Surgeons
Walter A. Koltun, M.D.
Professor of Surgery
Division Chief - Colon and Rectal Surgery
Kevin J. McKenna, M.D.
Assistant Professor of Surgery
Division of Colon and Rectal Surgery
Lisa S. Poritz, M.D.
Associate Professor of Surgery
Division of Colon and Rectal Surgery
David B. Stewart, M.D.
Assistant Professor of Surgery
Division of Colon and Rectal Surgery
Certified Registered Nurse Practitioner
Marjorie A. Lebo, CRNP
Enterostomal Therapy Nurses
Christine Ardell, BSN, RN, CWOCN
Suzi Follett, BSN, RN, CWOCN
Mary Howe, BSN, RN, CWOCN
