trusts and replacing a process that was slow, costly, and generating unnecessary DNAs.

Outcome

£2 million saved across the programme. DNA rates reduced. Patients receive and confirm appointments digitally, with automated reminders. Part of a national multi-trust programme across 18 hospital trusts.

Mid and South Essex ICB Accurx (SME)
What they did

Deployed Accurx's SMS-based booking platform to manage COVID-19 vaccination appointments across the ICS, enabling rapid population-scale outreach without a contact centre.

Outcome

11 million vaccinations booked. Rapid deployment at scale without additional staffing.

Leeds Teaching Hospitals NHS Trust xDesign (SME)
What they did

Built and deployed a patient-facing app giving people visibility of their appointments, test results, and communications — reducing the friction that leads to missed appointments.

Outcome

30% reduction in no-shows. Patients better informed and more engaged with their own care pathway.

Also worth reading

Further examples from the Proven Public database — not yet written up in full.

Buckinghamshire Healthcare NHS Trust
Zesty
Digital appointment letters. £250,000 saved. 45% patient portal adoption.
Sussex ICB
Patients Know Best
Patient record access. 30% fewer DNAs where patients have access to their own records.
BHR Foundation Trust
Definition Health
Virtual pre-operative assessments. 60% reduction in in-person appointments.
North Cumbria Integrated Care
Palantir
AI waiting list prioritisation. 20% fewer cancellations.
Leicestershire Partnership NHS Trust
Mjog
SMS patient engagement. 25% increase in cancer screening uptake.
North West London ICS
DrDoctor
Waiting list validation. 35% reduction potential in inactive patients identified.