Robin Hanson had a 2013 blog post titled "Hail Scott Siskind" - the surname was redacted from both the post title and the URL slug sometime between 8 Jan [1] and 24 June 2020 [2] (Slate Star Codex was deleted on 22 June 2020 [3]).
So if a patient had googled "Scott Siskind" before the NYTimes contacted him, they may well have found the post linking the name to the blog.