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

What Managed Care Does

Managed care integrates the financing and delivery of health care to control cost and quality. Instead of reimbursing any provider after the fact, managed care plans contract with networks of providers, negotiate fees, and use utilization controls. The three main models — HMO, PPO, and POS — differ in network rigidity, gatekeeping, and out-of-network benefits.

Health Maintenance Organization (HMO)

The HMO is the most restrictive and the most prevention-focused model. Key features:

• Prepaid care — members pay a fixed premium and small copays rather than per-service charges.
• Primary Care Physician (PCP) gatekeeper — members select a PCP who coordinates care and issues referrals to specialists.
• In-network only — except for emergencies, out-of-network care is generally not covered.
• Capitation — the HMO pays providers a fixed amount per member per month regardless of services used, shifting utilization risk to providers.
• Emphasis on preventive care — routine screenings and wellness are covered to reduce later claims.

Key Point: In an HMO, going out of network without a referral usually means the member pays the full cost. The PCP gatekeeper is the defining HMO feature.

Preferred Provider Organization (PPO)

A PPO contracts with preferred providers who accept negotiated (discounted) fees. Unlike an HMO:

• There is no gatekeeper — members may self-refer to specialists.
• Out-of-network care is covered, but at a reduced benefit level (higher deductible and coinsurance).
• Providers are paid on a fee-for-service basis at negotiated rates, not capitation.

PPOs trade higher premiums for greater flexibility.

Point-of-Service (POS) Plan

A POS plan is a hybrid of HMO and PPO. The member chooses, at the point of service, whether to use the network or go outside it:

• Uses a PCP gatekeeper like an HMO for in-network care (lowest cost).
• Allows out-of-network care like a PPO, but with higher cost sharing.

High-Deductible Health Plans and HSAs

A Health Savings Account (HSA) is a tax-advantaged account that must be paired with a qualifying High-Deductible Health Plan (HDHP). The HDHP carries a higher deductible and lower premium; the HSA lets the insured save pre-tax dollars to pay the deductible and qualified medical expenses.

HSA Tax Advantage (Triple Tax-Free)

• Contributions are tax-deductible (or pre-tax through payroll).
• Earnings grow tax-deferred.
• Withdrawals for qualified medical expenses are tax-free.

Non-qualified withdrawals before age 65 are taxed as income plus a 20% penalty. After age 65, non-qualified withdrawals are taxed as income with no penalty (similar to an IRA). HSA funds roll over year to year and are owned by the individual, unlike a use-it-or-lose-it FSA.

HDHP Qualification Thresholds (Illustrative)

Exact figures are indexed annually by the IRS; the exam tests the concept that an HDHP must meet a minimum deductible and a maximum out-of-pocket to be HSA-qualified.

Key Point: No HSA contributions are allowed for anyone enrolled in Medicare. The HSA must be linked to an HDHP, and the account holder cannot have other disqualifying first-dollar coverage.

The Four Managed-Care Models Side by Side

HMOs emphasize prepaid care and capitation (the provider is paid a flat per-member-per-month amount regardless of services), creating an incentive to keep members well. PPOs pay providers on a discounted fee-for-service basis and let members self-refer to specialists.

HSA and HDHP Mechanics

A Health Savings Account must be paired with a qualifying high-deductible health plan (HDHP). The HDHP carries higher deductibles and lower premiums; the HSA holds tax-deductible contributions that grow tax-deferred and come out tax-free for qualified medical expenses. Contributions are capped annually by the IRS, with a catch-up for those 55 and older, and the account is fully portable - it stays with the individual, not the employer.

HMO Core Features and Service Areas

An HMO combines the financing and delivery of care into one organization and operates within a defined service area; members outside it are covered only for emergencies. Members select a primary care physician (PCP) who acts as gatekeeper, coordinating care and authorizing specialist referrals. HMOs stress preventive care with low copays because keeping members healthy directly lowers the plan's prepaid costs. Common HMO structures include the staff model (physicians are salaried employees), the group model, the IPA model (contracts with independent practice associations), and the network model.

Worked Numeric: HDHP/HSA Triple Tax Advantage

Consider an HDHP with a $3,000 deductible paired with an HSA. An employee contributes $3,000 pre-tax: that contribution is deductible (reducing taxable income), grows tax-deferred, and is withdrawn tax-free for qualified medical expenses - the so-called triple tax advantage. If the same employee instead spends HSA funds on a non-qualified expense before age 65, the withdrawal is taxable plus a 20% penalty; after 65, non-qualified withdrawals are taxable but penalty-free, like a traditional IRA. The account is portable and owned by the individual, unlike an employer-owned HRA.