I think it is fair to say he is "a" creator of Bitcoin given all the early work he did to make the project a success but there is no evidence that he is the inventor of Bitcoin, Satoshi Nakamoto.

As an unrelated side note it is worth reading his post from 2009 when we talks about having ALS: https://www.lesswrong.com/posts/bshZiaLefDejvPKuS/dying-outs... I have a memory of discovering this essay on hn, but I can no longer find the discussion. Maybe I remembered it wrong.

Edit: I found it https://news.ycombinator.com/item?id=867623