If you make a reverse image search, you will find countless websites, usually about medical themes, that have this image inlined, and it has been used for a book cover. Yet it took me quite a while to find out who the artist was.
This is strange, since it was the winning entry for the Prix de Rome in 1808, when the subject was once again (as it had been in 1774) Erasistratus Discovering the Cause of Antiochus’ Disease. Even though he won this prestigious prize, there is very little information about Alexandre Charles Guillemot on the web. He was born in 1786 and died in 1831, that’s about all.