Maria Ximena Traa Kiely, M.D., is a fellowship-trained colon and rectal surgeon at Johns Hopkins Medicine. Dr. Kiely was trained in general and colorectal surgery with expertise in minimally invasive management of colon, rectal, and anal cancers, inflammatory bowel disease, diverticulitis, pelvic floor and functional disorders of the colon/rectum, hemorrhoids, fistulas, fissures and general anorectal health. She has extensive experience with minimally invasive laparoscopic, robotic and trans-anal techniques, particularly for rectal cancer care and complex pelvic disease.
Prior to joining Johns Hopkins, Dr. Kiely was named “Top Doctor” for Colon and Rectal Surgery by her Oregon physician peers five years in a row. She was managing partner of a large multi-specialty surgical group and had many years of experience training colon and rectal surgery fellows, as well as general surgery residents. During her general surgery residency at Tufts Medical Center, she served as administrative chief resident. Dr. Keily has completed her certification in the ASCRS Fundamentals of Rectal Cancer Surgery, in addition to many years of experience in her prior position working in a Nationally Accredited Program in Rectal Cancer. She is committed to advancing high-quality, patient-centered care. She is fluent in English, Spanish and Dutch, and brings a global perspective to her work, having also trained and worked in the United Kingdom.
Dr. Kiely is deeply passionate about helping patients navigate the challenges of colon, anal and rectal health. She is dedicated to creating a supportive and empathetic environment where patients feel seen, heard and empowered in their care. Whether guiding someone through a colorectal cancer diagnosis or helping to manage a chronic condition, she values the trust her patients place in her during vulnerable moments. Dr. Kiely sees patients at her Arlington clinic and performs surgeries primarily at Sibley Memorial Hospital.