The Houston Fire Department said first responders received a call at about 10:30 a.m. about a fall at the hospital.
Firefighters found that a worker fell about 15 to 20 feet from the third floor to the second floor inside the facility, which is undergoing construction.
The 32-year-old man was not wearing a harness at the time of the fall, according to firefighters.
SkyEye was above the building when first responders used a crane to remove the worker from the construction site.
He was taken to the emergency room for his injuries, and it's unclear how he fell.