[1] He was named a First Team All-American power forward at Providence College before being selected with the 50th overall pick in the 2005 NBA draft by the Boston Celtics.

Gomes attended Wilby High School, where he was the captain of the basketball team during his final two seasons, averaging 26.9 points, 16 rebounds, 5.0 assists and 3.0 blocks per game.

[2] Gomes played his college career for Providence averaging 18.4 points, 8.9 rebounds, 2.3 assists and 1.6 steals in 35.1 minutes in his four years with the Friars.

[2][3] Wearing number 4, Gomes was expected to play off the bench in his rookie season spelling Celtics star Paul Pierce.

On November 8, 2006, Gomes recorded his first career triple-double collecting 10 points, 12 rebounds, and a career-high 10 assists against the Charlotte Bobcats in the Celtics' first win of the 2006–07 season after an 0–3 start.

[7] Coming off the bench on March 4, Gomes tied his career-high of 17 rebounds and scored 21 points while playing a total of 52 minutes in a double overtime victory against the Minnesota Timberwolves.

[9] On July 31, 2007, Gomes was traded along with Gerald Green, Al Jefferson, Theo Ratliff, Sebastian Telfair, and draft picks, to the Minnesota Timberwolves for Kevin Garnett.

On June 24, 2010, Gomes was traded to the Portland Trail Blazers with the draft rights to Luke Babbitt for Martell Webster.

Oklahoma City traded Gomes to Boston in exchange for second round draft picks in 2014 and 2017 from the Grizzlies; he was subsequently waived by the Celtics.

[22] On August 23, 2016, Gomes was appointed an assistant coach of the Long Island Nets, a new NBA Development League franchise.