Alex E Fijman, MD

With an office conveniently located in Cortlandt Manor, NY, our board-certified urologists provide comprehensive and compassionate services for all our patients – men, women and children. We care for urinary tract problems, like a leaky bladder. Optum urologists also care for the male reproductive system. Our patients come first and we treat every individual as if they were a member of our own family. Optum accepts most major health plans.

Giora Weisz, MD, is an Associate Professor of Medicine at Columbia University Irving Medical Center and serves as the Director of the Cardiac Catheterization Laboratories at NewYork-Presbyterian Hudson Valley Hospital. He graduated from the Hebrew University-Hadassah Medical School in Jerusalem, Israel, and completed his residency in internal medicine and cardiology fellowship at the Carmel Medical Center in Haifa, Israel. Dr. Weisz finished his interventional cardiology training at Lenox Hill Hospital in New York.As an interventional cardiologist, Dr. Weisz focuses on current and innovative technologies. His expertise includes novel robotic-enhanced coronary interventions, with a special emphasis on navigation and positioning technologies. He also has a keen interest in the management of incomplete revascularization, novel intravascular imaging, and strategies for preventing contrast-induced nephropathy.

Mariya Kobi, MD, is a board-certified radiologist specializing in body imaging. She is an assistant professor of radiology at Columbia University Irving Medical Center and an assistant attending radiologist at NewYork-Presbyterian Hospital. Dr. Kobi earned her MD from Albert Einstein College of Medicine. After an internship year in internal medicine at Beth Israel Medical Center in New York, she completed her residency training at Montefiore Medical Center, where she served as chief resident. She then completed an Abdominal Imaging Fellowship, also at Montefiore Medical Center. Her clinical expertise is in multimodality abdominal imaging with a focus on gastrointestinal and genitourinary conditions. She interprets a wide range of imaging examinations including CT scan, MRI, ultrasound, and radiography. Her clinical interests are pre- and post-operative imaging of liver, kidney, and pancreas transplants and virtual colonoscopy. She has had numerous original research articles published, along with contributions to reviews and book chapters, and has given many oral presentations nationally, including at the Society of Abdominal Radiology annual meeting. She is a member of American College of Radiology (ACR), the Society of Abdominal Radiology (SAR), American Roentgen Ray Society (ARRS), and the Radiological Society of North America (RSNA). She serves on ACR quality improvement committees including the Expert Panel on GI Imaging and CT Colonography. See a full list of Dr. Kobi's publications.