Lord Dhanvantari is regarded as an incarnation (avatar) of Lord Vishnu. He is the Hindu god of medicine. He has been called the Father of Ayurveda.
This post is about Narad Muni and Story Associated with Sage Narada. Narad Muni is a Vedic sage. He is mostly referred to as the king of all sages or rishis. He is called as Rishiraj.