World’s Oldest Practicing Doctor Is 100 and Has Been in the Medical Field for 75 Years

Left: (Courtesy of St. Vincent Charity Medical Center via Guinness World Records); Right: Courtesy of What's Next? Movie via Guinness World Records

A 100-year-old neurologist, with a Guinness World Records title for being the world’s oldest practicing doctor, shows no signs of wanting to retire.

“The challenge of thinking through a case and getting to help patients, as well as teaching the next generation of neurologists, never gets old,” Dr. Howard Tucker of Cleveland, Ohio, told Guinness World Records.