Any doctor who can reduce the polypharmacy (too many medicines) that plagues many older people would be doing a good deed, but in general they have no time or incentive to do so. And despite electronic medical records, not all drug interactions are recognized when they may be significantly contributing to a lower quality of life.
So are geriatricians actually better at this than your FP or internist? From what I see, not unless a family member is specific in requesting it.
“Any doctor who can reduce the polypharmacy (too many medicines) that plagues many older people would be doing a good deed”
in my opinion, the number one goal of any geriatrician should be to analyze and then reduce the number of medications to the fewest possible. Second, analyze the medications’ CYP450 and other interactions, and prescribe different versions if either or both can be eliminated. Third, eliminate deadly drugs like amiodarone. Fourth, eliminate deadly combinations like the kidney-destroying “triple whammy” of NSAIDs, ACE/ARBs, and diuretics. Fifth, if at all possible eliminate quality-of-life-destroying drugs such as beta blockers. etc.