You do not need to file an amended state return if there was no change to your state return as a result of amending your federal return. PTIN numbers are Preparer Tax ID numbers. If you are not a tax professional, you do not have a PTIN.
https://ttlc.intuit.com/community/amending/help/do-i-need-to-amend-my-state-if-i-amend-my-federal/00...
