Heather is a Professor in the Department of Medical Oncology and Therapeutics Research and Associate Director of the Division of Cancer Genomics at City of Hope National Cancer Center. Her research focuses on Lynch syndrome and universal tumor screening for Lynch syndrome. She has >170 publications on the prevalence of Lynch syndrome among colorectal and endometrial cancer patients, the best testing protocols, cost-effectiveness, and referral guidelines for cancer genetics. She was on the Board of Directors for the American Board of Genetic Counseling from 2006-2011, serving as President in 2009 and 2010. She has been on the Steering Committee of the National Colorectal Cancer Roundtable since 2016. She was on the Council of the Collaborative Group of the Americas on Inherited Colorectal Cancer from 2016-2019, serving as president in 2017-2018. She was the Secretary/Treasurer of the National Society of Genetic Counselors in 2021-2022.