Dr. Donald C. Simpson, D.D.S. announces he is retiring on December 31, 2020 Brace Family Dentistry 0. 12 Patient care will be transferred to Dr. Andrew M. Noble, D.D.S. at Brace Family Dentistry on January 1, 2021 Brace Family Dentistry 3511 Canyon De Flores, Suite B, Sierra Vista, AZ 85650 (520) 378-6684 Donald C Simpson DDS PC 2520 E Wilcox Drive, Sierra Vista, AZ 85635 (520) 458-1999 Dr. Donald C. Simpson, D.D.S. announces he is retiring on December 31, 2020 Brace Family Dentistry 0. 12 Patient care will be transferred to Dr. Andrew M. Noble, D.D.S. at Brace Family Dentistry on January 1, 2021 Brace Family Dentistry 3511 Canyon De Flores, Suite B, Sierra Vista, AZ 85650 (520) 378-6684 Donald C Simpson DDS PC 2520 E Wilcox Drive, Sierra Vista, AZ 85635 (520) 458-1999