Measuring 2.51 metres, 29-year-old Sultan Kosen of Turkey is listed in the 2011 Guinness World Records at the tallest living man.
Kosen visited the university in May 2010 for treatment for a disorder called acromegaly, which is usually caused by a tumour in the pituitary gland.
"He's done very, very well, fortunately," surgeon Jason Sheehan said.
The Richmond Times-Dispatch reports that Kosen was placed on a new medication that could potentially help control the production of growth hormone and stop his continued growth.
According to university officials, doctors in Turkey say Kosen has stopped growing.