Who we are

NHS in London

NHS London has overall responsibility for the performance of 31 primary care trusts (PCTs) - who operate in five clusters, 16 acute trusts, three non-FT mental health trusts and the London Ambulance Service. A further 18 acute / specialise trusts in London are foundation Trusts and regulated by Monitor.

All trusts are listed below with links to their websites. Alternatively use our interactive map to search for Trusts by London borough.

For more information about these different types of trusts and what they do visit our structure explained page.

We also have a page listing the contacts for GP pathfinders.

Ambulance Trusts

NHS Trusts (Acute Hospitals)

Primary Care Trusts / Clusters


London created sectors in early 2010 as a cost saving initiative. Sectors are groups of PCTs that work together and have one management team.

The DH 2011/12 Operating Framework outlined the process for this happening nationwide by 1 April 2011 and announced that these groups of PCTs would be called clusters. National consistency is important so London is now adopting the term clusters. From now on London sectors should be referred to as clusters.

During the transition, the clusters will keep a tight grip on performance and quality in order to hand over a strong platform to GP consortia.

There are five clusters in London:

  • North West London (Brent, Harrow, Ealing, Hounslow, Hammersmith and Fulham, Westminster, Kensington and Chelsea, Hillingdon)
  • Outer North East London (Waltham Forest, Redbridge, Barking and Dagenham, Havering, Newham, Tower Hamlets, City and Hackney)
  • South East London (Lambeth, Southwark, Lewisham, Greenwich, Bexley, Bromley)
  • North Central London (Enfield, Barnet, Haringey, Camden, Islington)
  • South West London (Richmond and Twickenham, Wandsworth, Sutton and Merton, Croydon, Kingston)

North West London has also created three sub-clusters, but the cluster and sub-clusters work as a single senior management team:

  • Brent and Harrow
  • Inner: Hammersmith and Fulham, Kensington and Chelsea, Westminster
  • Outer: Ealing, Hillingdon, Hounslow

Mental Health Trusts

Foundation Trusts*

*Foundation Trusts are not managed by NHS London.

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