Honestly, yes I think he could get into Oxford (really high score, congrats on that!) but I'm not too sure.
The official cut offs and deciles haven't been released yet they'll come out in early October but Im pretty sure its 95+ percentile, so I would advice you to list down Oxbridge, Imperial and UCL as ur temporary choices, and once the deciles are released you can check if you meet the requirements and if your percentiles really high, like 98th percentile, then go for these top unis (although they may consider GCSE results as well so u might wanna check that).
Oh and btw, can you pls advice me on how to bring my VR score up if possible, the problem with me is accuracy - I can finish the qs on time but not with a very high accuracy which brings my score down. My UCAT is in 4 days, so any help would be appreciated.
Congrats again on your score, and I do hope you get into a top uni for medicine.