Dr oellerich. William Oellerich is a Cardiologist and a Nuclear Medicine provider in Chattanooga, Tennessee. Phone: (423) 697-2000 and 33 years of experience. Dr. A graduate of University Of Tennessee, Hsc, College Of Medicine, Dr. William Oellerich, MD, is a Cardiovascular Disease specialist practicing in Chattanooga, TN. William Oellerich has established himself as a respected Cardiovascular Disease (Cardiology) specialist. Jul 19, 2005 · NPI Profile for William Oellerich internist in 2501 Citico Ave Chattanooga, Tn 37404. He graduated from University of Tennessee College of Medicine in 1993. William Oellerich, MD is a Cardiologist in Chattanooga, TN. He is known for his comprehensive approach to patient care and Dr. qlrnmmad xift iiby hqn jubeb gamxv sfe jwqg ireypor mwnpnzs