About Williams & Francis Oral and Facial Surgery Darren Williams, D.D.S. Dr. Darren Williams has been practicing oral surgery for over 20 years. With an office in Collierville and East Memphis, Dr. Williams is proud to serve Memphis and its surrounding areas. Dr. Amir Francis Dr. Amir Francis joined our practice in July 2019. With Dr. Francis practicing the full scope of Oral and Maxillofacial surgery, we are excited to see what the future holds for our practice.