Dr. Andrus attended medical school at LSU School of Medicine in 1975. He went on to complete his OB/GYN Residency through LSU from 1975 through 1979.
Dr. Andrus is Board Certified by the American Board of Obstetrics and Gynecology.
Dr. Andrus was Chief of Staff at Woman's Hospital in 1991. He also held positions as a member of the Board of Directors from 1995 to 2002, where he was named Chairman of the Board in 2000.