UT San Antonio
UT Health San Antonio

William Ketterer, DO

Assistant Professor/Clinical

Dr. William Ketterer is a board-certified Hospitalist who joined UT San Antonio as an Assistant Professor/Clinical in August 2026. Dr. Ketterer earned his Doctor of Osteopathic Medicine at the Idaho College of Osteopathic Medicine in 2022 before completing his Internal Medicine residency at the Wright State University Boonshoft School of Medicine in 2025. He also holds a Bachelor of Art in Biology from Saint Louis University, which he earned in 2010.