Dr. Nokuthula Msimanga Joins Medical Associates of North Georgia Medical Associates of North Georgia is proud to welcome its newest physician, Dr. Nokuthula Msimanga, to its medical center in Canton. Dr. Msimanga is the first gerontologist to join the Northside Hospital System, with which Medical Associates of North Georgia is affiliated. Gerontology is the study of the aging process and of individuals as they evolve from middle age to elder adults.Dr. Msimanga is a board-certified and fellowship trained physician in family medicine and geriatrics. Her clinical interests include preventative care, acute and chronic disease management, womens health, and geriatrics. She specializes in primary care with a focus on adults and geriatric patients.