Provincial Health Services Authority | 89,707 followers on LinkedIn. Provincial Health Services Authority of BC. Health news & resources for British Columbians. Moderation: phsa.ca/privacy | Canada's first provincial health services authority. Provincial Health Services Authority (PHSA) is one of six health authorities – the other five health authorities serve geographic regions of BC. PHSA's primary role is to ensure that BC residents have access to a coordinated network of high-quality specialized health care services.