Sidney Brejt, MD

Dr. Stephen Reis is a board-certified radiologist with specialization in vascular and interventional radiology. He is the chief of the Division of Interventional Radiology and an associate professor of radiology at Columbia University Irving Medical Center. Dr. Reis’ clinical practice focuses on the minimally invasive treatment of tumors of the kidney, liver, and lung as well as metastatic tumors of the liver and lung, using percutaneous (through the skin) ablation and embolization. He is an expert in all interventional aspects of cancer diagnosis and treatment from percutaneous biopsy to vascular access placement. In addition to cancer therapy, Dr. Reis brings expertise in the treatment of pelvic pain related to fibroids and pelvic congestion syndrome. He also works in conjunction with urologists in the treatment of male infertility and urinary obstruction. The management of lower extremity venous insufficiency and maintenance of dialysis access rounds out his practice. Dr Reis is known in the region as an expert in selective venous sampling. He works closely with the physicians at Columbia's Adrenal Center in the diagnosis of primary hyperaldosteronism. Dr. Reis completed his medical school training at New York Medical College and his internship at St. Vincent's Medical Center in Manhattan. His post-graduate training includes a diagnostic radiology residency at Westchester Medical Center and a vascular-interventional radiology fellowship at the University of Texas—Southwestern Medical Center and Parkland Memorial Hospital in Dallas, Texas. He remained on faculty at UT—Southwestern until he was recruited by Columbia University Irving Medical Center for his expertise in cancer care. He is a member of the Society of Interventional Radiology and the American College of Radiology (ACR) where he serves on several national quality-improvement committees including the Expert Panel on Vascular Imaging, which is responsible for writing the ACR appropriateness criteria for medical imaging.

Dr. David Sperling is board certified in diagnostic radiology and subspecialty certified in vascular and interventional radiology. Dr. Sperling is an associate professor of radiology at Columbia University Irving Medical Center and an assistant attending radiologist at NewYork-Presbyterian Hospit...

Dr. Joshua Willey is the Daniel Sciarra Associate Professor of Clinical Neurology at the Columbia University Vagelos College of Physicians and Surgeons in New York City and Attending Neurologist on the Stroke Service at NewYork-Presbyterian Hospital. Dr. Willey received his undergraduate degree from Cornell University in 1999, his medical degree from Columbia University in 2003. After Neurology Residency at Columbia-Presbyterian Hospital, he completed a two-year neuro-epidemiology and stroke fellowship at Columbia-Presbyterian Medical center, when he also earned an MS in epidemiology. He joined the faculty of Columbia College of Physicians and Surgeons in 2009. Dr. Willey has an outpatient clinical practice in neurology with a focus on cerebrovascular diseases and stroke, and attends on the inpatient stroke service. He is actively involved in teaching of non-medical students in the health sciences campus, medical students in the pre-clinical and clinical years, and neurology residents and fellows. Dr. Willey is the vascular neurology fellowship program director, and co-director of the near-epidemiology training program.