He is board-certificated in anatomic and clinical pathology, molecular genetic pathology, histocompatibility and immunogenetics. He is director of HLA and molecular diagnostic laboratories at Ann and Robert H. Lurie Children’s Hospital of Chicago. He has served as chair of the Molecular Oncology Resource Committee for CAP, the Solid Tumor Representative to the Clinical Practice Committee for AMP and chaired the NGS Analytical Validation Working Group of the Clinical Practice Committee.