Located off E Eisenhower Blvd, in the Bank of Colorado building. American Vein & Vascular Institute 4848 Thompson Pkwy, Suite 300 Johnstown, CO 80534 Tuesday-Friday 7am-5:30pm Phone: 970.800.4145 Fax 970.593.5946 After Hours 888.730.VEIN (8346) Schedule Your Appointment