Ansu was under different medical team, but at that time we were doing knee surgeries under Dr. Cugat who is one of the top in the fields and was affiliated to the club since 1992, and many other clubs sent their players to do surgeries with him. but he is/was in his 70's (born in 1950) so Fati, Coutinho and Stegen all went to other surgeons afterwards.
Barca has changed medical teams several times, there is no one who was there all the time, and during a time we actually had very good team (around Pep time till Lucho's)
Currently only the main doctor is staying but the rest of the physical preparation and physios has changed, we brought more experienced and highly regarded specialists who worked with NT and other Liga clubs.
The team doctor doesn't play as big of a role btw, because all surgeries are done externally and usually consults surgeons, his main job is more of diagnostic than anything else.