Francisco Guzman, MD

Dr. Dizon has been at the Columbia University Medical Center since 1991, where he did his cardiology and electrophysiology training. He has remained on full-time staff and maintains a busy clinical practice, with offices in White Plains and in the medical center in upper Manhattan. Dr. Dizon's area of clinical expertise include cardiac arrhythmia management, including ablation of arrhythmias and device therapy. He has an active teaching interest, having mentored many students and fellows. He has participated in numerous multicenter and investigator initiated studies, and has authored or co-authored over 100 peer reviewed articles and abstracts.

Dr. Ani Nalbandian completed medical school at Columbia University Vagelos College of Physicians & Surgeons, followed by Internal Medicine Residency and General Cardiology Fellowship at Columbia University Irving Medical Center-New York Presbyterian Hospital. During cardiology fellowship, she completed a Master’s in Patient Oriented Research at the Mailman School of Public Health, and conducted a pilot clinical trial investigating body composition analysis and sodium-glucose cotransporter-2 inhibitors in transthyretin amyloid cardiomyopathy which was supported by a T32 NIH-funded Training Grant and the Glorney-Raisbeck Fellowship Award in Cardiovascular Diseases granted by the New York Academy of Medicine. Following cardiology fellowship, Dr. Nalbandian completed an additional 1-year ACGME-accredited fellowship in Critical Care Medicine at Columbia University Irving Medical Center-New York Presbyterian Hospital, becoming the inaugural dual-boarded critical care cardiologist trained at the institution. Dr. Nalbandian joined as faculty in the Division of Cardiology in August 2024, where she attends primarily as a cardiac intensivist, and also has a general outpatient clinical practice. She was recently awarded the 1st Annual Transthyretin Amyloidosis (ATTR) Young Investigator Research Award by the American Academy of CME, Cornerstone Medical Education, granting her the ability to continue her clinical research within this field of interest. In addition, Dr. Nalbandian aspires to help develop a longitudinal multi-disciplinary care clinic for patients post critical illness, serving both clinical and research needs of this growing patient population.

Dr. Haythe graduated from Harvard University in 1995. She completed her medical school and residency training at Columbia University College of Physicians and Surgeons in 2003. After finishing a congestive-heart failure-cardiac transplant fellowship at Columbia in 2005 she went on to complete her fellowship training in cardiovascular diseases there in 2009. She is currently the Irene and Sidney B. Silverman Associate Professor of Cardiology, Center for Advanced Cardiac Care at Columbia, Director of the Adult Pulmonary Hypertension Program, Director of the Cardio-Obstetric Program and Co-Director of The Columbia Women’s Heart Center. Dr. Haythe specializes in pulmonary hypertension, cardio-obstetrics, heart failure, HFPEF, and cardiovascular disease in women.