Welcome to Clinical Diagnostic Services

Important Patient Information

Scan Referrals

Patients are able to self-refer for scans at CDS.  However, CDS strongly advises patients to obtain a formal referral from a GP, consultant or appropriate practitioner.  This ensures clinical back-up is readily available.  Medical Insurance companies usually require a formal referral if scan examination costs are to be covered.  We ask patients to make sure they understand what type of ultrasound scan has been requested and are aware of its clinical indication.

Scan Costs

Please feel free to contact CDS for a list of scan fees, and please check all relevant costs when making your scan appointment.  Our staff are always on hand to assist with any queries prior to your appointment.

Patients are responsible for payment of relevant scan fees at the time of the examination, unless: (i) a Medical Insurance Membership and scan authorisation number are presented beforehand or (ii) prior arrangement has been made with the Practice Manager.

Medical Insurance

CDS is registered as a provider of ultrasound scanning services for most  medical insurance companies.  Patients are instructed to contact their insurance company prior to the scan examination in order to obtain  authorisation from them.  CDS requires an authorisation number and formal referral at the time of the scan examination for patients with medical insurance cover.

Additional Needs

All aspects of patient support are important and need to be addressed.  Please inform CDS if patients require any special provision or attention for whatever reason.  


Patients under the age of 18 years have to be accompanied by a parent or responsible adult.

If scan examinations are sensitive in nature either due to the type of scan requested (e.g. transvaginal pelvic, breast scans etc.) or emotional needs of the patient, please let CDS staff know at any time prior to or during ultrasound examination if a chaperone is needed.  The presence of a chaperone is available to all patients for any scan.

CDS scanning practitioners reserve the right to request a chaperone to be present during the scan examination.

Privacy Policy

For more information on our Privacy Policy, please visit here.

Further information

Patients are welcome to address any queries regarding their scan to Mrs Ruth Carr, CDS Practice Manager on 020 8732 3072.