Dr. John Caleb Grenn, MD

Dr. John Grenn is an internal medicine and pediatric physician who earned his medical degree from the University of Mississippi School of Medicine. With nine years of experience in practice, he provides comprehensive care for both adult and pediatric patients across a wide range of medical conditions.

Dr. Grenn practices at multiple locations throughout Jackson and Flowood, Mississippi, with affiliations including the University of Mississippi Medical Center, Children's of Mississippi Hospital, and Merit Health River Oaks. He treats patients with complex respiratory conditions like COPD and chronic bronchitis, as well as advanced kidney disease. His practice includes performing comprehensive diagnostic blood work and coordinating speech therapy services for patients who need specialized rehabilitation support.