 Congressman John Rose, Republican from Tennessee, today on the House floor. A story from the New York Times. An expert on Parkinson's disease from Walter Reed National Military Medical Center visited the White House eight times in eight months, from last summer through this spring, including at least once for a meeting with President Biden's physician, according to official visitor logs. The expert, Dr. Kevin Kennard, is a neurologist who specializes in movement disorders and recently published a paper on Parkinson's.