Is Srila Prabhupada tri-kala jna?

Srila Prabhupada has been described as a saktyavesa-avatara (by Srila Sridhara Maharaja). It has also been described, I believe by Srila Prabhupada himself, that he was a very pious doctor in his previous life. This devotee was thinking that all saktyavesa-avataras are descending from the spiritual world, from their previous life and that they would not have had a previous birth here. It may be argued that some of Caitanya Mahaprabhu's closest assocaiates, like Murari Gupta were Ayurvedic doctors, so this type of occupation or birth does not minimize their divinity in any way. Any comments on this?