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Our GI Specialists

 

Stephen T. Amann, M.D.
Dr. Stephen Amann graduated from Creighton University School of Medicine in Omaha, Neb. He did his internal medicine training at the University of Florida College of Medicine in Gainesville, Fla., then served as chief resident/instructor in the Department of Medicine. Dr. Amann completed a fellowship in gastroenterology at the University of Florida. He served on the gastroenterology faculty of the University of Florida until joining Digestive Health Specialists, P.A., in Tupelo in 1999. He has published numerous articles and book chapters regarding gastroenterology and pancreatic disease. He has served as a reviewer for leading gastroenterology journals. Dr. Amann is board certified in gastroenterology and is a Fellow of the American College of Gastroenterology and member of the American Gastroenterology Association, American Society of Gastrointestinal Endoscopy and the North American Pancreatic Study Group. He served as president of the Mississippi Gastroenterology Society from 2010-2012.

John B. Averette, M.D.

Dr. John Averette joined Digestive Health Specialists, P.A. in August 2006. He attended undergraduate school at Vanderbilt University in Nashville. Dr. Averette attended medical school and completed his residency and internship at the University of Alabama School of Medicine in 2003. He completed his fellowship in gastroenterology at University of Florida in Gainesville in June 2006. Dr. Averette currently serves as medical director of the Center for Digestive Health.

Barney J. Guyton, M.D.

Dr. Barney Guyton earned a bachelor’s degree in biology from Mississippi College. After graduating from the University of Mississippi School of Medicine, he completed his internship and residency at the University of Mississippi Medical Center. He completed a gastroenterology fellowship there in 1982. Dr. Guyton is board certified in internal medicine and gastroenterology and has been in practice in Tupelo since 1979. He is a member of the American Medical Association, Mississippi State Medical Association, American Gastroenterology Association and American College of Gastroenterology. He served as chairman of the NMMC Medical Staff in 1995, chairman of NMMC’s Credentialing Committee in 2000 and chairman of the Board in 2006. Dr. Guyton served as President of the Mississippi Gastroenterology Society in 2005. Dr. Guyton reduced his patient practice in December 2013 but continues to perform endoscopies at the Center for Digestive Health.

Roger L. Huey, M.D.
Dr. Roger Huey joined Digestive Health Specialists, P.A. in September 2005. He received a bachelor’s degree in biology from Tougaloo College. He earned his medical degree from the University of Mississippi School of Medicine in Jackson and completed a gastroenterology fellowship there in 1997. Dr. Huey served as chief medical resident while at University of Mississippi School of Medicine. Dr. Huey is board certified in internal medicine and gastroenterology.
Noel K. Hunt, M.D.
Dr. Noel Hunt joined Digestive Health Specialists, P.A. in October 2008. He completed undergraduate school at the University of Mississippi. He graduated from the University of Mississippi School of Medicine and completed his residency and internship there in 1997. Dr. Hunt practiced internal medicine with North Mississippi Medical Clinics in Tupelo until he decided to enter a gastroenterology fellowship in 2005. He completed this GI fellowship at University of Alabama-Birmingham in October 2008.
C. Allen Justice, M.D.
Dr. Allen Justice joined Digestive Health Specialists, P.A. in August 2010. He earned a bachelor’s degree in chemistry from Mississippi State University. He attended medical school at University of Mississippi School of Medicine and completed his residency and internship at University of Tennessee in Memphis in internal medicine and pediatrics. Dr. Justice completed his fellowship in gastroenterology at UT Memphis in July 2010. He is board certified in internal medicine, gastroenterology and pediatric medicine.
 
W. Garrett Ogg, M.D.
Dr. Garrett Ogg joined Digestive Health Specialists, P.A. in July 2012. Dr. Ogg earned a bachelor’s degree in microbiology from Mississippi State University. He completed his medical training at the University of Mississippi School of Medicine in Jackson, and an internal medicine residency at the University of Virginia in Charlottesville. He recently completed a fellowship in gastroenterology at the University of Louisville in Kentucky, where he served as chief fellow. He is a diplomat of the American Board of Internal Medicine, and is a member of the American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy.
Samuel C. Pace, M.D.
Dr. Sam Pace earned a bachelor’s degree in chemistry from Mississippi State University before entering medical school at the University of Mississippi School of Medicine in Jackson. He completed his internship at the University of Mississippi School of Medicine in 1976 and his medical residency in internal medicine in 1978. He was a Lieutenant Commander in the U.S. Navy from 1978-1980 at Camp Pendleton, where he taught family residents at the Naval Regional Medical Center. He completed a fellowship in gastroenterology at the University of Mississippi School of Medicine in 1986. Dr. Pace served as president of Mississippi Gastroenterology Society from 1989-1991. He also served as governor for Mississippi for the American College of Gastroenterology from 1989-1991. He was chairman of the NMMC Medical Staff in 1993. Dr. Pace is board certified in internal medicine and gastroenterology and is a member of the American Medical Association, American College of Physicians, American Gastroenterology Association and American College of Gastroenterology. Dr. Pace retired from practice in 2013 but is still very active in with recruiting, marketing and long-range planning for the group.
John O. Phillips, M.D.
Dr. John Phillips earned bachelor’s and master’s degrees in biology from the University of Memphis. He graduated from the University of Alabama School of Medicine in Birmingham 1989. Dr. Phillips completed his internship, residency and fellowship at the Mayo Clinic in Rochester, Minn. He served as an assistant professor at University Hospital and Kirklin Clinic in Birmingham. Dr. Phillips has a special interest in treating patients with liver diseases and hepatitis. He is a member of the American Medical Association, American Gastroenterological Association, American Society for Gastrointestinal Endoscopy and the American Association for the Study of Liver Diseases. Dr. Phillips serves as the director of the Clinical Research Program for Digestive Health Specialists, P.A.