This hospital was located in London, and was where Dr. Lewis worked.
History
Episode 1.2
After a London Underground pest controller was bitten and poisoned by an Arthropleura in the Underground, he was admitted to this hospital and placed under the care of Dr. Lewis until he died from the Arthropleura bite.
When Stephen Hart was bitten and poisoned by the Arthropleura as well, he was taken to this hospital and cared for by Dr. Lewis and her staff, until the hospital received a pure sample of Arthropleura venom; with which they successfully located an anti-venom and saved Stephen from dying from the bite.
Episode 1.3
After being saved from dying from the Arthropleura bite, Stephen stayed at the hospital for some time until he made a full recovery; after which he left.