The NHS has three full-service Ontario Breast Screening Program (OBSP) Centres and Assessment Clinics in Niagara Falls, St. Catharines and Welland Sites. Port Colborne and Fort Erie Sites offer an OBSP Satellite Clinic, where appointments for screening mammograms are offered.

Women aged 50 and up can call directly to make an appointment, with follow-up appointments made as necessary by OBSP staff.