As a surgical resident at Southwestern General Hospital, Dr. Klein had the opportunity to work with many surgeons and in many specialties including General Surgery, Orthopedic Surgery and Plastic Surgery. Dr. Klein worked closely with physicians at the El Paso Veterans Administration Hospital. Dr. Klein spent a year at the West Palm Beach FL Veterans Administration Hospital as well.

Dr. Klein became interested in medicine at an early age. Throughout his life Dr. Klein has participated in many organizations related to health care. Dr. Klein volunteered at local hospitals and worked with several physicians before attending college.