Dr. Epstein has chaired the Science Committee of the Society for Cardiovascular MRI (SCMR) (2008) and the ISMRM Cardiac Study Group (2009). He served as an ad hoc member of the NIH NIBIB Board of Scientific Counselors in 2012 and as an international reviewer for the South African Medical Research Council 5-year review of the University of Cape Town Medical Imaging Research Unit (2010). He was recently a member of the Board of Trustees for the SCMR (2013-2015), and he recently served as a standing member of the NIH Study Section Biomedical Imaging Technology A (2012-2016). He is currently a Deputy Editor for Magnetic Resonance in Medicine (2011 – present, the leading technical journal devoted to MRI physics and engineering), and is a member of the American Heart Association Mid-Atlantic Affiliate Research Committee (2014-2017). Dr. Epstein was the only biomedical engineer invited to speak at the American College of Cardiology Think Tank on the future of cardiac imaging in Washington, DC in 2015. Dr. Epstein is also presently the elected Chair of the American Institute for Biological and Medical Engineering (AIMBE) Academic Council, a group comprised of all BME Department Chairs across the nation. For contributions to research and service, Dr. Epstein is an elected Fellow of three major societies, namely the ISMRM (2013), the American Institute for Biological and Medical Engineering (2014), and the American Heart Association (2014).