Elizabeth Leimbach, 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. David Hirschl is a board-certified radiologist with specialization in vascular and interventional radiology. He is an assistant professor of radiology at Columbia University Irving Medical Center and an assistant attending radiologist at NewYork-Presbyterian Hospital. Dr. Hirschl practiced at Montefiore Medical Center for eight years prior to being recruited to Columbia. Dr. Hirschl’s clinical expertise encompasses a variety of minimally invasive procedures including the diagnosis and treatment of various malignancies, uterine fibroid embolization (UFE), venous access, and pulmonary embolism intervention. Dr. Hirschl completed his medical school training at Albert Einstein College of Medicine and his internship at Yale New Haven Hospital. His post-graduate training includes a diagnostic radiology residency and vascular-interventional radiology fellowship at Montefiore Medical Center, Bronx, New York. He is a member of the Society of Interventional Radiology and The American College of Radiology.

Stacy W. Baird, MD is an Assistant Professor of Medicine at Columbia University Medical Center. She is a cardiologist with expertise in non-invasive imaging, focusing on stress testing, transesophageal echocardiography and 2D-echocardiography in the diagnosis and evaluation of cardiac conditions. Dr. Baird received her undergraduate degree from Princeton University and her medical degree from Johns Hopkins University School of Medicine. She completed her internship and medical residency at The Johns Hopkins Hospital, followed by fellowship training in Cardiovascular Diseases at New York-Presbyterian Hospital/Columbia University Medical Center. Following fellowship, Dr. Baird then completed an Advanced Fellowship in Echocardiography at NewYork-Presbyterian/Columbia, with a focus on the use of 3D-echocardiography and transesophageal echocardiography in the evaluation of cardiovascular diseases, particularly valvular heart disease. She is board certified in cardiology, echocardiography, and nuclear cardiology.