In a 10-season career, Carreon was a .277 hitter (557-for-2012) with 69 home runs and 289 runs batted in (RBI) in 738 games played. Defensively, he recorded a .987 fielding percentage playing at all three outfield positions and first base. Carreon was a rarity, in that he threw left-handed but batted right-handed, as a non-pitcher.[citation needed]
Carreon has the most pinch-hit home runs for the New York Mets with eight.[1] As a member of the Giants, he won the 1995 Willie Mac Award honoring his spirit. He was traded from the Giants to the Indians for Jim Poole and cash on July 9, 1996. He was batting .260 with 22 doubles, three triples, nine homers and 51 RBI at the time of the transaction. The Indians addressed a need for an additional first baseman, a position of which the Giants had a surplus.[2]
Carreon spent two years playing pro ball in Japan for the Chiba Lotte Marines, after the 1996 season.
Late in 1999, Carreon was reported as missing by his mother, but was later found safe.[3]
On December 13, 2007, Carreon was named in the Mitchell Report. Kirk Radomski alleged that he sold Dianabol pills to Carreon while Carreon played for the Giants.[4]