Endocrinology Associates of BCH | Boulder Community Health. Endocrinology Associates of BCH. Handicap Access Endocrinology Associates of BCH. 5495 Arapahoe Avenue. Suite 100. Boulder, CO 80303. Get Directions Phone: 303-415-4344 Fax: 303-293-0627. Hours. Monday: 8:00 am - 5:00 pm..