Dr. David Z. Schreier is a general surgeon in West Hills, California and is affiliated with multiple hospitals in the area, including Los Robles Hospital and Medical Center and West Hills Hospital and Medical Center. He received his medical degree from University of California, Davis, School of Medicine and has been in practice for more than 20 years. Dr. David Z. Schreier has expertise in treating mastectomy, colon removal, among other conditions - see all areas of expertise. Dr. David Z. Schreier accepts Medicare, Aetna, Humana, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. David Z. Schreier is highly recommended by patients.