Congratulations Dr. Christensen on your retirement! Aspen Chiropractic welcomes his patients to our location. smon hitoptactioc (815) 748-3102 650 Peace Rd., Suite C DeKalb, IL 60115 Dr. Bonnie Harder Dr. John Chatellier Congratulations Dr. Christensen on your retirement! Aspen Chiropractic welcomes his patients to our location. smon hitoptactioc (815) 748-3102 650 Peace Rd., Suite C DeKalb, IL 60115 Dr. Bonnie Harder Dr. John Chatellier