Navigate Up
Sign In

Rush University Surgeons - Colorectal

Colorectal surgeons at Rush are dedicated to providing timely, comprehensive and compassionate care for adults and children with all types of disorders of the lower intestinal tract, including complex colorectal problems.



​Joanne Favuzza, DO, received her Bachelor’s Degree from the Boston University, Boston, MA and her medical degree from the University of New England College of Osteopathic Medicine. She performed her general surgery residency at the Berkshire Medical Center in western Massachusetts and her colorectal residency at Case Western Reserve University in Cleveland. She has been on staff at Rush University Medical Center since 2012.

Areas of clinic interest: Treatment of fecal incontinence and constipation with new approaches including sacral nerve stimulation – SNS, laparoscopic surgery for all colorectal disorders, colon and rectal cancer, inflammatory bowel disease including Crohn’s disease and ulcerative colitis, and diverticular disease​.

Bruce Orkin, MD, is a practicing colon and rectal surgeon and has been on the full‑time faculty at Rush University in Chicago, IL since early 2013. He is the Vice Chair of the Department of General Surgery for Academic Affair. In this capacity, he oversees all educational, research and academic activities within the department. He also serves as the chief of the Section of Colon and Rectal Surgery.

Dr. Orkin received his Bachelor's Degree from the University of Wisconsin in Madison WI and his Medical Degree from the University of Minnesota. He performed his internship at UCLA and his general surgery residency at the Mayo Clinic in Rochester, MN. He completed Fellowships in gastrointestinal research at the Mayo Clinic and then in colon and rectal surgery at the Cleveland Clinic in Ohio.

Dr. Orkin is active in clinical practice, education and research. He is an acknowledged authority on colorectal surgery and has published numerous research papers, review articles and chapters in this field. He has been visiting professor at many institutions internationally from the Netherlands to Brazil to China. Dr. Orkin has been actively involved in the Accreditation Council for Graduate Medical Education - ACGME since 2007. He currently serves as the Chair of the Residency Review Committee for Colon and Rectal Surgery which oversees all accredited colorectal training programs in the United States.

Marc Singer, MD, joined  the faculty of the Section of Colon and Rectal Surgery at Rush University Medical Center in July 2014. Dr. Singer brings unique expertise to Rush with regards to the treatment of complicated anorectal disorders, pelvic floor disorders, and minimally invasive colon and rectal surgery. He can offer patients novel surgical treatments such as STARR procedure for rectocele and obstructed defecation, LIFT procedure for anal fistula, and endoscopic submucosal dissection (ESD) for colon lesions. He maintains strong interests in clinical research and will be offering patients enrollment in a number of clinical trials. In addition, Dr. Singer will serve as the director for Continuing Medical Education for the Section, as well as the site director for the Stroger Colorectal Surgery training program.



Our services include the following:

  • Laparoscopic and robotic surgery for most colorectal surgical problems
  • Transanal endoscopic microsurgery (TEM) for large rectal polyps and early cancers
  • Treatment of locally advanced and metastatic colon, rectal and anal cancers
  • Management of inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, and complicated anorectal disease
  • Treatment of acute and complicated diverticular disease,
  • Definitive treatment for pilonidal disease
  • Ileal pouch-anal anastomosis for ulcerative colitis and familial polyposis
  • Treatment of the broad spectrum of colon and anorectal disorders
Our program is also home to the following special programs:

To find out more about the Colon and Rectal Surgery team please visit their website: CRS Website

Accreditation and Recognition

Rush University Surgeons - Colorectoral
1725 W. Harrison St.
Professional Building II
Suite 1138
Chicago, IL 60612
Phone: (312) 942-7088
Fax: (312) 942-7018
Driving Directions

Rush University Surgeons--Colorectal Oak Park
500 S. Maple Ave
Suite 2700
Oak Park, IL 60304
Phone: (312) 942-7088
Driving Directions

Practice Resources

Forgot MyChart Username? Forgot Password?