Under the direction of Dr. Hansen Yuan, an internationally renowned spine surgeon and past president of the North American Spine Society, Dr. Chang had gained valuable insight in understanding spinal anatomy, function, and form as they relate to the whole person.  Even though mastering precise surgical skills, Dr. Chang had learned to value non-operative care.   Correspondingly, less than ten percent of Dr. Chang’s patients have undergone surgery since he has been in private practice.  

Yet while emphasizing a non-operative approach, Dr. Chang continues to perform among the most spinal surgeries in the Chicago area.  This extensive volume of cases has translated not only into technical proficiency but also innovative ideas to make surgeries safer and more effective.  His vast experience has not gone unnoticed.  Dr. Chang is a much sought-after speaker for regional and national conferences.  In addition, numerous spinal companies have requested his input and advice on new implant and instrumentation designs.  Throughout his career,
Dr. Chang has earned a strong reputation for the highest professional and ethical standards.