A native of Port Jefferson, NY, RDML Denihan graduated from the University of Maryland with a Bachelor of Science in Mechanical Engineering in 1997. He is a graduate of US Naval Test Pilot School Class 118 and holds a Master of Science in Aviation Systems from the University of Tennessee. RDML Denihan is also a graduate of the USAF Command and Staff College.
After commissioning in the Civil Engineer Corps, Denihan reported to Naval Mobile Construction Battalion 23, where he held billets as Assistant ALFA Company Commander, Battalion Embark Officer, Assistant Training Officer and Admin Department Head.
Denihan then transferred to the Aerospace Engineering community where he completed several acquisition tours to include instructor at the US Naval Test Pilot School, a member of the F-35 Weapons IPT and as an aircraft battle damage assessor with the Joint Combat Assessment Team (JCAT).
Denihan mobilized twice as a JCAT assessor, first with 2D Marine Aircraft Wing (MAW) in support of Operation Iraqi Freedom and then with 3D MAW as the Operation Enduring Freedom JCAT Forward Officer-in-Charge. He has held various unit leadership roles within the NAVAIR Reserve Program (NRP) and also served on active duty as the Military Director of the Rapid Capability Engineering & Integration Department at NAVAIR. His last staff assignment was the Chief of Staff of the NRP.
His command tours include Maintenance, Modification & Overhaul Detachment A; Fleet Readiness Center-Reserve (FRC-R) where FRC-R earned the Rear Admiral Hugh Smith Award as the NRP Unit of the Year in both 2019 and 2020; and NR Naval Air Warfare Center Aircraft Division.
His personal awards include the Legion of Merit, Meritorious Service Medal (5), Air Medal (Strike/Flight), Navy and Marine Corps Commendation Medal (4), and Navy and Marine Corps Achievement Medal. He was also the 2012 NRP Junior Officer of the Year. RDML Denihan is a qualified Seabee Combat Warfare Specialist, Basic Parachutist and Naval Aviation Observer.