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National Imaging Registry (NIR)

The National Imaging Registry (NIR) lets clinicians securely access a patient’s imaging history and reports from other organisations in England, supporting safe, real‑time image sharing so imaging follows the patient across care settings.

About this service

The National Imaging Registry (NIR) is a strategic digital service developed as part of NHS England’s Diagnostics Digital Capability (DDC) Programme. It provides a standards-based national infrastructure that enables interoperable access to diagnostic imaging and reports across NHS and approved independent sector organisations.

NIR enables and supports healthcare providers and clinical systems in accessing prior imaging, supporting safer clinical decision-making, reducing unnecessary repeat scans, and improving coordination of care across pathways and organisations.

What NIR does

NIR enables authorised clinical systems to securely discover and retrieve a patient’s diagnostic imaging history and associated reports from other healthcare organisations in England. NIR supports real-time, federated access to imaging data across organisational and regional boundaries, allowing clinicians to access relevant prior imaging directly within their existing clinical systems to support safe and timely decision-making. Federated access means NIR queries multiple existing data sources, to reduce data duplication and storage costs across the NHS technical infrastructure.

NIR provides a national, standards-based infrastructure that supports interoperability between imaging systems while preserving local data ownership and operational control.

What NIR does not do

The National Imaging Registry does not replace existing imaging systems or introduce a new clinical user interface. NIR does not store diagnostic images or reports centrally, and it does not take ownership or control of clinical data held by participating organisations.

NIR does not change local clinical workflows or remove local responsibilities for governance, clinical safety, or information management. Each participating organisation remains responsible for how NIR is deployed and used within their local environment.


Who this service is for

You can use this service if you are part of:

  • clinical organisations, networks and trusts (NHS and private providers)
  • clinical teams and radiologists
  • cancer multidisciplinary teams (MDTs) and cross-site specialties
  • clinical and imaging system suppliers

Benefits

Why use the National Imaging Registry
  • reduced duplication of imaging, improving patient safety and clinical productivity
  • improved equity of access to diagnostic imaging across England
  • easier access to prior imaging for MDTs and cross-site working
  • reduced reliance on image transfer portals and associated licensing costs
  • environmental benefits through reduced data transfer and re-imaging
  • reduced health inequalities, consistent access to imaging regardless of geography
  • improved clinician wellbeing, less time spent chasing images, more time with patients
  • better system efficiency, fewer repeats, lower costs, faster throughput
  • improved data quality, leveraging standardised metadata
  • enhanced safety, reduced risk of misdiagnosis due to missing priors

Examples of use

Clinicians and healthcare teams use the NIR to find and view diagnostic images and reports quickly from other NHS sites and approved independent providers.

NIR helps ensure that imaging follows the patient; improving safety, reducing delays, and cutting down on unnecessary repeat scans.

Use case Desired clinical outcome Desired patient outcome

A stroke specialist can instantly view CT images taken at a local hospital before a patient transfer.

Imaging from referring hospitals is immediately available at the point of care, enabling faster, better‑informed clinical decisions and reducing delays in time‑critical stroke pathways.

Patients and families feel reassured that clinicians have the most up‑to‑date scans on arrival, supporting faster, more confident treatment decisions and improving outcomes in time‑critical stroke pathways.

Cancer multidisciplinary team (MDT) members can review MRI and PET scans from several hospitals in one session.

MDTs can reliably access prior imaging across sites, ensuring decisions are never delayed by missing scans and reducing the need for repeat imaging.

Patients experience faster cancer care with fewer delays, reduced radiation exposure, and less travel burden thanks to fewer duplicate scans and timely MDT decision‑making.

Radiologists can compare current studies with previous ones from another trust for better reporting.

Radiologists have full access to a patient’s imaging history, supporting more accurate reporting, streamlined workflows, and eliminating delays caused by waiting for external prior studies (especially in emergency settings).

Patients gain greater trust in their diagnosis and treatment because decisions are based on their complete imaging history. More accurate reporting also reduces unnecessary follow‑up scans.

Independent providers carrying out NHS-funded work can securely share results back with referring NHS teams.

Secure, timely sharing of imaging and reports between independent providers and NHS teams reduces clinical delays, prevents duplicate testing, and strengthens continuity of care across organisational boundaries.

Patients receive quicker diagnoses, fewer repeat appointments, and a smoother care journey as results flow promptly and securely back to their NHS team, regardless of provider location. 

A private healthcare provider transfers a patient to a public sector specialist team.

Both public and private clinicians can access complete imaging and reports, reducing administrative burden, avoiding unnecessary repeat scans or MDT referrals, and accelerating clinical decision‑making during transfers.

Patients receive consistent, efficient care across public and private providers, avoiding unnecessary repeat scans and benefiting from faster, better‑informed clinical decisions during transfers.

NIR connects existing hospital systems, so there’s no new platform or user interface to learn; just faster, safer access to the images and reports clinicians need.



How this service works

For details on how to use this service, see our API and integration guidance.


National usage policy

The NIR is the national NHS service for sharing diagnostic images and reports safely between hospitals, imaging networks and approved independent providers.

Use of the NIR is recommended for all organisations that carry out NHS-funded imaging. It helps make sure that scans and reports follow the patient wherever they go, reducing duplication, speeding up diagnosis and improving safety.

During the national rollout, joining NIR will become available for all public and private healthcare organisations making use of imaging services across England.


Roadmap

Find out what we're working on now and what we plan to do in the future.

Read the NIR roadmap


Status, service level and current usage

The NIR is currently moving towards a private beta go live phase, supporting live image and report sharing across NHS Imaging Networks and approved independent providers. A full national rollout is planned for 2026 to 2027.

This service is a bronze service, this means it's available 24 hours a day, 365 days a year and supported from 8am to 6pm, Monday to Friday excluding bank holidays. Availability and performance are monitored by NHS England to ensure reliability during core working hours. After private beta initial phases are completed, the NIR will move towards a gold standard service, which means 24 hours a day 365 days a year support.

Private beta usage

  • live image sharing across 3 imaging networks
  • thousands of diagnostic studies will be discovered or retrieved during the beta phase
  • additional networks are preparing to join the next onboarding wave, including independent sector providers
  • used by radiologists, reporting radiographers, and clinicians for direct patient care in live clinical workflows, using real data

Contact us

Enquiry Contact
Live service incident

National Service Desk

Email: [email protected] 

Report via our customer portal 

Telephone: 0300 303 5035

General enquires

NIR Product Team

Email: [email protected]

Strategic direction and escalations

Shan Rahulan

Email: [email protected]


Further information

internal National Imaging Registry API

Use this API to access patient imaging records across NHS and private healthcare networks. The National Imaging Registry (NIR) API allows authorised systems to view a patient’s imaging history, including examinations, diagnostic reports, and imaging studies.

internal National Imaging Registry (NIR) Privacy Notice

As part of onboarding, you'll need to update your organisation’s privacy notice to explain how patient information is used and shared through NIR to support direct care, aligned to the NIR Privacy Notice.

internal National Imaging Registry (NIR) Governance

Governance resources and templates to support completion of the NIR Service onboarding requirements, including key information on data sharing, information governance and clinical safety.

Last edited: 28 May 2026 1:37 pm