President
Basem Jassin, M.D.
800 W. Lampasas Ste. B
Ennis, TX 75119
Phone: (972) 875-9700

Executive Secretary 
Sandra Hartsell
507 N Highway 77 Ste 700-B
Waxahachie, TX 75165-1885 
Phone: (972) 923-2738
Fax: (972) 935-9230