If I get stopped by a police officer, do I, as a permit holder, have to tell the officer that I have a gun in my possession?

Although there is no legal requirement to identify yourself to a law enforcement officer, it is recommended to do so.

If an officer finds or sees a gun on your person during their contact with you, and you have not identified yourself as a permit holder in legal possession of a firearm, the officer may assume you are carrying the gun illegally and may take defensive action. For the safety of all involved, it is recommended to immediately identify yourself to the officer as a permit holder in possession of a handgun. This action gives the officer some assurance they are most likely dealing with a law abiding citizen.