HS 330: Health Care Systems, Financing, and Policy
The HS 330 domain tests how health care is organized, paid for, regulated, and evaluated. Expect questions that ask you to distinguish payers from providers, public from private coverage, and coverage from actual access. The exam favors applied reasoning: given a patient situation, identify the likely payer, the cost-sharing rule, or the quality measure being described.
System map
- Providers deliver care; payers finance it; regulators set rules; purchasers buy coverage; public health agencies protect population health.
- Financing, delivery, and regulation are separate layers. A hospital is a provider even when an insurer pays the claim.
- U.S. coverage is mixed: employer-sponsored insurance, individual Marketplaces, Medicare, Medicaid, CHIP, VA/Tricare, and uncompensated care.
Core payment and coverage rules
- Private plans use premiums, deductibles, copayments, coinsurance, networks, and utilization management such as prior authorization.
- Medicare is federal social insurance. Part A covers inpatient hospital care; Part B covers outpatient and physician services; Part C is Medicare Advantage; Part D covers outpatient drugs. Eligibility includes age 65 and certain disability or ESRD pathways.
- Medicaid is a federal-state program with categorical and income eligibility. It can cover long-term services and supports that Medicare generally does not.
- ACA Marketplaces offer subsidized plans and require essential health benefits. Guaranteed issue and dependent coverage to age 26 are core rules.
- EMTALA requires Medicare-participating emergency departments to screen and stabilize emergency conditions regardless of ability to pay.
Evaluating performance
- Donabedian framework: structure, process, outcome.
- Cost, access, and quality trade-offs: cost sharing can reduce spending but also needed care.
- Social determinants and disparities affect outcomes independent of insurance.
Worked example
A 67-year-old with Medicare Parts A and B and limited income needs a hospital stay and then nursing-home rehabilitation. Medicare Part A is the primary payer for the inpatient stay if coverage rules are met. Skilled nursing facility care may be covered after a qualifying hospital stay, but custodial long-term care generally is not. If the patient meets state Medicaid eligibility, Medicaid may cover long-term services and supports and may help with cost sharing. The reasoning: identify the benefit category first, then the payer, then the cost-sharing or eligibility rule; do not assume Medicare covers everything.
Traps that cost marks
- Calling Medicaid “federal Medicare for the poor” - it is jointly funded and state-administered.
- Confusing Medicare Advantage with Medigap: Part C is managed Medicare; Medigap supplements original Medicare.
- Treating insurance as access: networks, transportation, and provider supply still matter.
- Mixing charges, costs, and payments.
- Forgetting that EMTALA is an emergency-stabilization mandate, not a coverage program.