David Hirschl, MD

Dr. Noor Ahmad is board certified in diagnostic radiology and interventional radiology. He is an associate professor of radiology at Columbia University Irving Medical Center and an attending radiologist at NewYork-Presbyterian Hospital. Dr. Ahmad serves as vice chair of clinical operations for the Department of Radiology. Dr. Ahmad has expertise in performing minimally invasive procedures to manage and treat a wide array of clinical conditions ranging from cancer care to men’s and women’s health. His particular focus and interests are in the treatment of blood clots within legs (deep venous thrombosis) and lungs (pulmonary embolism). Related to this, Dr. Ahmad is an expert in complex removal of inferior vena cava (IVC) filters. Rounding out his practice, Dr. Ahmad performs a wide range of procedures for cancer and non-cancer pain which include image-guided joint injections, blocks, and ablations. Finally, Dr. Ahmad has expertise in performing knee embolizations for both recurrent bleeding and osteoarthritis. Prior to medical school, Dr. Ahmad was a bioengineer and performed research within a tissue engineering laboratory. After medical school and radiology training at New York Medical College, where he served as chief resident, Dr. Ahmad received his training in vascular and interventional radiology at Weill Cornell Medical College and Memorial Sloan Kettering Cancer Center. Dr. Ahmad is an active teacher of fellows, residents, and medical students and has authored numerous book chapters and research articles. In addition, he has presented nationwide and is a member in several radiology societies including the Society of Interventional Radiology and Radiologic Society of North America.

Dr. Benjamin Navot is a board-certified diagnostic radiologist with subspecialty training in abdominal/body imaging as well as cardiovascular imaging. He is an assistant professor of radiology at Columbia University Irving Medical Center (CUIMC) and an attending radiologist at NewYork-Presbyterian Hospital. He serves as associate chair of quality and patient safety for the Department of Radiology. Dr. Navot graduated from MIT with a Bachelor's of Science in both chemistry and biology before matriculating at the NYU School of Medicine where he obtained his Doctorate of Medicine. He continued his training with a medical internship at NYU prior to his diagnostic radiology residency at New York Medical College, Westchester Medical Center. He completed a fellowship in body MRI imaging at Columbia University and has remained on the Columbia Radiology faculty since. Dr. Navot's research interests include cirrhosis and liver cancer as well as prostate MRI.

Dr. Jonathan Susman is a board certified radiologist with specialization in vascular and interventional radiology. He is an associate professor of radiology at Columbia University Irving Medical Center and an assistant attending radiologist at NewYork-Presbyterian Hospital. After earning his MD degree at Albert Einstein College of Medicine, Dr. Susman completed an internship in internal medicine at Beth Israel Medical Center/Albert Einstein College of Medicine and a diagnostic radiology residency at Long Island Jewish Medical Center followed by an interventional radiology fellowship at New York University Medical Center/New York University School of Medicine. He is a member of the Radiological Society of North America, American College of Radiology, American Roentgen Ray Society, Society of Interventional Radiology and the American Heart Association.