Kaiser paid £1.8m for the software and Internet infrastructure and a further £700,000 for the lease and assets of Webvan's distribution centre. The group plans to use the hub for distributing medical and hospital supplies to its facilities around the country.
Kaiser said it was considering a number of ways to use the technology, including building a Web-based platform that member hospitals and pharmacies could use to order supplies. The company operates in nine states and in Washington DC.
"We do believe that much of the technology platform will help us take a major step forward in our distribution efforts," said Kaiser spokesman Terry Lightfoot. "It poses a lot of possibilities and we'll be looking at all of them."
Webvan - along with its subsidiary, former rival Homegrocer.com - shut down in July after failing to bail itself out of dire financial straits. The company was backed by nearly $1bn (£700,000m) in venture capital but reported a string of quarterly losses.