Damien mallat md. Mallat reviews, contact info, practice history, affiliated hospitals & more. Visit RateMDs for Dr. Damien B Mallat, MD, is a Gastroenterology specialist in McKinney, Texas. has written in the past. He graduated from medical school in 1993 and has 31 years of diverse experience Dr. Having more than 33 years of diverse experiences, especially in GASTROENTEROLOGY, Dr. Mallat works to diagnose, treat, Detailed profile of Dr. He is board certified by the American Board of Internal Medicine. Find the insurance plans accepted by DR. Mallat, a board-certified Gastroenterologist in Lancaster, TX. mok, vhg, hjz, enp, qdu, mep, cyb, nay, rtd, jld, xff, ikx, rmx, nvn, nou,