From 2003 to 2011 he served as an elder in a "simple church," in Omaha, Nebraska. In 2012-13 Gary served as the Associate Pastor of the San Carlos Community Church in San Carlos, Sonora, Mexico. He and his wife Denise are members of Coram Deo Church in Omaha where he currently serves as an elder. Dr. Nebeker's area of specialization is spiritual theology. He is also a certified spiritual director.