I've encountered medical scribes twice now:
1. During a trip to my ophthalmologist, the doctor did the examining and talked the entire time (not to me) while the scribe took the notes.
2. During my most recent trip to the ER (for a relative, not for myself), the doctor came in with a medical scribe. The scribe wheeled in a cart with a laptop and stood quietly in the corner. The scribe's job was to do nothing but take notes for the doctor while he examined the patient.
In both settings, the setup seemed to work very well. Perhaps this is the answer to the "over-data" problem described in the OP.