The incident happened around 10pm on Saturday 27th April in Main Street in Fauldhouse.
A 32-year-old man had just left the Scotmid store and walked past the Golden Fry Chip Shop when a group of four or five men exited a dark-coloured Transit van and began attacking him.
Inquiries are ongoing and anyone with information is asked to come forward.
"Similarly, if you have information that can help us identify the suspects, or that may be of use to this investigation, please also get in touch."