Our vein clinic is conveniently located off of C-470 in Littleton. Expanding West within the Denver-metro area is the perfect opportunity for our vein specialists to reach more patients with vein disease and in need of cosmetic treatments. American Vein & Vascular Institute 300 Plaza Dr., Suite 275 Littleton, CO 80129 Monday – Thursday 7am-5:30pm Currently closed Tuesdays Phone: 720.279.1240 Fax: 800.276.7170 After Hours 888.730.VEIN (8346) Schedule Your Appointment Have we cared for you? Please leave us a review. It’s the greatest compliment we could receive. Get Directions to this location.