In other words, a dental patient will know that a visit to the dentist will cost a certain dollar amount - such as a $10 co-pay - instead of going into the visit knowing that the co-pay will some percentage of the total cost of the visit.
Learn the premiums for different plans, what the co-pay costs are for prescriptions and doctor and emergency room visits, and whether or not the plan you're interested in covers preexisting conditions you might have.
This means the insurance, which is sometimes called major medical insurance, not only has a co-pay for services rendered, but the policy will also require you to pay the deductible that you agreed to pay.
When you buy this type of insurance policy, usually your only cost is the insurance itself, a small co-pay, and any treatment you choose to receive that is not covered by your policy.
If you require a monthly prescription for chronic medical condition, ask your doctor for larger supplies to make sure you only need to pay one co-pay per period.