Dr. Estes has been practicing pulmonary and critical care in Knoxville, TN since 1991 and has been with StatCare practicing pulmonary and critical care since 2000. He graduated from the University of Florida in 1980, and medical school from the University of South Florida in 1984. He completed his internship and residency at the University of Alabama Birmingham hospitals and pulmonary critical care fellowship at the University of Tennessee, Memphis, completing in 1989. Dr. Estes has a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. He received his board certification from the American Board of Internal Medicine in 1987, Pulmonary and Critical Care Medicine in 1989 and remains board certified in both fields. Dr. Estes is a member of the American College of Chest Physicians, Tennessee Thoracic Society, American Thoracic Society, and Society of Critical Care Medicine.