Vaidyanatha Dikshita was a Brahmin belonging to the Bharadwaja Gotra who is believed to have lived in South India either in the 14th century or in the 15th century A.D. He was the author of Jataka Parijata, the Sanskrit treatise written in verse-format on the predictive portion of Hindu astrology. His father, Venkatadri Dikshita, was the son of Anniah Dikshita.
Not much is known about the life of Vaidyanatha Dikshita except for his own very brief statement in Jataka Parijata. According to Prof. Katva, Vaidyanatha lived in the 14th century A.D. in Mysore. But, V.Subramanya Sastri, the translator and commentator of Jataka Parijata, not agreeing with the attribution of authorship of Sarvartha Chintamani to Venkatadri Dikshita put forth the possibility of Vaidyanatha Dikshita having been born between 1425 and 1450 A.D. on the basis of the fact that Kesava Daivajna, the author of Muhurata Tattva, a Sanskrit treatise on Hindu astrology, and a disciple of Vaidyanatha Dikshita, and who belonged to Nandigram (the present day Nanded, Maharashtra) and who must have been born around 1456 A.D., was the father of Ganesa Daivajna who in 1520 A.D. wrote the Sanskrit treatise on astrology titled - Graha Laghava.
Vaidyanatha also wrote Patrimargapradeepika a text-book on calculating the birth-chart etc., and the Janamapatrika.