The Similkameen Spotlight: This article from the South Okanagan Similkameen Division of Family Practice explains what to do and where to go in Princeton, should you need to access a family doctor, nurse practitioner, emergency care or other health services. Booking an appointment: Patients needing an appointment with a family doctor in Princeton are asked to call ahead for care at the Cascade Medical Centre, 250-295-4482, between 9 a.m-4 p.m.