Colon and Rectal Surgery Clinical Expertise Faculty Faculty Division of Colon and Rectal Surgery, Department of Surgery Home About Campus & Community Resources Surgery: Divisions > Colon and Rectal Surgery > Faculty Meet Our Faculty Joseph Carmichael, MD Joseph Carmichael is a professor of surgery, chief medical officer of UCI Health and chief of the Division of Colon and Rectal Surgery at UCI School of Medicine. Steve Mills, MD Steve Mills is a professor of surgery and program director of the Colon and Rectal Surgery Fellowship program. Skandan Shanmugan, MD Skandan Shanmugan is an associate professor of surgery and director of the National Accreditation Program for Rectal Cancer at UCI. Michael Stamos, MD Michael Stamos is a professor of surgery, dean of the School of Medicine and founder of the Division of Colon and Rectal Surgery. Valery Vilchez Parra, MD Valery Vilchez Parra is an assistant professor of surgery in the Division of Colon and Rectal Surgery at UCI. Matthew Whealon, MD Matthew Whealon is an assistant professor of surgery and the associate program director for the General Surgery Residency program and associate program director of the Colon and Rectal Surgery Fellowship program at UCI School of Medicine.