Dr. McGinty did her Medical training in Ireland at the National University and then came to the USA for residency at the University of Pittsburgh where she was Chief Resident. Her fellowship was in Women's Imaging at the Massachusetts General Hospital. While working at Montefiore Medical Center in the Bronx she completed an MBA at Columbia University.

She is an internationally recognized expert in imaging economics. She has served an advisor to the CPT Editorial Panel, the JCAHO and the National Quality Forum. She was Chair of the American College of Radiology's Commission on Economics and was the radiology member of the AMA’s Relative Value Update Committee from 2012-2016.

In May 2018 she was elected as the Chair of the ACR's Board of Chancellors, the first woman to hold this office. She was until 2013 Managing Partner of a 70 physician multispecialty medical group on Long Island. In 2014 she joined the faculty at Weill Cornell Medicine in New York City. As well as her clinical practice there she serves as Chief Strategy Officer and Chief Contracting Officer for the Weill Cornell Physician Organization’s more than 1400 members. Her role as lead negotiator for managed care contracts at Weill Cornell Medicine incorporates both traditional fee for service agreements as well as value based payment arrangements. She is also a member of WCM’s digital health strategy team.

She serves as a Non-Executive Director of IDA Ireland, the national foreign direct investment agency and is also on the Medical Advisory Board of Wellthie, a healthcare technology start-up.

Her published work has focused on payment models for imaging, most recently a bundled payment for breast cancer screening. Recently she has focused on the impact of Artificial Intelligence on Medical Imaging and has spoken at the Turing Institute and to the WHO Focus Group on AI in Healthcare on this topic. In 2015 she was voted Radiology’s Most Effective Educator by the readers of Aunt Minnie, a radiology news site with more than 140,000 members. She has more than 11000 followers on Twitter.