Dr. Samuel Rheinhardt is a colorectal surgeon who treats diseases of the colon, rectum and anus, provides screening and advanced endoscopy, and surgical management of inflammatory bowel disease. He also offers advanced surgical decision-making for patients with inherited colorectal cancer syndromes, as well as a non-operative "watch and wait" approach to treating rectal cancer.

Dr. Rheinhardt performs minimally invasive and organ-preserving robotic surgery for colorectal cancer, robotic surgery for colorectal disease, and robotic parastomal hernia repair. Other services include sacral nerve stimulator for fecal incontinence, transanal robotic surgery for treatment of early-stage rectal cancer, Botox treatment of anal fissures, and cleft lift for treatment of pilonidal disease.

Dr. Rheinhardt is an assistant professor in the Department of Surgery, Division of General Surgery, at Saint Louis University School of Medicine.

His research interests include using colonic stenting as a bridge to surgery in cancer patients and tissue-sparing techniques in pilonidal disease.