If the company had sent him to the hospital and paid for the testing, they would own the report written by the doctor and it would have been sent to the company and not to him.
If he went on his own to the hospital, the report would be sent to him, not the company.
I did psychological evaluations for many years, including for Social Security Administration and Texas Rehab. They paid for the testing so the report went to them, not the patient.
The report I heard said he had an undisclosed illness so I suspect he went to the doc on his own hoping it was fixable but suspecting it could ruin his career if it wasn’t.