HEB Food & Drugs - Sienna Share: Grocers, Retail HEB Food & Drugs - Sienna Visit Website 8900 Hwy. 6 Missouri City, TX 77459 (281) 778-1300 About Map About Grocery Store, Drugstore, Floral, Seafood, Gasoline & Pharmacy. What's Nearby? Distance: 5 10 15 20 25 50 mi.