William R Johnson, MD

When you choose Columbia Radiology, you're choosing to be affiliated with NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, one of the top rated hospitals in the country. You'll have access to the most current technology and image-guided therapies along with radiologists and technicians who perform and interpret more than 500,000 procedures and scans each year. Our commitment to expert, personal care means that your radiologist will partner with your physician and become an integral part of your healthcare team.

The Al-Sabah Arrhythmia Institute at Mount Sinai Morningside on Manhattan’s Upper West Side, is a state-of-the-art electrophysiology facility that offers the most advanced, sophisticated and compassionate arrhythmia care. We treat a wide variety of heart rhythm disorders including atrial fibrillation, bradycardia (slow heart rhythms), tachycardia (fast heart rhythms), long QT syndrome, Brugada syndrome, and cardiomyopathies.

Dr. Daniel Kadosh is a radiologist with subspecialty training in pediatric radiology. He is an assistant professor of radiology at Columbia University Irving Medical Center and an assistant attending radiologist at NewYork-Presbyterian. He completed his diagnostic radiology residency at Westchester Medical Center/New York Medical College and his pediatric radiology fellowship at Columbia University Irving Medical Center/NewYork-Presbyterian Morgan Stanley Children's Hospital.