Brian Christopher Johnston, MD

Dr. Brian Johnston is a board-certified physician, specializing in internal medicine. His professional interests include preventive health, hypertension, diabetes mellitus, lipid management, obesity and diet and exercise counseling.

Dr. Johnston is passionate about helping his adult patients achieve optimal health outcomes while confidently navigating the complexities of today’s medical system. He practices evidence-based, guideline-driven medical care that aligns with each patient’s values and goals.


Dr. Johnston is a proud member of the American College of Physicians.

Outside of work, Dr. Johnston enjoys spending time with his wife and two retired racing greyhounds. He also likes outdoor activities, such as hiking, cycling, fishing and camping, reading non-fiction and fiction books and exploring new restaurants in Dallas.