Quintana made his Big League debut during the 1974 season, appearing in 18 games and posting a record of 2-1 with an earned run average of 4.26 over 12.2 innings of work.
The following season he appeared in only four games, which would be his last, closing out his career with a record of 2-3 over 22 appearances, with an ERA of 5.03 over 19.2 innings, all out of the bullpen, striking out 16 and walking 20.
He would stick around and pitch in the Minor Leagues through the 1983 season, mainly in the Montreal Expos organization, but would never get the chance to get back on a Big League mound again.