Patient registration or to make a medical appointment: Ansin Building at 1340 Boylston Street: 617.927.6000. Fenway: South End at 142 Berkley Street, Boston, MA: 617.247.7555. Sidney Borum, Jr. Health Center: 617.457.8140. Patient registration or to make a behavioral health or addiction recovery & wellness appointment: Behavioral Health Intake ....