Dr. Nelson specializes in medical oncology and gastrointestinal medical oncology. Dr. Nelson completed his medical education at Uniformed Services University of the Health Sciences F. Edward Hebert School of Medicine in 1996, his residency in internal medicine at San Antonio Uniformed Svcs Health Edu Consortium in 1999, and his fellowship in hematology and medical oncology at San Antonio Uniformed Svcs Health Edu Consortium in 2002.