Missouri Medical Marijuana Dispensaries Go back to directory. Grassroots OpCo MO, LLC Grassroots OpCo MO, LLC Contact: Steven Weisman 1729 E 7th St Joplin MO 64801 work Work Phone: (872) 302-0289work Work Email: sweisman@grassrootscannabis.comINTERNET Categories: Missouri Medical Marijuana Dispensaries Updated 7 months ago.