Dr. Firth received his Bachelor of Science degree in 1976 from Davidson College in Davidson, North Carolina.
Following his undergraduate studies, Dr. Firth received his medical degree from The Medical College of Georgia. He then completed his internship and residency in Internal Medicine at Memorial Medical Center in Savannah. Following his residency, he spent four years as Chief of the Specialty Clinic at Hawley Army Community Hospital at Fort Benjamin Harrison in Indiana. He is board certified by the American Board of Internal Medicine.
Dr. Firth joined Dr. Brooks in practice at Athens Internal Medicine in 1987.