Monica I. Simionescu, MD

Geoffrey Dang-Vu is board certified in internal medicine and practicing in gastroenterology. He obtained his undergraduate degree from Washington University in St. Louis, MO and earned his medical degree from Rush Medical College in Chicago, IL. He went on to complete his residency in internal medicine and his fellowship in gastroenterology and hepatology at the Medical College of Wisconsin in Milwaukee, WI. Dr. Dang-Vu's medical interests include Crohn's disease, ulcerative colitis, esophageal motility disorders, gastroesophageal reflux disease, and disorders of defecation.

Nathan Schlotthauer, OD, is an optometrist who sees patients in Janesville, WI.

James Bell is board certified in ophthalmology. He obtained his undergraduate degree from Kenyon College in Gambier, OH and earned his medical degree from the University of Louisville School of Medicine in Louisville, KY. He completed his internship in internal medicine from the University of Utah Department of Internal Medicine in Salt Lake City, UT. He also completed his residency in ophthalmology and his fellowship in vitreoretinal surgery from the University of Utah Department of Ophthalmology-Salt Lake City. Dr. Bell participates in both clinic and surgery. His interests include diabetic retinopathy, macular degeneration, retinal detachments, ocular inflammatory disorders, infections of the retina, and retinal artery and vein disorders. Bell is a member of the American Academy of Ophthalmology and the American Society of Retina Specialists. In his free time, Dr. Bell enjoys outdoor activities including hiking, swimming, downhill and cross-country skiing, and fishing. He also enjoys watching college sports and participating in local and international volunteer work.