She is a graduate of LSU School of Medicine - Shreveport. A native of DeRidder and graduate of McNeese State University, Dr. Null completed her internship and residency at the Naval Hospital Pensacola in Florida and is board certified by the American Board of Family Medicine. A family medicine physician on staff at the Naval Hospital Pensacola since 2001, she joined the teaching staff in 2004, and became an assistant professor of family medicine at the Uniformed Services University of the Health Sciences in January 2007.