Dr. William Moretz was raised in Augusta, Georgia and is a graduate of Davidson College and the Medical College of Georgia. He completed his residency in Otolaryngology-Head and Neck Surgery at the Medical College of Georgia and is board certified by the American Board of Otolaryngology-Head and Neck Surgery. Dr. Moretz serves as the president of The Georgia Medical Society.

Dr. Moretz specializes in the medical and surgical treatment of children and adults. His special interests in the practice include endoscopic thyroid and parathyroid surgery, pediatric otolaryngology, and ear surgery. He has published several textbook chapters and articles in major otolaryngology journals on subjects including thyroid disease, chronic sinusitis, and head and neck cancer.

He moved to Savannah in 2008 with his wife and two children. His wife Katherine Moretz is a native of Savannah and a pediatric neurologist at Savannah Neurology Specialists.