Kelly Sonnenfeld, PhD Kelly Sonnenfeld, PhD Address 1: 4786 McMurry Ave. Address 2: Suite 2B City: Fort Collins CO ZIP Code: 80525 Website: https://drkellysonnenfeld.com/ Email: kelly@drkellysonnenfeld.com Programs: Private Practice Population: Adults Adolescents Substance Abuse Disorders Young Adults Primary Contact: Kelly Sonnenfeld,