Dr. Timmerman is a Family Medicine and Sports Medicine Physician in Wisconsin, USA. As a Sports Medicine doctor, he works with many high school and college athletes, as well as endurance enthusiasts such as bicyclists, triathletes, and marathon runners. In addition, he teaches Medical Students and Residents as an Associate Professor for Sports Medicine at the University of Wisconsin Medical School.
Dr. Timmerman also serves as the Medical Advisor for Trek Bicycle Corporation. In this role, he has been involved in research and development of products such as saddles, gloves, and shoes. He also has been an integral part of the Trek Precision Fit Program from its inception almost a decade ago. As the Lead Medical Instructor, he teaches the medical aspects of bike fitting, including anatomy, biomechanics, and injury prevention related to bike fitting.
An endurance athlete himself, Dr. Timmerman has finished 10 marathons, four Ironman triathlons, and seven L’Etape du Tour bicycle races.