When purchasing and having personal affordable health insurance, there are several health terms that would be good for an individual to acquaint themselves with. A claim form is an application for payment of benefits under the insurance policy that you have. A group model HMO is an HMO that contracts with a group of multi specialty physicians who are employees of the group practice that work under this insurance policy. Purchasing alliances are locally based and privately operated organizations that offer group health insurance to businesses and companies that house less then 100 employees. This helps to keep the rates low for the employees. A rebate is basically a reduction in price of a service performed.