Dr. Gerald J. Johnson is an internist in McKinney, Texas and is affiliated with multiple hospitals in the area, including Baylor Scott and White Medical Center-Centennial and Baylor Scott and White The Heart Hospital Plano. He received his medical degree from McGovern Medical School at UTHealth and has been in practice for more than 20 years. Dr. Gerald J. Johnson has expertise in treating stroke, among other conditions - see all areas of expertise. Dr. Gerald J. Johnson accepts Medicare, Aetna, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.