Dr. Mueller was born and raised in Germany where he received his MD at Ruprecht-Karls-Universität in Heidelberg, Germany. He did his Residency/Fellowship in Internal Medicine/Cardiology at the Department of Medicine/Cardiology, Westfälische Wilhelms-Universität, Münster, Germany and completed a Postdoctoral Research Fellowship at Gazes Cardiac Research Institute, Medical University of South Carolina (MUSC), in Charleston, South Carolina.
After moving to the US with his family, Dr. Mueller completed a second residency in Internal Medicine at Fletcher Allen Health Care (FAHC) and the University of Vermont. In June 2011, he completed a Fellowship in Cardiovascular Disease and Clinical Cardiac Electrophysiology at FAHC. He is certified by the American Board of Internal Medicine with subspecialty board certification in Cardiovascular Disease and Clinical Cardiac Electrophysiology.