9.3 Managed Care: HMO, PPO, POS, HSA/HDHP

Managed care controls cost and quality by integrating financing and delivery of care, steering members to contracted providers, and emphasizing prevention. The exam tests the structural differences among HMOs, PPOs, and POS plans, plus the tax-advantaged HSA paired with a high-deductible health plan (HDHP). Memorize the matrix of gatekeeper requirement, out-of-network coverage, and provider payment.

Health Maintenance Organization (HMO)

An HMO delivers comprehensive care for a fixed prepaid premium and emphasizes preventive care.

• Members select a primary care physician (PCP) who acts as a gatekeeper, controlling access to specialists via referrals.
• Care is generally covered only in-network; out-of-network care is paid only in emergencies or with prior authorization.
• The member typically pays a small fixed copay per visit and little or no deductible, making out-of-pocket costs predictable.
• Providers are commonly paid by capitation - a flat per-member-per-month amount regardless of services rendered.
• Cost-sharing is usually low flat copays rather than deductibles and coinsurance.

HMO models include staff, group, IPA (independent practice association), and network arrangements - tested as ways the HMO contracts with physicians.

In a staff model physicians are salaried employees practicing in HMO-owned facilities; in a group model the HMO contracts with one multispecialty group; in an IPA model the HMO contracts with independent physicians who keep their own offices and also see non-HMO patients. The key distinction examiners draw is the degree of integration: staff models are the most tightly controlled and lowest cost, while IPA models offer the broadest physician choice. HMOs must also be licensed in the state and meet minimum benefit and service-area requirements.

PPO and POS

• Preferred Provider Organization (PPO) - a network of providers who agree to discounted fees. Members may go out of network but pay higher cost-sharing. No PCP or referral is required, giving the most flexibility. Providers are paid fee-for-service at negotiated (discounted) rates.
• Point-of-Service (POS) - a hybrid. It uses a PCP gatekeeper like an HMO for in-network care but allows out-of-network care like a PPO at higher cost. Think "HMO with an out-of-network escape hatch."

Common Trap

The distinguishing question is usually about referrals and out-of-network access. HMO = gatekeeper + in-network only. PPO = no gatekeeper + out-of-network allowed. POS = gatekeeper + out-of-network allowed.

A second tested distinction is cost predictability versus flexibility. The HMO offers the lowest and most predictable out-of-pocket cost but the least freedom; the PPO offers the most freedom but exposes the member to deductibles, coinsurance, and balance billing out of network. The POS lets a member who values an HMO's low in-network copays keep the option to step outside the network for a specific specialist by accepting higher cost-sharing. An Exclusive Provider Organization (EPO) sometimes appears as a distractor: it is PPO-like with no gatekeeper but, like an HMO, provides no out-of-network coverage except emergencies.

HSA Paired With an HDHP

A Health Savings Account (HSA) is a tax-advantaged account a person may fund only if covered by a qualifying high-deductible health plan (HDHP) and not covered by other disqualifying coverage (including Medicare).

• Triple tax advantage: contributions are tax-deductible, growth is tax-deferred, and qualified medical withdrawals are tax-free.
• HDHP requirement: the plan must meet IRS minimum-deductible and maximum-out-of-pocket thresholds set annually. Preventive care may be covered before the deductible.
• Portability: the HSA belongs to the individual and rolls over year to year - unlike an FSA's use-it-or-lose-it rule.
• Non-qualified withdrawals before age 65 are taxed as income plus a 20% penalty; after 65 the penalty disappears but income tax applies to non-medical use.

Worked Numeric: HSA Tax Treatment

A self-employed individual in the 24% bracket contributes $4,000 to an HSA. The deduction saves $4,000 x 24% = $960 in federal income tax. If she later withdraws $1,500 for qualified medical bills, that withdrawal is tax-free. If instead she withdraws $1,500 at age 50 for a vacation, she owes income tax (24% = $360) plus a 20% penalty ($300) = $660 in tax and penalty.

Distinguish the HSA from an FSA (employer-owned, use-it-or-lose-it, no HDHP requirement) and an HRA (employer-funded reimbursement arrangement).

The most common HSA trap is eligibility. A person enrolled in Medicare, claimed as a dependent on someone else's return, or covered by a non-HDHP plan (including a spouse's traditional plan or a general-purpose FSA) cannot contribute. Annual contribution limits are set by the IRS and are higher for family coverage, with an additional catch-up amount allowed at age 55 and older. Because unused balances roll over and the account is portable when the owner changes jobs, the HSA also functions as a long-term, tax-advantaged savings vehicle for future medical costs in retirement.

HSA Rules, HDHP Pairing, and the Four-Model Contrast

A Health Savings Account (HSA) must be paired with a qualifying High-Deductible Health Plan (HDHP). Contributions are tax-deductible, growth is tax-deferred, and withdrawals for qualified medical expenses are tax-free - a triple tax advantage. Funds roll over year to year (no "use-it-or-lose-it") and are portable if the owner changes jobs, unlike a Flexible Spending Account (FSA).

Comparing Managed-Care Models

Worked HSA trap: a non-qualified HSA withdrawal before age 65 is taxable plus a 20% penalty; after age 65 it is taxable but penalty-free even for non-medical use (functioning like an IRA). You cannot open an HSA if you are enrolled in Medicare or claimed as a dependent. Examiners pair the HDHP's high deductible with the HSA's tax-free medical withdrawals to test the linkage between the two.