The Metropolitan Police said officers were called to a disturbance at London's Ace Hotel in Shoreditch on Tuesday night before a 49-year-old man was taken to hospital.
A Scotland Yard spokeswoman said: "The man has been taken to an east London hospital where he remains in a stable condition."
Witness Alvin Carpio said Gascoigne, who has faced a long struggle with alcoholism, was kicked down the stairs after an altercation with another guest.
Another witness posted on Facebook that it was "a shame" to see Gascoigne in such a state.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Gascoigne's spokesman, Terry Baker confirmed to the Daily Mirror that Gascoigne was treated in hospital for a head wound. Mr Baker added: "He hasn't been arrested. He's about to be released and sent home."
In September Gascoigne was fined £1,000 after pleaded guilty to racially aggravated abuse at his one-man show.
(Reporting by Neil Robinson; editing by Clare Lovell)
