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.

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.

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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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I believe in working together with each patient and their family to provide the best possible outcome and experience. My goal is to bring together world-class care with leading-edge technology and innovation.

Dr. Bashar Al hemyari is an Assistant Professor of Medicine at the Division of Cardiology at the University of Texas Medical Branch. Dr. Al hemyari obtained his MD from the University of Baghdad College of Medicine. He then worked on Clinical Research at David Geffen School of Medicine at UC Los Angeles to help optimize care for patients with cardiovascular and kidney disease.

Dr. Al hemyari completed his Internal Medicine Residency at the UC Riverside/RCH and was awarded as the Best Clinical Resident & Best Overall Resident. He had a great interest in the field of Cardiology and pursued fellowship in Cardiovascular Disease at the University of Kentucky. Dr. Al hemyari joined the Cardiology Department at UTMB in September of 2022.

Dr. Al hemyari is a general cardiologist with a special interest in preventive cardiology, cardiac disease in women, coronary artery disease, heart failure, arrhythmias, and cardiac CT imaging. He is board certified in Internal Medicine, Nuclear Cardiology, Cardiac Echocardiography. Dr. Al hemyari provides care for patients at UTMB Galveston, League City campus and Clear Lake campus.

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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. 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. Raja is a clinical Assistant Professor of Medicine at UTMB Division of Cardiology. He completed his medical residency training from Texas Tech University and Cardiology Fellowship from Tulane University School of Medicine, New Orleans, LA. He joined UTMB Division of Cardiology for his sheer interest in academic medicine and teaching.

His clinical interests include preventive cardiology, non-invasive cardiac imaging, general cardiology, invasive cardiology and medical education. He is actively involved in teaching and training Cardiology fellows and residents during inpatient services at UTMB Jennie Sealy Hospital and TDCJ. His philosophy of treating patients is to treat them like his family with great compassion and respect. He focuses to provide best, affordable and evidence-based care.