What is your plan to improve in verbal? Also, how much of an anomaly do you consider your score to be? It's hard to draw significance from the real mcat and the practice material that is out there for this 2015 version of the test. Granted, verbal hasn't changed much if it all, but only if you were consistently scoring maybe 75 or 80% or higher on the CARS question packs and I would consider a retake.
Another question is can you maintain your psych/PC knowledge? Because your scores are unbalanced you have room for improvement in bio/biochem and of course room in CARS too which could easily offset dropping 1 or 2 points in psych/PC.
All in all though, I would only retake a 507 if you are confident you could score 515+. One average score is better than taking the exam twice and only improving by a few points. With a 507 you are sitting at ~29 old score which is certainly good enough to get an MD interview if you apply early and broadly with good ECs, although with a ~29 NYU and Mt. Sinai would be extreme reaches. I wouldn't suggest putting such high stock any particular school though: admission is a crap shoot even with high stats. Best of luck.
