Prevention First LLC is a primary care and internal medicine practice serving the communities of St. Louis and Chesterfield, Missouri. Under the leadership of Usman Javaid, MD, a fellowship-trained geriatrician, the practice has earned a reputation for personalized, compassionate care. Dr. Javaid cares for adults of all ages, with a special focus on older adults. He speaks English and Urdu. You see the same doctor at every visit.