MGH McLean and columbia spring to mind. maybe some other programs in boston. mass mental health has good DBT program.
many places that claim to offer DBT are not really offering true fidelity DBT but DBT-lite.
DBT is not a core requirement for psychiatrists so full training in DBT is elective. There are no places that would provide every single resident with the full DBT training. Even at UW it is an elective and can be done to different degrees of intensity, most people do not do the full training. Also though Marsha Linehan is still kicking around she has absolutely no contact with the psychiatry residents whatsoever as they are on the bad side of the split.