Yes. While I can't find anything useful on a German site, family reunion (type D) visas are issued by all Schengen states, and the French foreign ministry site says:
The long-stay visa is not a Schengen visa ; it is a
national visa that entitles you, whatever the reason for your stay, to
live in France for more than three months.
The visa also entitles you
to transit through another country in the Schengen Area on your way to
France and to move freely throughout the Schengen Area for its entire
period of validity.
The main reasons for issuing this type of visa are
study, work and family reunion.