Provider Directory / B / Mary T Barrett MD Mary T Barrett, MD OB/GYN Specialties: OB/GYN Phone Number: 303-651-2800 Fax: 303-774-9100 Website Link: http://www.centennialwomenhc.com/?utm_source=gmb_auth Address: Centennial Women's Health Center 231 East 9th Ave, Suite 1A, Longmont, CO 80504 Get Directions