Dr. Michael T. Johnston is an internist in Dallas, Texas and is affiliated with multiple hospitals in the area, including Baylor Scott and White Institute for Rehabilitation-Dallas and Baylor University Medical Center. He received his medical degree from The University of Texas Health Science Center at San Antonio and has been in practice for more than 20 years. Dr. Michael T. Johnston has expertise in treating coronary artery disease, hypertension & high blood pressure, diabetes, among other conditions - see all areas of expertise. Dr. Michael T. Johnston accepts Medicare, Aetna, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Michael T. Johnston is highly recommended by patients.