Does Proficiency Level (or Score) Matter on the PMP Exam?

First of all, PMI doesn't provide a score for PMP Exams. You only get a domain-wise "Proficiency Level" on the PMP Exam score report.

When it comes to PMP exam, a pass is a pass. It doesn't really matter how comfortably you pass or how narrowly you scrape through. The proficiency level is provided to help you identify your strengths and weaknesses.