With an indemnity plan (sometimes called fee-for-service), you can use any medical provider (such as a doctor and hospital). You or they send the bill to the insurance company, which pays part of it. Usually, you have a deductible—such as $200—to pay each year before the insurer starts paying.
Once you meet the deductible, most indemnity plans pay a percentage of what they consider the “Usual and Customary” charge for covered services. The insurer generally pays 80 percent of the Usual and Customary costs and you pay the other 20 percent, which is known as coinsurance. If the provider charges more than the Usual and Customary rates, you will have to pay both the coinsurance and the difference.
The plan will pay for charges for medical tests, spine surgeries, and prescriptions as well as from doctors and hospitals. It may not pay for some preventive care, like checkups.