Dr. Arun Narayanan is a Clinical Electrophysiologist and an Assistant Professor of Medicine in the Division of Cardiology at UTMB. He completed his medical training at the American University of Antigua, followed by his residency in Internal Medicine at the University of Texas Health Science Center in Houston. His interest in cardiology led him to pursue a fellowship in Cardiovascular Disease at New York Presbyterian Brooklyn Methodist Hospital where he was Chief Fellow. He then completed his advanced fellowship training in Clinical Cardiac Electrophysiology at Tufts Medical Center in Boston.

Dr. Narayanan specializes in the diagnosis and management of cardiac arrhythmias, including catheter ablation for atrial fibrillation, supraventricular tachycardia, and ventricular tachycardia, as well as cardiac device implantation for treatment of slow heart rhythms and prevention of sudden cardiac death. He has published several manuscripts and presented at national conferences including Heart Rhythm Society, American College of Cardiology, and American Heart Association. His research interests include hypertrophic cardiomyopathy, sudden cardiac death, and subcutaneous implantable cardioverter-defibrillators.

Dr. Narayanan is a proud, native Texan. He loves traveling, Houston sports, and spending lazy weekends at home with his wife and son.

Dr. Shalaby graduated with honors from the University of Cairo, Egypt. After moving to USA, he completed his Residency in Internal Medicine from the University of Miami Regional Campus in 2012. He began his academic career as an assistant professor of Medicine at Case Western Reserve University in Cleveland, Ohio, where he also received an award for Teaching Excellence. Thereafter, Dr. Shalaby pursued fellowship training in Cardiovascular Diseases at UTMB from 2015-2018. After fellowship graduation he joined UTMB as an Assistant Professor in Invasive Cardiology.

His professional interests include cardiac imaging, clinical cardiology, congenital heart diseases and medical education. He is board certified in Echocardiography, Nuclear Cardiology, and Internal Medicine. Dr. Shalaby sees patients at the UTMB Primary & Specialty Care Clinic in Texas City and at the UTMB Clear Lake Campus Clinic Building in Webster, TX.

Dr Khaled Chatila completed his medical school at the prestigious American University of Beirut in Lebanon. He then joined as a post-doctoral research fellow in cardiovascular disease at Baylor College of Medicine where he performed cutting edge basic science research studying the pathogenesis of myocardial infarction in animals. He then joined the Good Samaritan Hospital a Johns Hopkins affiliate in Baltimore where he completed his residency training in internal medicine.

Dr Chatila then moved to Louisville Kentucky for his cardiology training and after completion of general cardiology he stayed on for an additional fellowship in advanced heart failure and transplant where he learned under the guidance of world renowned experts in the field about the care and management of patients with end stage heart failure, mechanical heart pumps (LVAD) and heart transplantation. He then joined UTMB division of cardiology. Along with him was his wife Dr Hania Kassem who also joined UTMB division of nephrology.

Dr Chatila is extremely passionate about teaching medical students, residents and Cardiology Fellows. He is also interested in multiple research topics and currently working on different research projects. Dr Chatila has been selected for three years in a row 2016-2018 by Super Doctors® as one of Texas rising stars physicians. Dr Chatila has two kids a son and daughter with whom he spends most of his free time.

Sinju Jacob is a nurse practitioner specializing in general cardiology. She has over 17 years of experience in direct patient care. She graduated in 2003 with a BSN and worked in various cardiac and acute care settings in India and United states. She completed her MSN – NP in 2017 from UTMB school of nursing., and she holds a certification from American Academy of nurse practitioners as an Adult gerontology nurse practitioner. Before becoming a part of UTMB cardiology she has worked in internal medicine setting. she has been taking care of patients in both inpatient and outpatient setting. She has received various awards and scholarships in her academic and professional career. She is passionate about patient education. She believes strongly in preventive medicine.

She is multilingual she can speak Malayalam, and Hindi fluently. She loves to read and travel. Singing is her another passion. She is settled in league city, Texas with her husband and 3 children.

Dr. Jose Iturrizaga was born and raised in Lima, Peru where he attended Medical School at Universidad Nacional Federico Villarreal. He then moved to the US in 2007 to pursue his passion for medicine by training in Chicago, Birmingham, and New York. Dr. Iturrizaga specializes in Advanced Heart Failure, Transplant and Pulmonary Hypertension. He ensures his patients are fully knowledgeable about their heart condition, and takes time with each patient and family to answer their questions. Dr. Iturrizaga's goal is to maintain the best quality of life for each and every patient. He loves to read, cook and play soccer, and enjoys spending time with his family.

Dr. Cai completed his residency in internal medicine at Geisinger Medical Center in Pennsylvania. Then he completed his fellowship in cardiology at UTMB and The Methodist DeBakey Heart & Vascular Center in Houston. Dr. Cai joined UTMB Angleton Danbury Campus as an Assistant Professor and medical director in 2014.

Dr. Cai's professional interests include cardiac imaging, clinical cardiology, medical education, and quality improvement in cardiac care. He is board certified in cardiovascular diseases, internal medicine, echocardiography, nuclear cardiology, cardiac CT, and vascular ultrasound. He is a fellow of the American College of Cardiology and the American College of Physicians.

Dr. Cai has been involved in multiple clinical studies and research projects. He has published extensively and serves as a reviewer for a number of medical journals.

Dr. Cai serves cardiac and vascular patients including those with any established cardiovascular diseases. He also provides risk factor management and preoperative evaluation.

Dr. Fatima Khan graduated from Riphah International University in Islamabad, Pakistan. She completed her internal medicine residency at Abington Hospital Jefferson Health in Pennsylvania and her general cardiology fellowship at the Western Connecticut health network at Danbury Hospital in Connecticut. She developed an interest in advanced heart failure and transplant cardiology in her early years of training. She completed her sub-specialty training in advanced heart failure and transplant cardiology at the Leonard M. Miller School of Medicine, University of Miami. Her other areas of interest are infiltrative cardiomyopathy and shock. Outside work, she likes to spend time on the beach and is a food enthusiast.

Dr. Sabayon is an established and highly skilled Cardiac Electrophysiologist. His work was informed by his fellowship training at Emory University's nation-leading electrophysiology center. He is skilled in cutting-edge technology and Cardiac Electrophysiology procedures with demonstrated success in complex device implantation and extraction therapies, simple and complex ablation therapies, and left atrial appendage closure therapies. He is a member of the Heart Rhythm Society and has been a keynote speaker on multiple medical platforms. He currently practices at UTMB Clear Lake and League City Campuses and is the Electrophysiology Lab Director at the UTMB Clear Lake Campus and Interim Electrophysiology Lab Director at the UTMB Galveston Campus.

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Dr Motiwala is an Interventional Cardiologist with expertise in catheter-based management of coronary, peripheral vascular, and structural heart disease. He has had a strong interest in cardiovascular diseases since the early days of medical school. After medical school he completed residency training in Dallas, TX and then moved to Chicago for his Cardiology fellowship. He moved to Philadelphia for his Interventional Cardiology fellowship and is excited to be back to Texas as Assistant Professor at UTMB. When not working, Dr Motiwala enjoys travelling and spending time with his family. He is also an avid runner and enjoys various sports in his free time.