Beaty was a 5-time All-Star during his 12 seasons split between the NBA and the ABA. Beaty was drafted by the St. Louis Hawks with the third pick of the 1962 NBA Draft. Beaty played six seasons in St. Louis with the Hawks and then one when the team moved to Atlanta before playing four seasons with the Utah Stars and one with the Los Angeles Lakers. Beaty was named to the inaugural NBA All-Rookie Team in 1963. While playing with the Stars, Beaty won the 1971 ABA Championship and was named the ABA Playoffs MVP.
Beaty retired in 1975 with 15,207 career points and 9,665 career rebounds. After retirement, Beaty served as a coach for the Virginia Squires during the 1975-76 season and was also named a member of the ABA All-Time Team.