Try asking in this thread, which is the project's thread in the Austin subforum. Something to keep in mind is that even though this building isn't very old it has already been expanded fairly significantly. Four floors were added on top just a couple of years ago. So be aware that you could come across some floor plans that are not an accurate representation of the building today. Good luck!
https://skyscraperpage.com/forum/showthread.php?t=213131&highlight=dell+seton+hospital