I know in Texas there are rules regarding displaying credentials for APRNs and RNs... So, some of the issue is state boards of nursing rules/regulations. In Texas the nurse is always held to the highest certification, so if a person is an APRN then they are held to that standard regardless of what role they are functioning in. In Texas the APRN must have APRN listed along with the type of APRN such as FNP, AGACNP, CNS, CRNA, CNM, PNP, NNP...It would be Jane Doe, DNP, APRN, FNP or John Doe, MSN, APRN, AGACNP
I do agree it would be nice to have a succinct title. Just not sure how it would work with the 4 APRN titles and then the different APRN recognition's that vary by state. So the state rules/regulations are the issue.