Kiev Station is the Moscow terminal for trains to/from Kiev and several Eastern and Central European destinations including Belgrade, Zagreb, Bucharest, Budapest, Prague, Vienna, and even Venice. It is approximately 4km from the station to the Ararat Park Hyatt Hotel.
By taxi
The journey from the station to the Ararat Park Hyatt Hotel by taxi takes around 20 minutes with no traffic and should cost $15-20. You can also pre-book a transfer with a driver to meet your train here.
By metro
Kievskaya Metro Station, connected to the mainline station, is on the dark-blue line, three stops west of Ploshchad Revolyutsii, which is around 200m from the Ararat Park Hyatt Hotel. The journey should take less than 20 minutes door-to-door.