I'm not sure about the average score, but I do know that NSU does require a PCAT score but has no minimum score required. (That doesn't mean they don't care about your PCAT score; it just means you are eligible to apply whether your PCAT score is in the 10th percentile or 90th. 🙂)
Their minimum required overall GPA is 2.75, and the minimum GPA for pre-req courses is 2.00.
You may be able to find out the average GPA of applicants v. matriculants if you contact NSU's admissions office directly!