Performed By Alan H. Wang, MD 4.7 Gastroenterology Joliet Lockport Oakbrook Terrace Plainfield Naperville Warrenville Downers Grove Tinley Park William A. Mourad, MD 4.6 Gastroenterology Naperville Plainfield Warrenville Lockport Downers Grove Richard S. Song, MD 4.8 Gastroenterology Itasca Hoffman Estates Bloomingdale Matthew B. Smith, MD, FACG 4.7 Gastroenterology Lisle Oakbrook Terrace Elmhurst Hinsdale Downers Grove Bradley D. Shapiro, MD 4.7 Gastroenterology Itasca Hoffman Estates Nisha Shah, MD 4.5 Gastroenterology Lisle St. Charles Warrenville Winfield Elmhurst Adam D. Klugman, MD 4.8 Gastroenterology Naperville Hinsdale Oakbrook Terrace Warrenville Downers Grove Oak Park Kashyap N. Katwala, MD 4.7 Gastroenterology Interventional Endoscopy Naperville Oakbrook Terrace Lockport Warrenville Plainfield Downers Grove Mark E. Dubin, MD 4.4 Gastroenterology Hoffman Estates Itasca East Dundee Asad Aziz, DO 4.8 Gastroenterology Bloomingdale Hoffman Estates Itasca Rameez Alasadi, MD 4.6 Gastroenterology Interventional Endoscopy Naperville Elmhurst Winfield Niraj Ajmere, MD 4.7 Gastroenterology Lisle Winfield Warrenville Naperville