He served as a flight surgeon for the U.S. Army from 1967 to 1969. After moving to Denver, he practiced at Children's Hospital in 1972-73. He was a Radiologist for 23 years at Lutheran Medical Center, retiring from there in 1996. He was elected to the Colorado House of Representatives where he has served since 1998. He is a past member of the Joint Budget Committee and presently serves on the House Appropriations and Finance Committees. Witwer will resign from the Legislature prior to the effective date of his appointment as CBMS director on July 1. The Governor also issued an Executive Order creating the CBMS Steering Committee charged with reviewing the Deloitte recommendations, making additional recommendations and monitoring the continued implementation of CBMS. Members of the Task Force include: