Rear Admiral Creighton, a native of Ridgefield, Connecticut, graduated in 1988 from the University of Notre Dame with a Bachelor's degree in Business Administration and was commissioned through the NROTC program. She graduated from the Naval Postgraduate School in 1997 with a Master of Science in Information Technology Management. Creighton has served in information dominance billets at all levels, afloat and shore, with multiple command and officer in charge assignments.
Creighton has had numerous fleet and shore assignments. She has also commanded both Naval Computer and Telecommunications Station Sicily and Naval Computer and Telecommunications Station Bahrain.
Creighton is currently serving as the director for Command, Control, Communications and Cyber, U.S. Pacific Command.