Dr. Marsha Harris grew up in Jamaica, Queens, New York. She attended the College of Arts and Sciences at New York University where she majored in Chemistry and minored in Mathematics. While attending New York University, she was an All-American women's basketball player and won a national championship in her junior year. She later earned her medical degree in 2002 from New York University's School of Medicine and in 2007 completed her general surgery residency training there as well. At the Colon and Rectal Clinic of Orlando, University of Florida, she completed her fellowship training in colon and rectal surgery in 2008.
She has been practicing colon and rectal surgery in Manhattan, while holding an academic appointment as a Clinical Assistant Professor of Surgery in the Department of Colon and Rectal Surgery at New York University. She has practiced earnestly in the field with special interests in minimally invasive surgery for colon and rectal cancer, diverticulitis, and colon motility disorders. She has worked extensively with patients with anorectal diseases, rectal prolapse, pilonidal disease and pelvic floor dysfunction.
Dr Harris is a board-certified general surgeon and colon and rectal surgeon. She has been recertified by the American Board of Surgeons as well as the American Board of Colon and Rectal Surgeons. She has earned recognition as Castle Connolly Regional Top Doctor and received Vitals Compassionate Doctor award, Vitals Patient Choice award, and Healthgrades Honor Roll. Dr. Harris is a member and fellow of the American Society of Colon and Rectal Surgeons and the American College of Surgeons. She has publications in Diseases of Colon and Rectum. In Spring 2021 she started her own medical practice, Park Avenue Colon and Rectal Surgery in Manhattan, New York.