HAP Insurance (Health Alliance Plan) is a Michigan-based provider of health insurance policies and services to individuals/families. The company can trace its history to 1956 (the year of HAP’s initial founding, the company as it stands today was formed in 1979). In addition to standard individual/family plans, Health Alliance Plan also provides services to groups (employers, organizations, etc.) as well as offers medicare policies. Current policyholders can access their HAP online account by clicking the login link on this page.