HALLOWELL — A nonprofit company is opening a medical marijuana dispensary in Hallowell.

Wellness Connection of Maine plans an open house to mark the opening of its Hallowell facility today. It’s one of three dispensaries being prepared for opening by Wellness Connection in the coming months. The others are in Portland and Brewer.

Wellness was called Northeast Patients Group until it changed its name last month.

Hallowell Mayor Charlotte Warren will be a guest speaker at today’s opening.

Maine voters in 2009 approved a referendum that changed Maine’s decade-old medical marijuana law by expanding the conditions under which people could be prescribed the drug to ease pain. The voter-approved law allows retail dispensaries where patients may legally buy marijuana with a doctor’s prescription.