ADHD assessment in London

[Greeceplease]

Hi. Can anyone recommend a really good place in London (or nearby) for the ADHD assessment - and treatment- of a 14 year old boy. This is on behalf of a friend who's looked at the Central London ones (e.g Harley Street) but apparently they all have bad reviews. Many thanks.

We went to The Priory in Roehampton. Was ok- felt a bit box ticking but efficient and we got to the right outcome.

We used The Nightingale
Marylebone
The psych was lovely and you get the report
But still leaves you with the actions thereafter
It’s a diagnosis primarily