NOPE. at most places "took gre" is just a check mark to satisfy the school of graduate studies. I never took the gre, don't know how to interpret the scores, and don't even consider them when working on admissions committees. what impresses me is a strong hce base, a solid gpa, community service, and good letters of recommendation from a pa.
Look around to find out how schools weigh the gre. Even if it were universally true that the gre is just a box to check, the schools YOU might be interested in attending could place gre scores high on their list. Several schools near to me do care about it for some reason, and it figures into their applicant score as prominently as gpa. A 3.1 is a bit on the low side. Are you asking about a perfect gre score because you have one already, or just because you need one to make up for a lower gpa? Personally, I consider the test to be ridiculous, and would like to see all schools take emedPa's approach. Not all programs do, though, so research all the schools you like. PA programs requirements come in all shapes and sizes.