Rear Adm. (ret) Moynihan is a 1986 graduate of the U.S. Naval Academy. He received a Master of Arts degree in Communication from the University of Oklahoma and a Master of Science degree in National Security Strategy from the National War College.
Moynihan served at sea as public affairs officer in USS Enterprise (CVN 65) and commander, Enterprise Battle Group from 1996 to 1998. He served his first public affairs assignment in the Office of Information from 1993 to 1996 as aide to the chief of Information and as action officer on the Navy news desk.
From 2003 to 2005, he was special assistant for public affairs on the staff of the chief of Naval Operations. He served in similar capacities for the chief of Naval Personnel and commander, Naval Surface Force, U.S. Atlantic Fleet. Moynihan also was the director for the Navy Office of Information, Southwest in Dallas, Texas.
Moynihan served as chief public affairs officer for NATO's Allied Command Transformation and director of public affairs, U.S. Joint Forces Command in Norfolk, Va., from 2006 to 2009.
In his final tour on active duty, Moynihan was as the U.S. Navy's Chief of Information (CHINFO) serving as principal spokesman for the Department of the Navy and providing strategic communication counsel to the Secretary of the Navy and the Chief of Naval Operations. He led the Navy's public affairs community of more than 2,500 active and reserve officer, enlisted, and civilian communication professionals.