Lions coach Jim Schwartz says Stafford will have his injured right shoulder evaluated Monday by Andrews in Alabama.
Schwartz says he doesn't know if a decision about Stafford's status this season will be made at that time.
Stafford separated his throwing shoulder in Week 1 and missed five games. He has played in just three games this season and aggravated the banged-up right shoulder Sunday against the New York Jets.
Shaun Hill is expected to start at Buffalo, where the Lions hope to avoid an NFL-record 25th straight setback on the road.
Stafford was out of six games last year because of injuries after being drafted No. 1 overall.