After his initial stint in the NBA from 1992 to 1998, where he became the heaviest player in league history, Miller played overseas and for semi-professional American teams.

He played for various NBA teams over his eight-year career, including the Suns (1992–94, 1999–2000), Detroit Pistons (1994–95), Toronto Raptors (1995–96 and 1997–98), Dallas Mavericks (1996–97) and Sacramento Kings (1998–99).

Miller was known as a talented center with good passing skills, averaging 12.9 points, 7.4 rebounds, 2.9 assists, 1.9 blocks and 1.4 steals per game at his peak (1995–96).

After a stint in Puerto Rico, Miller returned to the Wizards in October 2004 and next played with the Texas Tycoons in the ABA until February 2005.

[5] Miller reportedly relocated to Mesa, Arizona in August 2012 and was a car salesman, working for former basketball player Alvin Heggs.

[7] Miller was inducted into the University of Arkansas Sports Hall of Honor in September 2016[8] and was selected as an SEC Basketball Legend in January 2017.

[citation needed] In September 2020, Miller was reported to be retired and living in Phoenix, with a claimed weight of 278 lb (126 kg), spending his time participating in basketball camps and playing with his grandchildren.