Stacy W. Gray Lab

Pat Boyd, Ph.D., is a social psychologist and behavioral scientist by training. He is currently a Staff Scientist in the Division of Clinical Cancer Genomics at City of Hope. He completed his postdoc as a Cancer Research Training Award fellow at National Cancer Institute in the Health Behaviors Research Branch. Following his postdoc, he worked as a Senior Analytics and Research Scientist at Press Ganey before joining City of Hope. Pat’s research examines how health behaviors and intentions are shaped by multiple levels of influence, and how existential concerns, personality, and emotions are important factors to consider in health settings. He utilizes both qualitative and quantitative methodologies in his research.

Sandra Davey, M.P.H., is a Clinical Research Administrator in the Gray Lab. She received her Master of Public Health in Health Education from California State University, Northridge, and her Bachelor of Science in Community Health Science from California State University, Los Angeles. She specializes in managing complex clinical research protocols and has extensive experience overseeing multi-site studies in cancer research. She has a particular interest in precision medicine, improving health communication and promoting health equity.

Yi Xiao is a data scientist at the SWG Lab, where she contributes to projects at the intersection of data science, public health, and biomedical research. She joined the lab in 2022 after earning her Master’s degree in Biostatistics from Columbia University. Yi brings a strong foundation in statistical modeling, data visualization, and machine learning, with a particular interest in applying quantitative methods to improve health outcomes and inform clinical decision-making. Yi is passionate about using data to drive meaningful change and is committed to advancing research through rigorous, transparent, and innovative approaches.

Jenna Hoopes is a biostatistician at the Gray lab. She received a bachelor’s degree at the University of California Los Angeles and a graduate degree in Biostatistics at Drexel University. Prior to joining the lab in 2025, she worked in neuroscience, psychology and cancer research at UCLA, the University of Pennsylvania, and most recently Thomas Jefferson University. She is ecstatic about continuing her work in cancer research at the City of Hope, one of the top cancer centers in the country.

Justin Martinez is a clinical research associate in the Gray lab. He earned his bachelor's degree in cognitive science with a specialization in neuroscience from the University of California, San Diego, before joining the lab in 2024. As an aspiring physician, he is passionate about reducing barriers to genetic care and empowering patients through informed medical decisions, particularly for underserved communities. He considers it an honor to be involved in research that focuses on improving early cancer detection and enhancing family communication around hereditary risk, helping bridge the gap between research and real-world clinical applications.

Cassiel Suarez serves as a clinical research assistant in the Gray Lab. She earned her bachelor's degree in psychology from the University of California, Davis, complemented by a minor in Chicano Studies. Cassiel is enthusiastic about pursuing a graduate degree in clinical psychology and is dedicated to continuing her career in research.

Loretta Sanchez is an Executive Assistant at City of Hope, supporting Dr. Stacy Gray. She received her Bachelor of Arts Degree in Psychology from California State University Los Angeles. She has over 25 years of Office Administrative and Management experience managing complex calendars, streamlining effective communication, and enhancing her organizational skills. She has an unwavering commitment to the teams she supports, including Dr. Stacy Gray’s Lab.

Sarah Labib is a clinical research associate in the Gray lab. She completed her Bachelor of Science at the University of California Santa Barbara with a major in biology and a minor in religious studies. She is interested in becoming a physician.