Bexar County Directory Margie Anderson Nutrition Education Assistant 210-732-9300 Alejandra Castillo Youth Associate 210-732-9300 Andrew Chavez Extension Assistant 210-732-9300 Dario Dominguez Agent 210-732-9300 Dario.Dominguez@ag.tamu.edu Evelyn Green Nutrition Education Assistant 210-732-9300 Sylvia Guerra Nutrition Education Associate 210-732-9300 Sylvia Villalpando Administrative Associate I 210-732-9300