Unable to answer "What are the opening hours here?" – Ayia Thekla Medical Center (Clinic) – https://osm.org/node/4750883568 via StreetComplete 58.2:

Still marked, but nobody has been seen here for at least 2 years.

Attached photo(s):
https://westnordost.de/p/241071.jpg
https://westnordost.de/p/241072.jpg