Sheikh Mohamed thanked the medical teams out in the field as part of the visit.
“[They] are the first line of protection of the UAE [and] their sacrifices safeguard our health,” he said.
Abu Dhabi Health Services Company on Wednesday said the drive-through facility had been permanently closed.
When it opened, the centre transformed testing with results swiftly that were delivered through text messages and the Seha smartphone app.
Similar centres across the UAE soon opened as part of the battle against pandemic. People could later also access vaccines there.
Testing and one of the world's fastest vaccination campaigns have been central to the UAE curbing the pandemic.
Cases have dropped sharply in recent months. The UAE reported 75 coronavirus cases on Wednesday, after an additional 278,127 tests were carried out.
Authorities, meanwhile, advised the public to visit the Seha website or download its smartphone app to book appointments at other sites across the emirate.