At Barrington Surgeons, LTD Dr. Daniel Wool and Dr. Daniel Hoeltgen perform a variety of surgical procedures for patients from Barrington, Illinois, and the surrounding Cook, Lake, and McHenry counties. Patients benefit from the doctors' surgical expertise in treating a range of conditions, including appendicitis, GERD, hernias, diverticulitis, and colon cancer, as well as providing bariatric surgeries like ReShape to aid weight loss.