Dr. Winkler graduated from University of Nebraska College of Medicine in 1977 and has been in practice for 39 years. He completed a residency at Baylor College of Medicine. He currently practices at Martin J Winkler MD and is affiliated with CHI Health Bergan Mercy, CHI Health Immanuel Medical Center and CHI Health Mercy Council Bluffs. Dr. Winkler accepts multiple insurance plans including Medicare, Humana and Cigna. Dr. Winkler is board certified in Surgery.