Western Sussex Hospitals have joined up with Brighton and Sussex University Hospitals to form a new NHS Foundation Trust for our area: University Hospitals Sussex.

You can keep using this website for information about St Richard’s, Worthing and Southlands hospitals but for our other sites and to find out more about the new trust please visit www.uhsussex.nhs.uk.

Hyperbaric Medicine

The Hyperbaric Medicine Unit (HMU) provides a 24 hour on-call service for treatment of decompression illness.

Recompression chamber in the Hyperbaric Medicine Unit

Where is the Hyperbaric Medicine Unit?

It is located in St Richard’s Hospital, Chichester, West Sussex, PO19 6SE

50.844063 N, 0.769688 W / Plus Code R6VJ+J4 Chichester / https://g.page/_strichards?share

How do I contact the Hyperbaric Medicine Unit?

If the patient is seriously unwell or deteriorating rapidly, inform the emergency services promptly by dialling 999 on land or VHF Channel 16 at sea.

In all other emergencies, contact your closest chamber. If the closest is Chichester, call the duty diving doctor on 01243 330096 (24 hrs). If there is no answer, call St Richard’s Hospital on 01243 788122 and ask for the duty diving doctor.


  • At sea: Call the Coastguard, DSC or VHF Channel 16/Dial 999 (24 hrs).
  • In England, Northern Ireland or Wales:If you do not know the location of your nearest BHA member chamber then please call the National Diving Accident Helpline on 07831 151523 (24 hrs).
  • In Scotland:Call Aberdeen Royal Infirmary on 0845 408 6008 (24 hrs) – ask for the emergency hyperbaric doctor. 

For non-urgent enquiries, write to us at:

Hyperbaric Medicine Unit
St Richard’s Hospital
Spitalfield Lane
West Sussex
PO19 6SE


Contact Details

  • Tel: 01243 330096


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