807 17th Street, Greeley, CO 80631. Phone: 970.353.1177. Fax: 970.353.1965. Serving all Coloradans with Dignity and Respect. The mission of Colorado Health Network (CHN) is to equitably meet the evolving needs of people affected by HIV and other health conditions through prevention, care, and advocacy. Founded in 1983, CHN is Colorado's ....