Electrophysiology Fellows

AJ Rogers, MD, MBA

2nd Year

Dr. Albert (A.J.) Rogers is a Cardiac Electrophysiology Fellow and at Stanford University. He has over 10 years of medical technology research experience ranging from basic and translational research to device development and entrepreneurship. His undergraduate coursework focused in Biomedical Engineering at Duke University focused on neurobiology, signal processing, computer vision, and computational biology. He earned a combined MD and MBA from the University of North Carolina School of Medicine and the Kenan-Flagler Business School (focus in Healthcare Entrepreneurship). While working toward these degrees, A.J. participated in epidemiologic and translational research in the academic setting and worked as a clinical engineer for a start-up medical device developing an autonomic therapy for acute decompensated heart failure. He completed clinical training in Internal Medicine and Cardiovascular Medicine at Stanford University and served as Chief Cardiology Fellow. He then pursued additional research training on an NIH-funded fellowship. His research now focuses on the physiologic mechanisms of cardiac fibrillation using techniques of human signal processing, machine learning, and in silico modeling. Outside of his research and clinical pursuits, A.J. enjoys athletics of all kinds (especially sand volleyball), travelling, and live music events.


Andrew Vu, MD

2nd Year

Dr. Andrew Vu is a native of San Jose, California. He graduated from Santa Clara University with a Bachelor of Science in Chemistry, and obtained his MD degree from Creighton University in Omaha, Nebraska. He went on to complete internal medicine residency at White Memorial Medical Center in Los Angeles, California, where he also served as Chief Resident, and cardiology fellowship at California Pacific Medical Center in San Francisco, California. His research interests and publications have focused on cardiac implantable electronic device outcomes and innovation, but he enjoys all aspects of cardiac electrophysiology. He plans to pursue an academic career as a clinician-investigator in cardiac electrophysiology.


Shana Greif, MD

1st Year

Dr. Shana Greif grew up in Dobbs Ferry, New York. She graduated from Cornell University with a B.A. in psychology and obtained her M.D. from New York Medical College. She went on to complete her internal medicine residency at Kaiser Permanente Los Angeles Medical Center, where she participated in research evaluating outcomes of cryoballoon versus radiofrequency catheter ablation of atrial fibrillation. She completed her general cardiology fellowship at University of Hawaii, where she also served as Chief Cardiology Fellow and as a Clinical Faculty Instructor. During fellowship, she was involved in clinical research related to minimizing fluoroscopy use during electrophysiology procedures, including zero-fluoroscopy atrial fibrillation ablation and zero/low-fluoroscopy coronary sinus cannulation during implantation of cardiac resynchronization therapy devices. She is excited to continue her clinical and academic career as a Cardiac Electrophysiology Fellow at Stanford.


Sunil Vasireddi, MD

1st Year

Dr. Sunil Vasireddi attended the BS/MD Honors program in Engineering and Medicine at the Illinois Institute of Technology and Chicago Medical School. For over 12 years, Dr. Vasireddi has developed innovative medical technologies by bridging diverse skillsets across multiple fields. During his undergraduate training in Biomedical Engineering, he focused on signal processing and medical physics where he studied MRI properties of cadaveric human brains in Alzheimer’s disease and helped develop a novel X-ray modality that can image soft tissue.  In medical school, he devised neural-network algorithms to map entire sea-slug brains with single-neuron resolution and discovered a new class of semi-committed neurons that play an important role in learning and memory. Next, he created algorithms for non-invasive phase-mapping of human cardiac arrhythmias using electrocardiographic imaging (ECG-I) in Dr. Yoram Rudy’s lab, and is continuing to develop a machine-learning based method to non-invasively map regional lung function using X-ray diffraction. For his contributions, he was elected to be a Senior Member of the IEEE (Institute of Electrical and Electronics Engineers). 

As part of the Physician-Scientist Pathway, Dr. Vasireddi completed his Internal Medicine residency combined with Cardiology Fellowship and post-doctoral research training at MetroHealth/Case Western in Cleveland, Ohio. During this time, he discovered that specific intrinsic cardiac stems cells can be isolated from the tips of extracted device leads and that they might regulate arrhythmias in diseases like HF and ARVC by modulating inflammation via secreting cytokines and hormones. In addition, Dr. Vasireddi created a simple mathematical model for improving LV Mass estimation using routine echocardiography and studied the clinical importance of post-operative troponin screening in non-cardiac surgery patients (featured by ACC-Ohio). For this work, Dr. Vasireddi was awarded a Clinician-Scientist training grant by the American Heart Association, and two Young Investigator Awards by both the Cardiac EP society at HRS, and the American College of Cardiology.

EP Fellowship