Leadership About Leadership Medical Directors Allison Young, M.D. Amy M. Backer, M.D. Carmen L. Wiley, PhD, DABCC Hongxiu Ji, MD Board of Directors Stanley T. Leung, M.D. Sanjay Logani, M.D. Dane W. Sandquist, M.D. Liqun Yin, M.D. Novae B. Simper, M.D. Isaac R. Grindeland, M.D. Jon V. Rittenbach, M.D. Executive Team Mari Patel, DM, MHA, CT(ASCP)HTL Kristina Johnson Heather Major