Are non-Special masters useless for GPA boosts?

I have a great MCAT score (518), great undergrad school, great research (paper in Nature, not FP), great volunteering and experience (including a whole year scribbing), but a below average GPA (3.48). I applied during the 2019 entry cycle and did not get in. Part of it Im sure was due to late apps (like September late) but Im aware my GPA didnt help. I thought going into a Masters would help, so I began a Biostats MPH program to help boost my GPA which my former advisor said was a good idea... Are non-Special masters useless for GPA boosts?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pre-Medical - MD Source Type: forums