Dr. Zachary T. Hollis

Brett Atwater is a Cardiac Electrophysiologist and a Cardiologist in Ashburn, Virginia. Dr. Atwater is rated as a Distinguished provider by MediFind in the treatment of Heart Block. His top areas of expertise are Heart Block, Atrial Fibrillation, Heart Failure, Cardiac Ablation, and Pacemaker Implantation. Dr. Atwater is currently accepting new patients.

Cyrus Hadadi is a Cardiologist and a Cardiac Electrophysiologist in Washington, Washington, D.c.. Dr. Hadadi is rated as a Distinguished provider by MediFind in the treatment of Heart Block. His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Sick Sinus Syndrome, Pacemaker Implantation, and Cardiac Ablation. Dr. Hadadi is currently accepting new patients.

Degrees: BS: Massachusetts Institute of Technology 1981 Electrical Engineering MS: Massachusetts Institute of Technology 1983 Electrical Engineering PhD: Massachusetts Institute of Technology 1987 Electrical Engineering MD: Harvard 1987 Medicine Professional Appointments: 1987-1988 Intern in Medicine, Brigham and Women's Hospital 1988-1990 Resident in Medicine, Brigham and Women's Hospital 1988-1990 Research Scientist, Harvard M.I.T. Division of H.S.T. 1990-1993 Fellow in Cardiology, Johns Hopkins University 1993-1998 Assistant Professor of Medicine, Johns Hopkins University 1996- Co-Director of Cardiac Electrophysiology, Johns Hopkins Hospital 1998-2005 Associate Professor of Medicine, Johns Hopkins University 2002-2005 Associate Professor of Biomedical Engineering, Johns Hopkins University 2005- Professor of Medicine, Johns Hopkins University 2005- Professor of Biomedical Engineering, Johns Hopkins University. Dr. Berger is rated as a Distinguished provider by MediFind in the treatment of Heart Block. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation.