TSAI, MARK F MD is categorized under PHYSICIANS & SURGEONS specializing in GASTROENTEROLOGY and located at 18350 Roscoe Blvd. Ste. 210 in or near the Northridge, CA area. Find additional information including website, e-mail, map, and directions - OriginalYP.com®. Find additional PHYSICIANS & SURGEONS at MedicalYP.com ®.