Dr. Johnson completed his medical school and residency at Baylor College of Medicine in 1979, and a Fellowship in Infectious Disease at the University of Texas Health Science Center at Houston (UTHealth) in 1982.  He was appointed Division Director in 1989 and is actively involved in clinical patient care, teaching, and research.  Dr. Johnson served as the Associate Program Director of the University Clinical Research Center at Memorial Hermann Hospital for 15 years, with interest in the research areas of gastrointestinal and fungal infections, and HIV/AIDS.  His research awards include, but are not limited to, grants from NASA  and leading pharmaceutical companies.  Dr. Johnson was listed in Texas Super Doctors and the Best Doctors in America a total of four times and was voted as one of Houston’s Top Doctors in 2002.   Dr. Johnson is a Diplomate of the American Board of Internal Medicine as well as a Fellow in the American College of Physicians.


Medical Degree
Baylor College of Medicine
Baylor College of Medicine
UTHealth McGovern Medical School