The bottom line is that he has had only one article in a peer reviewed journal, published in 1998, in which he was one of three authors. The other items on his CV are things like a presentation at a meeting, or publications in non-peer-reviewed journals.
There are no third party reliable sources that are actually about this Dr. Disaia.
Being a "real plastic surgeon" (even "a good one") means nothing. Being board certified means nothing.
He appears to specialize in gossiping about the plastic surgery results of celebrities.
His only claim to fame is being a contestant on Wipeout as well as writing his own self promoting blog.