hephaestus
No. There was an ancient Greek god called Uranus, or Ouranos.
There is no Greek god of hockey. The first organized game of hockey was played in 1872. Ancient Greece was was called Ancient Greece because it happened in Ancient times. Therefore, there is no Greek god of hockey.
Asclepius was the ancient Greek god of medicine.
Hermes
Hephaestus was the ancient Greek god of fire, metalworking, stonemasonry and the art of sculpture.
He is the god of blacksmiths, the forge, and fire. He was one of the very few ugly gods.
The ancient Greek word for God is Theos, and it means "God."
He is the Greek god of fire, and especially blacksmith's fire, and he is also the god of volcanoes
The greek god of fire was Hephaestus (the roman name of Hephaestus was "Vulcan"
The ancient Greek god named Hermes, was duplicated by ancient Rome as the god Mercury. As an aside, the closest planet to the Sun bears the same name, namely Mercury.
The ancient Greek god of wine and revelry was called Dionysos, or sometimes Bakkhos. His Roman name was Liber.
Hephaestus is the Greek God of fire and metalworkers.