Brian Mailey, MD

Dr Collin Chen specializes in plastic and reconstructive surgery of the face, offering care for both adult and pediatric patients. He performs a variety of surgical and non-surgical procedures to enhance both function and appearance, including rhinoplasty (nose jobs), skin cancer reconstruction following Mohs surgery, reconstruction after facial trauma, and scar revisions. He also offers minimally invasive cosmetic procedures, such as Botox® and filler injections. Dr Chen is an assistant professor in the Department of Otolaryngology – Head & Neck Surgery at Saint Louis University School of Medicine. He practices primarily in the state-of-the-art SLUCare Facial Plastic and Reconstructive Surgery office in West County.

Dr. Wissam Kiwan treats a wide range of gastrointestinal conditions and offers expertise in advanced endoscopy, including endoscopic retrograde cholangiopancreatography (ERCP), diagnostic and therapeutic luminal endoscopy, and endoscopic ultrasound (EUS). He offers medical and endoscopic management of biliary and pancreatic diseases, gastric disorders, small bowel and large bowel diseases, and esophageal conditions. He also offers staging and sampling of GI tract cancers, such as esophageal, gastric, and colorectal cancers. Dr. Kiwan's research interests include pancreaticobiliary diseases, medical education, endoscopy training, colon cancer prevention and treatment, endoscopic treatment of GI tract lesions, and bariatric endoscopy.