Key Relationships: Co-workers/Health System Employees, Outside Agencies/Other Health Care Providers, General Public/Visitors/Volunteers, Physicians/Medical Office Staff, Students/Interns/Residents/Outside Instructors, Patients, Families, and Significant Others, Vendors/Clients, Third Party Payors/Insurance Companies. The Visiting Nurse Association provides a range of home health care services to patients of all ages-- from infants to the elderly--in the comfort of their own homes.