Yes, SERVICEBERRY is a Scrabble word!

Letter values in Scrabble US: S 1, E 1, R 1, V 4, I 1, C 3, E 1, B 3, E 1, R 1, R 1, Y 4.

Is it a valid word?

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

any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit
edible purple or red berries

Also: service tree.

Not playable in Scrabble US: JUNEBERRY.