Sarah Koller

Assistant Professor of Clinical Surgery

Well-being Director, Surgery

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Sarah Koller, MD, MS, earned her BS in biology from Villanova University and her medical degree from Drexel University College of Medicine. She completed a general surgery residency at Temple University Hospital, during which time she also earned a Master of Science in Clinical Research. She investigated ways to reduce post-operative complications after colorectal surgery, published in several peer-review journals, and presented at national conferences. Dr. Koller completed fellowship training in Colon and Rectal Surgery at the University of Southern California.

Dr. Koller uses innovative surgical techniques that employ the least invasive methods available, such as laparoscopic/robotic surgery and advanced endoscopy, to treat all diseases of the colon and rectum. She also specializes in treating anorectal conditions and pelvic floor disorders, including fecal incontinence and rectal prolapse.

Dr. Koller approaches each individual patient with respect and compassion, ensuring that they understand their disease and their treatment options, and partners with them to create personalized treatment plans.


  • Rectal Cancer Survival for Residual Carcinoma In Situ VsPathologic Complete Response After Neoadjuvant Therapy. Dis Colon Rectum. 2024 Mar 18. . View in PubMed
  • Diagnosis and management of traumatic rectal injury: A Western Trauma Association critical decisions algorithm J Trauma Acute Care Surg. 2023 11 01; 95(5):731-736. . View in PubMed
  • Prevalence of and Risk Factors for Incidental Colonic Diverticulosis J Surg Res. 2022 Dec; 280:348-354. . View in PubMed
  • A Novel Technique for the Repair of End Ileostomy Retraction Dis Colon Rectum. 2022 02 01; 65(2):e70. . View in PubMed
  • LigaSure™ haemorrhoidectomy and the risk of postoperative bleeding Colorectal Dis. 2021 10; 23(10):2699-2705. . View in PubMed
  • COVID-19 Impact on Colorectal Daily Practice-How Long Will It Take to Catch Up? J Gastrointest Surg. 2021 01; 25(1):260-268.. View in PubMed
  • Comparative Effectiveness and Risks of Bowel Preparation Before Elective Colorectal Surgery Ann Surg. 2018 04; 267(4):734-742. . View in PubMed
  • Adherence to chronic opioid therapy prescribing guidelines in a primary care clinic J Opioid Manag. 2016 Sep/Oct; 12(5):333-345. . View in PubMed