If the Baptism was performed properly, it doesn't even matter if his ordination was valid, it still works and the Baptism is valid. God is behind the power of the Sacraments and, as long as the form and matter are valid, then they are fine. Anyone can baptize, even lay persons do it in some circumstances.
You could contact the parish and see if there is a record of your baptism, which should be the case. I wouldn't worry.
If someone from the parish or Bishop's office tells you there were problems with the sacraments he did, then you could have more of an investigation to see if a provisional Baptism is recommended.