The victim told the BBC he was speaking to friends on the phone when a group of about five men who he believes were speaking Arabic swore at him and attacked him.
He said he tried to protect his face as the men ripped at his trousers and left him with one shoe.
The victim said he believed he was targeted because he was speaking Hebrew and was Jewish.
The Met Police said officers were called out shortly after 02:00 BST on Monday following reports that a Jewish man had been assaulted by a number of men.
Inquiries are ongoing, the Met said.
The man told the BBC that although he had heard about recent antisemitic attacks in London, he had not previously been scared by them.
“It felt far away for me and I was feeling safe. But now when it’s happened to me, I think something big needs to change in London, and in Europe.”
Despite the assault, he says he will return to London to see his friends and family.