How many types of medical billing are there in the US. Who in the USA Covers Medical Bills. However, if a patient does not have insurance, they will be responsible for paying the full amount of the hospital bill out of pocket. In the US, there are three different types of health insurance: Point of Service (POS), Preferred Provider Organization (PPO), and Health Maintenance Organization (HMO). Value-based payment models and fee-for-service billing are the two most popular styles of medical billing.
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