Russell J Crew, MD

Dr. Hiroo Takayama is Chief of Adult Cardiac Surgery at NewYork-Presbyterian/Columbia University Irving Medical Center. He has more than 20 years of experience in treating patients with heart and vascular problems. As the Director of the Aortic Surgery Program and co-Director of the Aortic Center, the Hypertrophic Cardiomyopathy Center, and the Marfan Clinic at NYP/Columbia, Dr. Takayama has contributed to the care of over 4,000 patients by performing a variety of aortic and cardiac surgical procedures, approximately 300-350 operations every year. Dr. Takayama is internationally recognized for his work on complex aortic surgery (minimally invasive aortic surgery, valve-sparing aortic root replacement, aortic valve repair, aortic arch and thoracoabdominal aneurysm repair), hybrid aortic surgery (thoracic endovascular aneurysm repair), myectomy for obstructive hypertrophic cardiomyopathy, and heart failure surgery. He is a leader in outcome research in aortic diseases and heart failure. He has published more than 300-350 manuscripts in prestigious, peer-reviewed journals and has authored numerous book chapters about heart disease. Dr. Takayama attended University of Tokyo for Medical School, did his internship at University of Tokyo, general surgery residency in University of Washington Medical Center, and cardio-thoracic surgery fellowship in New-York Presbyterian/Columbia University Medical Center.

Daniel S. O'Connor, MD, PhD is an Associate Professor of Clinical Medicine at Columbia College of Physicians and Surgeons, Co-director of the Center for CardioOncology, Cardiologist for the Aortic Program and Cardiac Intensivist at Columbia University Medical Center in New York. His areas of expertise include consultative cardiology, critical care cardiology, and non-invasive imaging. Dr. O'Connor is board certified in internal medicine and cardiology. Dr. O'Connor received his PhD studying vascular and cancer cell biology within the Department of Pharmacology at Yale University. He then received his MD degree at The State University of New York at Brooklyn Medical Center (SUNY Downstate). Dr. O'Connor was an Intern, Resident and Chief Resident at Mount Sinai Medical Center in New York. He then completed his training as a Fellow and Chief Fellow in cardiovascular medicine at Columbia University Medical Center.

ColumbiaDoctors Medical Group is one of the largest multi-specialty practices in New York State, comprised of an experienced group of physicians specializing in Cardiology, Vascular Disease, Internal Medicine and Gastroenterology. The physicians at ColumbiaDoctors Medical Group are specialists in many areas of medicine, including: Congenital Heart Failure, Cardiac Transplantation, Cardiovascular Disease, Peripheral Vascular Disease, Pulmonary Hypertension, Arrhythmias, Cardiac Catheterization, Internal Medicine, Gastroenterology, Pulmonary Medicine and Nutrition & Wellness. ColumbiaDoctors Medical Group physicians are faculty members at New York Presbyterian/Columbia University Medical Center and actively participate in advanced research, in an effort to offer patients with complex illnesses access to therapies not readily available elsewhere. Some of the current cardiology protocols include: non-surgical treatments for valvular disease, new treatments for atrial fibrillation, methods to avoid use of blood thinners, as well as modalities to treat blood pressure with less medication. The physicians at ColumbiaDoctors Medical Group practice in several Westchester County locations include Hawthorne, White Plains, Eastchester, Hartsdale, Mount Vernon, Scarsdale, and Somers. Orange County locations include Goshen and Port Jervis New York.