Dr. Marshall was raised in Fort Walton Beach, Florida and graduated from Choctawhatchee High School. He went on to earn his degree in Biological Science from Florida State University in 1994 before completing his Doctor of Dental Medicine degree with High Honors at The University of Florida in 1998. Dr. Marshall then entered the University of Florida College of Medicine where he earned his Doctor of Medicine degree in 2001. He went on to complete his internship in General Surgery and residency in Oral & Maxillofacial Surgery also at the University of Florida, Shands Hospital. Dr. Marshall then chose to further his training by completing a fellowship in cosmetic and reconstructive surgery at The University of Texas Southwestern Medical Center in Dallas.