naturopaths can't write 'prescriptions'. not even doctors can write 'prescriptions' because the government doesn't want to admit weed is medicine like other drugs under the FDA.
doctors can write you a 'medical document' under the current regulations health canada put out that you can then take to a licensed producer and get pot mailed to you, or you can bring that to any dispensary and buy weed from storefronts. most dispensaries recognize how difficult it is to get these documents so they will take recommendations from naturopaths or they will just take a 'confirmation of diagnosis' from a doctor confirming you have whatever condition you have without actually recommending that you take marijuana to treat it. it's a midway point for doctors, and provides some level of liability protection for dispensaries.
although a lot of more irresponsible dispensaries popping up these days will basically sell to anyone now because they're not really in the game for the longevity - they're just taking advantage of an unregulated market for the time being to make big bucks and then dip when the regulations make it too hard and cost prohibitive for them to keep operating.