Dr Ostermeier, or Chuck, is currently the Director of the Diagnostic Andrology Laboratory at M Health Fairview. He also holds an Adjunct Assistant Professor appointment in the Department of Urology at the University of Minnesota. Chuck is a well-regarded sperm biologist with more than 30 peer reviewed publications, book chapters and patents, some of which appear in the most prestigious journals including Nature and The Lancet. He received his PhD from the University of Wisconsin-Madison and since held a variety of rolls in biomedical research institutions and commercial entities, all focused on regulating and understanding male fertility.