These areas are among his clinical interests: cancer surgery, rectal cancer, and gastrointestinal (GI) endoscopy. Dr. Cheng is an in-network provider for several insurance carriers, including Humana HMO, Humana Bronze, and Humana Catastrophic. Before performing his residency at Erie County Medical Center, Dr. Cheng attended the University of Southern California (USC), Keck School of Medicine. He is affiliated with ThedaCare.