I tried using the Natural Partners dispensary service, Fullscript and had nothing but problems. I definitely wouldn't recommend Fullscript or Natural Partners.
I considered doing business with Mountain States Health Products, but they don't carry many brands and their dispensary service isn't well developed.
Natural Dispensary is very small, their platform needs improvement and they carry only a few brands.
UNFI Wellness is great for health food stores. They supply products that are in open distribution, so they aren't a good fit for practitioners and don't offer a dispensary service.
Emerson Ecologics is by far the best distributor for practitioners! They just don't have any real competition. Their Wellevate dispensary is awesome!