Guan, Jay J, M.D.
Gastroenterology
Unio Specialty Care,
4005 Mission Oak Blvd.,
Camarillo CA 93012
Phone: 805-484-7921,
Inflammatory Bowel Disease, Barret’s Esophagus, NASH, GI motility disorders, Hepatitis B/C, and Eosinophilic Esophagitis.