Dr. Eichenbaum was born and raised near Denver, CO. He attended the University of Colorado where he graduated cum laude in Biochemistry and History and was an avid skier and outdoorsman. After college, Dr. Eichenbaum earned his medical degree from Jefferson Medical College in Philadelphia, PA from which he graduated in 2003.

After obtaining his medical degree, Dr. Eichenbaum completed a postdoctoral research fellowship at the Rothman Institute in Philadelphia. During his year in this position, he wrote and published several orthopaedic articles and chapters. Dr. Eichenbaum subsequently stayed in Philadelphia to complete residency at Thomas Jefferson University Hospital in the Department of Orthopaedic Surgery. Following residency, he was accepted to and fulfilled the requirements of the prestigious Philadelphia Hand Center Fellowship in Hand and Upper Extremity Surgery. While in fellowship, Dr. Eichenbaum received extensive training and developed advanced skills for diagnosing and treating conditions of the elbow, wrist and hand.