Dr. Johnson graduated from the Medical University of South Carolina in 2004. He then completed his Med-Peds residency here in Greenville in 2008. After graduation, Dr. Johnson served as a Med-Peds hospitalist at Greer Memorial Hospital for four years. Gregg now serves as one of our community Med-Peds faculty members while practicing outpatient Med-Peds at Heritage Pediatrics and Internal Medicine in Wren, South Carolina. He is also very involved with global health trips with our Med-Peds residents.