Dr. W Patrick Zeller is an endocrinologist in Wheaton, Illinois and is affiliated with multiple hospitals in the area, including Northwestern Medicine Central DuPage Hospital and Ann and Robert H. Lurie Children's Hospital of Chicago. He received his medical degree from Loyola University Chicago Stritch School of Medicine and has been in practice for more than 20 years. Dr. W Patrick Zeller has expertise in treating chronic diabetes, among other conditions - see all areas of expertise. Dr. W Patrick Zeller accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.