Klein was awarded the 2012 Preceptor of the Year Award from Lincoln Memorial University-DeBusk College of Osteopathic Medicine (LMU-DCOM) in Harrogate, TN. The award is presented annually to an individual who consistently provides outstanding clinical instruction to LMU-DCOM third and fourth-year students. The award recognizes a preceptor who displays a passion for teaching, a commitment to service and dedication to the highest ethical standards. After graduating from DMU in 1996, Klein served in the United States Navy Medical Corps until 2004 when he was honorably discharged at the rank of lieutenant commander. He currently serves as hospitalist and program director of Apogee Physicians and serves as the site director for the LMU-DCOM community hospital rotation at Lakeway Regional Hospital in Morristown, TN. In 2011, Klein was named the Apogee National Program Director of the Year.