Fiancee had her medical exam today. She made her appointment online (The Catholic University of Korea Yeouido ST.MARY`S Hospital (cmcsungmo.or.kr)) last month. We didn't wait over a month on purpose, it was the earliest available at that time. She heard from others the medical exam could take anywhere between 2 to 3 hours but she was out in 1. Mentioned the staff were very pleasant and answered all of her questions. Since her interview is next Friday, she asked if there was enough time between the exam and interview, just in case something comes up. The staff responded that once they receive appointment notifications they also look at interview dates. If they spot any where there could be time constraints a call would be made to reschedule the interview. Since she didn't receive one, the staff said she was in the clear They also told her, unlike the immigrant visa (DS-260) folks, non-immigrant visa (DS-160) applicants need to return and pick up their sealed package. All in all, her experience at this hospital was very positive. The only negative would be the congested roads in the city. Leave with plenty of time to spare.