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

What "Managed Care" Means

Managed care plans control cost and quality by integrating the financing and delivery of care—contracting directly with networks of providers and steering members to them. Traditional indemnity (fee-for-service) insurance simply reimbursed any provider after the fact; managed care instead emphasizes prevention, networks, and utilization review. The five pillars of HMOs—preventive care, limited service area, limited provider choice, copayment cost-sharing, and an emphasis on wellness—appear frequently on the exam.

HMO, PPO, and POS Compared

The three managed-care models differ in network rules, the role of a gatekeeper, and out-of-network coverage:

The POS plan is the hybrid: it acts like an HMO when you stay in-network through your PCP and like a PPO when you self-refer out-of-network at higher cost.

HMO Provider Models

HMOs organize physicians in different ways, and the exam may ask you to identify them:

• Staff model — physicians are salaried employees of the HMO, practicing in HMO-owned facilities.
• Group model — the HMO contracts with one multispecialty physician group, often paid by capitation (a fixed amount per member per month regardless of services used).
• IPA (Independent Practice Association) — the HMO contracts with an association of independent physicians who keep their own offices and also see non-HMO patients.
• Network model — contracts with multiple groups.

Capitation is the key cost-control payment method: it pays providers a flat per-member amount, shifting utilization risk to the provider.

Consumer-Directed Plans: HDHP + HSA

A High-Deductible Health Plan (HDHP) pairs a lower premium with a high deductible and is the gateway to a tax-favored Health Savings Account (HSA). For an HSA, the plan must be a qualified HDHP, and the insured may not be covered by other disqualifying coverage or be enrolled in Medicare.

HSA contributions are tax-deductible (above-the-line), grow tax-deferred, and come out tax-free when used for qualified medical expenses—a triple tax advantage. Funds roll over year to year (no "use it or lose it") and the account is portable—owned by the individual, not the employer. Non-qualified withdrawals before age 65 incur income tax plus a 20% penalty; after 65 the penalty disappears (income tax still applies if not for medical care).

Comparing Tax-Favored Accounts

The exam contrasts HSAs with FSAs and HRAs:

A classic trap: only the HSA rolls over fully and is portable. The FSA is generally use-it-or-lose-it (with a small carryover or grace period at the employer's option). HRAs are employer-funded only—employees cannot contribute.

HMO Statutory Features and Service Area

HMOs are organized under HMO enabling acts and have characteristics the exam tests verbatim. An HMO provides comprehensive care to members within a defined geographic service area for a fixed prepaid premium, emphasizing preventive care. Members generally must use network providers; care obtained outside the network or service area is covered only for true emergencies. Routine out-of-network care is the member's responsibility.

Because the HMO both finances and delivers care, it accepts the financial risk of providing all needed services for the prepaid fee. This is why HMOs invest heavily in wellness and screening—catching disease early is cheaper than treating it late. Expect a question contrasting an HMO's prepaid, network-bound model with traditional fee-for-service reimbursement.

HSA Contribution Mechanics

The IRS sets annual HSA contribution limits that differ for self-only and family HDHP coverage, with an additional catch-up contribution allowed for accountholders age 55 and older. Contributions may come from the individual, the employer, or both, but the combined total cannot exceed the annual limit. Employer contributions are excluded from the employee's taxable income.

To contribute, the individual must be covered by a qualifying HDHP and must not be enrolled in Medicare, claimed as another person's dependent, or covered by disqualifying first-dollar coverage (such as a general-purpose FSA). Once a person enrolls in Medicare, new HSA contributions must stop, although existing balances remain available tax-free for qualified expenses. The triple tax advantage plus portability makes the HSA a favored long-term savings vehicle.

HMO vs. PPO vs. POS — The Network Decision Tree

Managed-care plans control cost by steering members to contracted networks; the exam tests their differences side by side:

An HMO emphasizes prepaid, preventive care and pays providers by capitation (a flat per-member-per-month fee). A PPO pays contracted providers a discounted fee-for-service and lets members go out of network at higher cost. A POS is a hybrid: members choose in- or out-of-network at the point of service.

Consumer-Directed Plans — HSA Mechanics

A Health Savings Account (HSA) must be paired with a qualified High-Deductible Health Plan (HDHP). Contributions are tax-deductible, grow tax-deferred, and qualified medical withdrawals are tax-free (triple tax advantage). The 2026 HSA contribution limits are roughly $4,400 individual / $8,750 family, plus a $1,000 age-55 catch-up. Non-medical withdrawals before 65 incur income tax plus a 20% penalty; after 65 the penalty drops (income tax still applies).

Worked HDHP/HSA Example

An employee enrolls in an HDHP with a $3,000 deductible and funds an HSA with $3,000 pre-tax. A $2,200 covered medical bill is paid from the HSA tax-free, reducing the employee's effective cost by their marginal tax rate. The remaining $800 rolls over (HSAs have no use-it-or-lose-it rule, unlike an FSA). The exam contrasts the HSA (portable, rolls over, requires HDHP) with the FSA (employer-owned, forfeiture/grace rules) and the older HRA (employer-funded, employer-owned).