An amsa-avatara of Lord Vishnu, he was born on Aswiyuja Bahula Trayodasi during the churning of the ocean.
Dhanvantri arose from the churning paying his obesance to lord Vishnu who was in his Kurma Avatara then. He was named Abja. He requested a Yagnabhaaga but was denied. But Vishnu grants him a boon.
In Tamil Nadu, we find Dhanvantri temples in Walajapet and in Coimbatore.
Om Shanti shanti shanti!