Dr. Sullivan grew up in Montana, where he received his undergraduate Biology degree from Carroll College. He attended Creighton University School of Dentistry, completing his DDS in 2011. He worked in private practice in the Tri-Cities area of southeastern Washington state from 2011-2020. During his time in the Tri-Cities, he was involved in the Benton-Franklin Dental Society as well as the local SPEAR study club.
In 2021 he began teaching at CUSOD as a team leader in the department of prosthodontics. In 2024, he transitioned his focus full time to the department of prosthodontics where he enjoys working with students while integrating new technologies into their clinical workflow.