Devonshire Diagnostic Centre

    474 reviews
    Verified by:
    13-19 Devonshire Street
    W1G 7AF
    Saturday: 9am - 5pm, Monday to Friday: 8am - 8pm

    Appointments and enquiries

    Saturday: 9am - 5pm, Monday to Friday: 8am - 8pm

    Nurse and patient in reception

    Fast, accurate and accessible diagnostic services

    The Devonshire Diagnostic Centre at The Harley Street Clinic offers a wide range of tests, scans and biopsies within one accessible location in the heart of Marylebone and we can often carry out multiple diagnostic tests on the same day to minimise trips into hospital.

    We know how daunting waiting for tests and results can be, which is why we offer same-day appointments. Consultants and radiographers will report on your scans as soon as possible to ensure you receive a fast diagnosis and in some cases we can even carry out minimally-invasive treatments on the same day as your initial consultation. Should you require further treatment, our team of world-renowned consultants and highly-skilled nursing staff are there to advise and support you throughout your care.

    Accessible appointments


    Our Services

    The Diagnostic Centre is the main outpatient facility at The Harley Street Clinic, situated within London’s famous medical district. Aside from a wide range of diagnostic tests, we have world renowned consultants covering the complete range of specialties

    In a single visit we can offer…

    Woman having a consultation


    You'll see a specialist consultant at The Harley Street Clinic, often a leader in their field. They'll be able to diagnose your condition based on any scans or tests done - on the same day where possible.
    Woman being inoculated 161935451.jpg

    One-Stop Clinics

    Before you come, your consultant or GP may recommend certain scans or tests. We'll organise all these to take place on the same day to avoid multiple trips to hospital.
    THSC_CT scanner

    Unplanned diagnostics

    If your consultant decides you need further or unplanned tests on the day, you shouldn't have to wait or go to another centre. We aim to arrange all diagnostic tests to be done on the same day.
    Tests and scans neurology

    The latest technologies

    We take pride in investing in the latest diagnostic technologies to ensure our patients receive a precise and accurate diagnosis. From ultra-fast low-dose cardiac CT scanner to innovative new computer simulation and modelling technologies, our multidisciplinary teams of consultants and technicians are equipped with state-of-the-art tools to aid their decision making.

    We also have one of the UK’s most advanced molecular imaging centres in the UK, offering SPECT CT and PET CT scans, allowing us to observe pathological changes within the body and achieve an incredibly detailed diagnosis of complex conditions.

    Breast mammogram

    Imaging, X-rays, CT and MRI scans

    Whatever scan you need, we offer minimal waiting times and use the latest technologies to ensure you get a fast and accurate diagnosis.
    London Bridge Hospital _Sept 23_242.jpg


    Whatever screening you may require, you shouldn’t have to wait for routine tests and screenings to keep on top of your health.
    Ophthalmologist 1184053386.jpg

    Minor treatments

    In some cases, we can treat a number of most minor conditions on the day, such as kidney stones and varicose veins. Self-paying patients don't even need a referral and can simply book a consultation.

    Our Specialties 

    Breast surgery

    Surgery of the breast by a breast surgeon or general surgeon.

    Cardiac care

    We provide exceptional specialist care in all areas of cardiology and cardiac surgery across our network of outpatient centres and hospitals. Our multidisciplinary teams have cared for thousands of patients, just like you – it’s why we are the UK’s No.1 provider for private cardiac care.1

    Ear, Nose and Throat (ENT)

    Also referred to as otorhinolaryngology, or skilled consultants diagnose and treat many health conditions related to the ear, nose and throat.

    Endocrinology and diabetes care


    Our expert consultants diagnose and treat a range of endocrine conditions including thyroid and pituitary disorders, as well as diabetes


    Understanding brain function and behaviour. Our neuropsychologists examine how neurological disorders and brain injuries can change behaviour or influence emotional responses.

    Clinical oncology

    Our team of leading clinical oncologists have the latest radiotherapy technology at their disposal, helping us to provide the most effective treatment.

    Medical oncology

    Our team of medical oncologists are at the forefront of anti-cancer drug development, helping us to provide the most effective treatment, faster


    Access to more than 25 of the country’s leading consultant urologists and genitourinary specialists in London, Birmingham and Manchester.

    Vascular surgery

    Surgical treatments for all types of  blood vessel conditions, from common vascular conditions such as thread veins to more complex vascular conditions such as bypass surgery.

    Frequently asked questions

    Devonshire Diagnostic Centre FAQs

    Nobody should have to jeopardise their safety to access care, which is why the Devonshire Diagnostic Centre has gone above and beyond national guidelines around COVID-19 to maintain the safest possible environment.


    As well as testing our staff are tested weekly, we also screen all patients and staff for COVID-19 on arrival, have hand washing stations positioned throughout the Centre and we also have a range of hygiene and disinfection measures in place throughout the entire hospital.


    Find out more about the patient safety protocols in place across HCA UK sites.


    As a result of Covid-19 we’re asking people to come to their appointment unaccompanied in order to keep our spaces space, with visitors only allowed in consultations under specific circumstances. We hope to welcome friends and family in the future.

    If you require assistance on your visit, carers can be allowed if you prearrange this with our concierge or your consultant’s secretary. Our nursing team are on hand to support you at all times during your visit.

    We are committed to guaranteeing that patients with disability, their families and carers are not discriminated against in any way and that they have access to the full range of our services, facilities and information.

    If you have a disability and are coming to the Diagnostic Centre for an appointment please let us know before you attend so that we can discuss what support you may need. Please let us know if you have any special requirements such as:

    A disability requiring assisted access

    Hearing or sight difficulties

    Need of an interpreter

    We do have a pharmacy on the ground floor of the Diagnostic Centre, located on Devonshire Street. Should you need any medication, your doctor will provide you with a private prescription that you can pick up before you leave and our pharmacists can also offer any pharmaceutical advice you might need.

    You do not need a referral to book in a consultation, scan or treatment with us. If you wish for your health insurance to cover the cost of your care you will need a referral from your GP but you can also pay for services as and when you need them.

    Contact our self-pay team on for more information on paying for your treatment: 020 7034 8551

    Nurse with patient 1412518760.jpg

    How we work with doctors

    Meet our team

    Our medical centre is supported by the expertise of leading consultants and multidisciplinary teams. Our teams are able to identify and diagnose complex conditions quickly and with accuracy.

    How to book an appointment

    See a consultant

    Book an appointment

    Our team can help if you have any questions or would like to book an appointment. Our reception team are also on-hand if you'd like to make an appointment whilst your at the centre. 

    Appointments and enquiries

    Saturday: 9am - 5pm, Monday to Friday: 8am - 8pm