Hixson & Bumgarner, Orthodontics of 1004 Big Oak Court in Knightdale (just look for the COWS on Knightdale Blvd. just off of I540) has been selected as the July Knightdale Chamber of Commerce Business of the Month. A Silver Chamber Champion, Dr. Mark Hixson & Dr. Steve Bumgarner have been great supporters of the Chamber, said Jennifer Bryan, Chamber executive director. Hixson & Bumgarner, Orthodontics, DDS, PA has served the Wake County area with orthodontic care for more than 30 years.