Patrick Hall, Robert Cook

Castle Biosciences has appointed Patrick Hall as executive director of medical affairs, and promoted Robert Cook to executive director of research and development. Both are newly created positions. 

Hall, who will oversee Castle Bio's medical affairs strategies and programs, has 27 years of experience in the industry, including 11 years at Genomic Health, most recently as director of genomic science liaisons. Prior to that, he was medical science liaison at Genentech. 

Cook's was previously senior scientist at Castle Bio, which he joined in 2011. He has a Ph.D. from Northwestern University in biochemistry, molecular and cellular biology and did a post-doctoral fellowship at Baylor College of Medicine. Prior to his doctoral degree, he was at Gen-Probe, now part of Hologic.