I do not understand how US News knows total accepted. The only public information for each medical school is to be found in the the AAMC's Medical School Admission Requirements and even that has to be interpreted..
For each medical school there is a table at the end of the medical school's two page entry. The table gives # of applicants, # interviewed, and then NEW ENTRANTS. Careless readers take that to mean number accepted, but it is not; the figure is the number actually enrolled in the first-year class, a number always smaller than the number accepted. How much smaller then the total accepted varies from medical school to medical school. Some medical schools have to offer more acceptances than others to fill their class. It is not difficult to understand why:
Some smaller state schools accept only state residents; the in-state pool may be comparatively small and many accepted residents choose to attend.
Some medical schools carry so much prestige that a high proportion of the smaller interviewed and accepted pool chooses to attend.
Private, relatively non-prestigious medical schools, with relatively large class sizes have to interview more and offer more acceptances to fill their classes.
Some private medical schools have arrangements with some undergraduate colleges to accept a higher proportion of their applicants, so that the available places on the "open market" are much fewer than total class size.
"Statistics" is not a simple case of putting one number in the numerator and another in the denominater, unless you understand what those numbers really represent.
Simply doing the arithmetic is a very inefficient and probably expensive way to select medical schools to apply to. If you have a premedical advisor, ask her/him first. Many have the experience to know where their advisees are more likely to be considered.