Some medical professionals at Walter Reed National Military Medical Center had to sign nondisclosure agreements when President Donald Trump visited there back in Nov., a person close to the matter said. As expected, the request made some of the hospital staff anxious.

More than one of the staff members at Walter Reed National Military Medical Center that was asked to sign the NDA refused, according to the person. Details about how many people signed and how many turned down the request are still few and far between, however, Trump uses NDAs in a bid to restrict leaks of personal information. This was first reported by NBC News.

The White House released a statement stating that anyone treating the president would be already obligated to confidentiality through current rules but did not deny that NDAs were requested. Deputy press secretary Judd Deere said any physician treating Trump is bound by patient-physician confidentiality guaranteed under HIPAA, but refused to divulge more details regarding the internal procedures.

Trump's last year's visit to Walter Reed triggered conversations about the state of the president's health. Since the visit wasn't already listed on his public schedule, reporters had to be summoned quickly to accompany him to the hospital.

While he usually takes his Marine One helicopter to visit Walter Reed, Trump rode in a motorcade to visit there. According to the White House, Trump's short trip to the hospital was for getting a head start on his annual physical, without revealing the procedures or tests he undergoes there that could not be performed at the White House, which has a few medical facilities.

Keeping other details under wraps, the White House only revealed that Trump got a quick exam and labs. The president stayed in the hospital for over two hours.

After all sorts of speculations began doing the rounds, his physician, Dr. Sean Conley finally broke the silence about Trump's visit. In a memo, Conley revealed that the president wasn't experiencing chest pain, and wasn't treated for an urgent or acute issue, CNN reported.

Conley went on to confirm that the president did not undergo any sort of specialized neurologic or cardiac evaluation. After announcing that he had tested positive for COVID-19, Trump returned to Walter Reed last weekend and was treated by doctors from the hospital, and White House Medical Unit physicians and other experts from Johns Hopkins University.

There were no details about whether that team had to sign NDAs related to the president's health. Conely repeatedly evaded questions about the President's recovery during the news conferences, attributing his refusal to patient confidentiality.