Dr. Ailat was mentioned many times as the CMO of the USS Stargazer in The Autobiography of Jean-Luc Picard, but he doesn't even have a Memory Alpha page. What's going on here?
Memory Alpha is the wiki for Star Trek canon as shown in the television series and movies, wherein Dr. Ailat has not been mentioned, and thus not established as canon.
Memory Beta is devoted to the wider Star Trek extended canon as found, additionally, in licenced printed works, video games, and so on. While this character doesn't appear to have an entry there either, it would be the logical place to find or write one.