https://www.cmu.edu/swartz-center-for-entrepreneurship/educa... lists a certain "Logan Nye, MD". It doesn't give his email address, but I checked a few of the other people and their email addresses don't turn up with the search you linked either.

So I think the GitHub user logannye is most likely a real master's student at CMU, but that doesn't mean he isn't also mass-producing papers of questionable validity with AI.