How old is the oldest doctor in the world? Meet neurologist Howard Tucker
As of his 103rd birthday in July 2025, neurologist Dr. Howard Tucker holds the Guinness World Record for the oldest practicing doctor in the world. The centenarian from Cleveland, Ohio, has been a practicing physician since 1947 and continues to work as a medical educator and legal consultant. His remarkable career and advice on aging have garnered him international attention and a viral following on TikTok.