Yes, GOODMAN is a Scrabble word!

Letter values in Scrabble US: G 2, O 1, O 1, D 2, M 3, A 1, N 1.

Is it a valid word?

GOODMAN is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

United States clarinetist who in 1934 formed a big band (including black as well as white musicians) and introduced a kind of jazz known as swing (1909-1986)

Also: benny goodman, benjamin david goodman, king of swing.