Surgeons and Bios

Robert K. Cleary, MD

Dr. Cleary, born in Royal Oak, Michigan, graduated from the University of Notre Dame with a Bachelor of Science in 1979. He received his medical degree from the Wayne State University School of Medicine in 1984, and completed his residency in General Surgery at Trinity Health Ann Arbor Hospital in 1989. A fellowship in Colon and Rectal Surgery followed at Parkland/Presbyterian Hospitals and was completed in 1992. Dr Cleary is the Program Director for the Colon and Rectal Surgery residency, Director of Research, Vice President of the Association for Program Directors in Colon and Rectal Surgery, Chair of the Michigan Surgical Quality Collaborative Enhanced Recovery Pathway Committee, member of the Alliance/American College of Surgeons Operative Standards for Cancer Surgery Committee, member of the Alliance/American College of Surgeons Cancer Care Delivery Research Committee ,and member of the ACGME Colon and Rectal Surgery Residency Review Committee. Dr. Cleary enjoys coaching and playing baseball, photography and spending time with his wife and six children.

Melissa I. Chang, MD

Melissa I. Chang, MD, is a double board-certified surgeon in general and colon and rectal surgery. She received her undergraduate and masters degrees from Johns Hopkins University in Baltimore, MD, and completed her medical degree at Tufts University in Boston, MA. Dr. Chang completed her General Surgery residency at the Icahn School of Medicine at Mount Sinai Hospital in New York, NY and her Colon and Rectal Surgery fellowship at Mayo Clinic in Rochester, MN. Dr. Chang has clinical interests in minimally invasive laparoscopic and robotic approaches for colon and rectal cancer, benign diseases such as inflammatory bowel disease, diverticulitis, and pelvic floor disorders. Dr. Chang also specializes in the workup and treatment of fecal incontinence, diarrhea, and anorectal disease including abscesses, fistulas, and hemorrhoids.

John C. Eggenberger, MD

Dr. Eggenberger was born in Detroit, Michigan and completed both his undergraduate (1981) and medical school (1985) studies at the University of Michigan. He then completed his General Surgery Residency at the University of Michigan in 1991 and his Colon and Rectal Surgery Fellowship at the Cleveland Clinic Foundation in 1992. Dr. Eggenberger is board certified in both General and Colon and Rectal Surgery. His clinical interests include colon, rectal and anal cancers, lower endoscopy, inflammatory bowel disease, complex anorectal disease and re-operative colon and rectal surgery. He currently serves as the Walter M. Whitehouse Endowed Chair of Surgery for Trinity Health Ann Arbor and Livingston Hospital. He enjoys University of Michigan sports, golf, biking, walking, reading and spending time with family.

Amanda M. McClure, MD

Dr. McClure is a board-certified general and colorectal surgeon. Dr. McClure specializes in robotic and laparoscopic surgery, as well as minimally invasive transanal procedures. She has clinical interests in the prevention, diagnosis and treatment of colorectal cancer. Dr. McClure specializes in treating diverticulitis, inflammatory bowel disease and anorectal disorders including hemorrhoids, fissures, abscesses and fistulas. She performs specialized testing and treatment for pelvic floor disorders, including constipation and fecal incontinence.

Beth-Ann Shanker, MD

Dr. Beth-Ann Shanker graduated from Barnard College, Columbia University with honors in Biopsychology.  She received her MD, MSc from Rochester University School of Medicine and Dentistry.  She completed her general surgery residency at Rutgers University.  She went on to a three-year fellowship in minimally invasive surgery and colon and rectal surgery at the Colon and Rectal Clinic of Orlando.  Dr. Shanker has been part of the IHA Colon and Rectal surgical practice since 2016, and is currently the Associate Program Director of the Colon and Rectal Fellowship program.  She is both a member of the national AOA medical honors society and a recipient of the national Arnold P Gold humanism and teaching award.

 Dr. Shanker is double boarded in general and colorectal surgery.  Her areas of interest include robotic and laparoscopic techniques.  She treats all areas of colon and rectal disorders including malignancy, inflammatory bowel conditions, diseases of the anus and rectum, and pelvic floor disorders such as prolapse, fecal incontinence and constipation.