I didn't know it was another hospital with the same initial sound (serious x)

I'm an incomparable human being. I'm trying to get my hands on a pair during summer vacation. I'm searching hard
 
and marking it on the map app. Meanwhile, there are a lot of mentions of the hospital called ㅈㅅㅌ, so I mark it and look for the director, but the director's initial last name is different!!!!
 I wonder if he was there before... I was just thinking about it, and today I realized that there is another hospital with the same initial name in a completely different location. I wrote my first post to ask where the hospital mentioned in the double number is.
 
1 Apgujeong
 2 Gangnam
 
Please tell me where it is.