Looks like he has 24 events to get 266 fedex points.
https://www.pgatour.com/fantasy/medical-extensions.html
I think he strategically picked the start of the season to begin his quest. 266 is less than what #125 had last year in a similar number or tournaments., so basically he's in a better boat most regular players, and major medical exemption is a decent category that gets him into all the regular tournaments.
The big question is whether he can re-gain his form over a year. Apparently he registered last week too and withdrew, so we'll have to see if this is going to be the week.