Tim Stumpf is an experienced oncology professional with over 15 years in medical affairs, focusing on molecular diagnostics and precision medicine. Tim served as Director of Medical Science Liaisons at Castle Biosciences, Inc. from 2015 to 2025 and held the role of Senior Genomic Science Liaison at Genomic Health from 2013 to 2015. Tim's career includes working as a Clinical Oncology/Molecular Pathology Specialist at Genentech from 2004 to 2012. Currently, Tim is a Regional Clinical Dermato-Oncology Specialist at Natera and is pursuing a Bachelor of Science in Health Sciences at the University of Wisconsin-Milwaukee, alongside a Bachelor of Science in Nursing at Creighton University, where they graduated summa cum laude. Additionally, Tim completed a Graduate Genetics and Genomics Program at Stanford University in 2016.
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