Evita Clinic is near to Apgujeong Station, Gingham-gu, Seoul.
Use above site.
There are information desk in the Airport.
You can ask how to get the subway to the Apgujung station.
They can speak English well.
Also for the limousine, you can ask driver where is Apgujeong-dong and there are announcement for bus stop in English in the limousine.
It is better to exchange for Korean currency for Accommodation fee and treatment fees.
• Airport Limousine Bus
– It take about 50min.
– The stop for Limousine Bus No. 6010 (bound for the Incheon International Airport) is located in front of Exit #1 of Apgujeong Station (Subway Line 3)
From Apgujung Station