Who are we?

Our team is a group of experienced clinical researchers, epidemiologists, user experience experts, programmers, data scientists and study coordinators. The Eureka Research Platform is building on the success of the innovative Health eHeart Study, which harnesses the power of online and mobile technology to gather data from study participants all over the world through devices such as mobile applications, sensors, connected devices, and the internet.  The “bricks and mortar” days have passed, we have over 180K active participants and growing contributing data remotely and stored in the cloud!

Jeffrey E. Olgin, MD

Professor of Medicine & Chief of Cardiology, University of California San Francisco

Dr. Olgin is a practicing cardiologist and cardiovascular researcher. He has been involved in leading clinical trials and clinical research for over 20 years. He is one of the Principal Investigator of the Health eHeart Study and one of the creators and Principal Investigator of the Eureka Research Platform.

Mark J. Pletcher, MD, MPH

Professor of Epidemiology & Biostatistics and Medicine, University of California San Francisco

Dr. Pletcher is a practicing internal medicine physician and an epidemiologist. His research focuses on prevention of cardiovascular disease, how exposure to cardiovascular risk factors like blood pressure and cholesterol during young adulthood may contribute to heart disease later in life, and how to use emerging technology to improve health.

Gregory M. Marcus, MD, MAS

Professor of Medicine & Director of Clinical Research for Cardiology, University of California San Francisco

Dr. Marcus is a practicing cardiac electrophysiologist and cardiovascular researcher. His research interests include investigating causes and optimal treatments for abnormal heart rhythms, prevention of stroke, and the influences of common exposures (such as alcohol, caffeine and tobacco exposure) on health.

Carol Maguire, RN

Project Director

Catherine Stolitzka

Product Manager

David Wen

Data Engineer

Emina Seremet

Senior Project Manager

Health eHeart Study/Specialty Centers

Lisa Lim

Senior Clinical Research Coordinator

Robert Avram, MD, MSc, FRCPC

Cardiologist & Postdoctoral Scholar

Hollis Moore, PhD

Protocol Project Manager

Xochitl Butcher, BSA

Protocol Project Manager

Nancy Wu, BS, MS

Clinical Research Coordinator

Todd Parsnick

Lead Programmer

Jairo Vazquez


Alex Cabrera


Ricky Barrera


Abel Sierra


Aldo Isreal


Armando Godinez


Vadim Ananyev

QA Engineer