Our Physicians

Gastroenterology Specialists of Gwinnett has five gastroenterology specialists who are all board certified, and provide excellent patient care in the areas of digestive evaluation and treatment. To learn more about each of our specialists, click on their picture or name below.

Brad Lord, M.D.

W. Gordon Tanner, Jr., M.D.
William Gordon Tanner, Jr., M.D.

Zack Z. Martin, M.D.
Zack. Z. Martin, M.D.

Jae W. Nam, M.D.

Jennifer A Curtis, M.D., Gastroenterologist

Jennifer Curtis, M.D.