It seems reports of the NHS Blogdoctor's demise may be premature. A troll has admitted to hoaxing the news of his death in order to provoke Dr John Crippen into a denial. Thanks to Julie for letting me know.
You've got to be very careful what you read on the internet, obviously. Everything should be corroborated before you publish. In the rush to be first with the news, you're likely to be burned.
He still hasn't spoken though, so we're none the wiser as to what's happened to him.