Kristina Johnson, MD Kristina Johnson, MD, is a primary care physician with AHN Primary Care Institute, specializing in family medicine. She treats patients for overall health, injuries, and illness, as well as focusing on preventive exams, healthy lifestyle education, managing chronic disease, and contraceptive management. Dr. Johnson went to medical school at Medical University of South Carolina in Charleston, South Carolina. She did her residency and her fellowship in faculty development at University of Virginia Medical Center in Charlottesville, Virginia. Dr. Johnson is certified by the American Board of Family Medicine and is affiliated with the American Academy of Family Physicians and the Society for Teachers of Family Medicine. She believes that everyone deserves high-quality, evidence-based care.