President Donald Trump on Tuesday is expected to undergo his third scheduled medical checkup in 13 months, as outside physicians say they have persistent questions about the nearly 80-year-old president’s health and fitness.

Trump, the oldest president to ever be inaugurated, is scheduled to visit Walter Reed National Military Medical Center for a medical and dental visit, the White House said earlier this month. The president went to Walter Reed in April 2025 for his annual physical exam — and returned in October for what officials characterized as a “scheduled follow-up,” sparking weeks of inquiries about Trump’s diagnosis and procedures that the White House repeatedly sidestepped.

Nearly three months after the visit, Trump and the White House clarified that the president had received a CT scan. His doctor, Sean Barbabella, described the imaging as preventive “to definitively rule out any cardiovascular issues.”

While the White House has a round-the-clock medical team that can privately attend to the president if needed, Walter Reed has facilities for advanced imaging and other procedures. Trump also has made two visits to a Florida dentist since January, the White House has said, with officials saying those were for routine cleaning and care.

The White House has repeatedly said the president is in “excellent health,” including in response to questions this weekend, citing medical reports produced by White House physicians, including one from Barbabella in October that said Trump “remains in exceptional health."