Dr. Nash received his MD from the University of Texas, Health Science Center in San Antonio, Texas.  He completed is Residency in Internal Medicine at the Cleveland Metropolitan General Hospital, Case Western Reserve, School of Medicine in Cleveland, Ohio.  He also completed a fellowship in Hematology and Medical Oncology at the University of Arizona, School of Medicine, in Phoenix, Arizona.  

Prior to working at the Longstreet Clinic, Dr. Nash served as the President and Medical Director of the Don and Sybil Harrington Cancer Center in Amarillo, Texas and as the Medical Director of the LaFortune Cancer Center, St. John Medical Center, in Tulsa, Oklahoma.  He currently serves as the Medical Director of Oncology Services at the Northeast Georgia Medical Center.

He is board certified in Internal Medicine and Medical Oncology and is licensed to practice in the states of Texas, Oklahoma, and Georgia.