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

What Managed Care Is

Managed care controls cost and quality by integrating the financing and delivery of care. Instead of reimbursing any provider after the fact, managed-care plans contract with networks, emphasize prevention, and steer members to cost-effective care. The four delivery models tested on the exam are the HMO, PPO, POS, and the consumer-driven HSA/HDHP combination.

Five cost-control hallmarks recur across these models:

• Controlled access to providers (networks, gatekeepers).
• Prepaid or capitated payment rather than pure fee-for-service.
• Preventive care emphasis (free wellness visits).
• Risk sharing with providers.
• Utilization review (pre-certification, concurrent and retrospective review).

Health Maintenance Organizations (HMOs)

An HMO delivers comprehensive prepaid care through a defined network for a fixed periodic fee. Hallmarks:

• Members select a Primary Care Physician (PCP) who acts as the gatekeeper; specialist visits require a referral.
• Strong preventive care focus (the name says it — maintaining health).
• Capitation — the HMO pays network physicians a fixed amount per member per month regardless of services used, shifting risk to providers.
• No coverage out of network except true emergencies.
• Low or no deductible; small copays.

HMO organizational models: Staff (physicians are salaried employees), Group (HMO contracts with one multi-specialty group), IPA (Independent Practice Association — contracts with independent physicians who keep private patients), and Network (contracts with multiple groups).

Federally qualified HMOs (under the HMO Act of 1973) must offer an open-enrollment period and community rating (a uniform rate for the geographic community rather than experience rating each group). A defining trait is that the HMO both finances and delivers care — it is provider and insurer combined — which is why it can emphasize prevention so aggressively: keeping members healthy directly lowers its own delivery costs.

PPO and POS Plans

A PPO is a network of providers who agree to discounted fees. Members may go out of network but pay more (higher coinsurance/deductible). No gatekeeper is required.

A Point-of-Service (POS) plan is a hybrid: it uses an HMO-style PCP/gatekeeper for the lowest cost in network, but lets the member go out of network (at the 'point of service') with reduced benefits — combining HMO economy with PPO flexibility.

An EPO (Exclusive Provider Organization) is a fourth variant to recognize: like a PPO it has no gatekeeper, but like an HMO it covers no out-of-network care except emergencies. Ranking the models by member freedom (most to least): PPO, then POS/EPO, then HMO. Ranking by typical cost to the member (lowest to highest): HMO, then POS/EPO, then PPO. The exam loves to test these trade-offs: more freedom to choose providers correlates with higher cost-sharing and premium.

HSA + HDHP (Consumer-Driven Health Plans)

A High-Deductible Health Plan (HDHP) paired with a Health Savings Account (HSA) lets the insured pay routine costs from a tax-advantaged account while the HDHP covers catastrophic costs. To qualify, the HDHP must meet IRS minimum deductible and maximum out-of-pocket thresholds (indexed annually).

HSA tax features — the exam's favorite triple-tax-advantage points:

• Contributions are tax-deductible (or pre-tax through payroll).
• Earnings grow tax-deferred.
• Qualified medical withdrawals are tax-free.

The account is owned by the individual and portable (it follows the person, unlike an employer FSA). Unused balances roll over year to year. Non-qualified withdrawals before age 65 are taxed and hit with a 20% penalty; after age 65 they are taxed as ordinary income with no penalty (like an IRA).

HSA vs. FSA vs. HRA — Don't Confuse Them

• HSA — individual-owned, requires an HDHP, portable, balances roll over, triple tax advantage.
• FSA (Flexible Spending Account) — employer-sponsored, use-it-or-lose-it (with limited carryover/grace options), not portable, no HDHP requirement.
• HRA (Health Reimbursement Arrangement) — employer-funded only, employer owns the funds, reimburses qualified expenses; employees cannot contribute.

Worked example: An individual under an HDHP contributes the annual maximum to an HSA and incurs $1,200 in qualified expenses. Those $1,200 of withdrawals are tax-free, and the contribution reduced taxable income. If that same person withdrew $1,200 for a non-medical expense at age 40, they would owe income tax on $1,200 plus a $240 (20%) penalty.

Consumer-driven plans shift purchasing decisions and dollars to the member, on the theory that people who spend their own money shop more carefully. The HDHP keeps premiums low because the member absorbs first-dollar routine costs, while catastrophic protection remains intact through the high deductible and the out-of-pocket maximum required for the plan to qualify.

Eligibility traps: a person cannot contribute to an HSA once enrolled in Medicare, and generally cannot if covered by a non-HDHP plan or claimed as another's dependent. An MSA (Archer Medical Savings Account) is the older, largely closed predecessor to the HSA — recognize it as a self-employed/small-employer HDHP-paired account. Qualified medical expenses for tax-free withdrawal follow IRS rules and include most deductibles, copays, dental and vision care, but not premiums except in narrow cases (e.g., COBRA, long-term care, Medicare for those 65+).