HMO, PPO, POS, EPO, HDHP: An Opinionated Guide
The Menu You Did Not Ask For
Every open enrollment, HR teams sit down with a broker and get handed the same set of options: HMO, PPO, POS, EPO, HDHP. The conversation feels like a choice. It is not. It is five variations of the same extractive model, each with a different trade-off between cost and freedom.
Understanding what each one does matters. But understanding what none of them fix matters more.
HMO: Health Maintenance Organization
How it works: You pick a primary care physician. That PCP is the gatekeeper. You need a referral to see any specialist. You stay in-network or you pay everything out of pocket.
Strengths:
- Lowest premiums of any traditional plan type. For employers watching their budget, this is the cheapest door in.
- The gatekeeper model actually encourages primary care use. People with HMOs tend to have a doctor they know, and that relationship has real clinical value.
- Predictable costs. Copays are flat. Surprise bills are less common because out-of-network care simply is not covered.
Weaknesses:
- The referral requirement is a bottleneck. Your employee knows they need to see a dermatologist. Their PCP agrees. But the system still requires a visit, a referral, and a wait. This is not coordination — it is a toll booth.
- Network restrictions punish people who travel, move, or live in rural areas.
- Carriers love HMOs because the gatekeeper model suppresses utilization. Fewer referrals mean fewer claims. Good for the carrier’s margin, not always good for the patient.
Our take: HMOs get one thing right: primary care should be the center of healthcare. But the referral gatekeeping serves cost control, not quality. If you want primary-care-centered medicine without the bureaucratic chokehold, Direct Primary Care does what HMOs promise and actually delivers it.
PPO: Preferred Provider Organization
How it works: No gatekeeper. No referrals. You can see any provider, in-network or out. In-network costs less. Out-of-network costs more but is still partially covered.
Strengths:
- Maximum flexibility. Employees pick their own specialists, hospitals, and providers without asking permission.
- Out-of-network coverage means fewer billing nightmares when someone ends up at a non-network ER or sees a specialist their PCP did not choose.
- Employees love PPOs. In surveys, it is consistently the most popular plan type.
Weaknesses:
- The most expensive option. Premiums run 20–30% higher than HMOs. Employers pay more. Employees pay more. Everyone pays more for the privilege of freedom.
- No care coordination. Nobody is quarterbacking your health. You bounce between specialists with no one connecting the dots.
- The “freedom” is partially an illusion. Carriers negotiate network rates that are still inflated. Out-of-network charges are subject to “usual and customary” calculations that almost always favor the insurer.
- PPOs generate outsized revenue for carriers. According to KFF, the average annual premium for employer-sponsored family coverage reached $25,572 in 2024 — and PPOs sit at the top of that range. High premiums, loose utilization controls, and massive networks give the carrier negotiating leverage over providers while collecting from both sides.
Our take: PPOs are popular because the alternative feels like a cage. But that popularity masks the cost. Employers pay a 20–30% premium surcharge so their employees can avoid a referral form. The real problem is not that PPOs cost too much — it is that the “affordable” options feel too restrictive to use.
POS: Point of Service
How it works: A hybrid. You have a PCP like an HMO. You need referrals for in-network specialists. But like a PPO, you can go out-of-network and still get partial coverage.
Strengths:
- Combines the primary-care focus of an HMO with the out-of-network safety valve of a PPO.
- Lower premiums than a PPO but more flexibility than an HMO.
- The out-of-network option provides peace of mind for employees in areas with thin networks.
Weaknesses:
- Confusing. Most employees do not understand how POS plans work — when they need a referral, when they do not, what counts as out-of-network. Confusion leads to mistakes, and mistakes lead to denied claims and unexpected bills.
- Still has the referral bottleneck for in-network specialist care.
- The out-of-network “coverage” comes with high deductibles and coinsurance that makes it expensive in practice. The safety valve exists, but pulling it costs real money.
- Carriers are not widely offering POS plans anymore. Availability is shrinking, which limits your negotiating leverage.
Our take: POS plans are the compromise that satisfies nobody. Too complicated for employees. Too restrictive for people who want PPO-style freedom. Too expensive for employers who want HMO-style savings. If you find yourself drawn to a POS plan, ask why. Usually it is because the HMO network is too narrow and the PPO is too expensive. The plan is not the problem. The carrier is.
EPO: Exclusive Provider Organization
How it works: Like a PPO without the out-of-network coverage. No referrals needed. See any in-network provider you want. But go out-of-network and you pay 100% of the bill. Emergency care is the exception.
Strengths:
- Lower premiums than a PPO because the carrier eliminates out-of-network cost exposure.
- No referral requirements. Employees can self-refer to specialists within the network.
- Simpler than a POS plan. The rules are clear: stay in network and you are covered; go out and you are not.
Weaknesses:
- Zero out-of-network coverage is a real risk. If your employee is traveling and needs non-emergency care, they are entirely on their own.
- Network adequacy matters enormously. If the EPO network is thin in your area, your employees are trapped.
- The carrier has even more leverage over providers in an EPO because there is no out-of-network escape valve. This can lead to narrower networks over time as providers push back on low reimbursement rates.
Our take: EPOs are honest about their trade-off. You give up out-of-network access; you get lower premiums. Fine. But notice where the risk lands. The carrier saves money on every out-of-network claim they never pay. Your employee absorbs 100% of the cost when the network fails them. The risk is not shared. It is transferred — entirely to the person who can least afford it.
HDHP: High-Deductible Health Plan
How it works: A plan with a higher deductible and lower premiums, paired with a Health Savings Account (HSA). In 2025, the IRS defines an HDHP as having a deductible of at least $1,650 for individuals or $3,300 for families. Employees pay more out of pocket before insurance kicks in, but they can save pre-tax dollars in an HSA to cover those costs.
Strengths:
- Lowest premiums available, often significantly cheaper than traditional plans for both employer and employee.
- HSAs are a genuine financial tool. Contributions are pre-tax, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. Triple tax advantage — rare in the tax code.
- HSA funds roll over year to year and are portable. Employees keep them even if they leave the company. For younger, healthier employees, an HDHP with an HSA can be a wealth-building vehicle.
- Employers can contribute to employee HSAs, offsetting the higher deductible while still spending less than they would on a richer plan.
Weaknesses:
- High deductibles discourage utilization — and not just unnecessary utilization. Studies, including RAND’s landmark research, consistently show that people on high-deductible plans delay or skip care they actually need, including preventive services, medications, and chronic disease management.
- The financial exposure falls hardest on lower-income employees. A $3,300 family deductible is manageable on a six-figure salary. On $45,000 a year, it can mean choosing between a doctor visit and rent.
- HSAs only help if employees have enough disposable income to fund them. Many do not. The tax advantages disproportionately benefit higher earners who can afford to max out contributions and invest the balance.
- The “consumerism” theory — that higher out-of-pocket costs make people smarter healthcare shoppers — breaks down in practice. Healthcare prices are opaque, quality data is scarce, and nobody comparison-shops during a medical emergency.
Our take: HDHPs with HSAs are a reasonable option for some employees — particularly those who are younger, healthy, and earning enough to fund the account. But offering an HDHP as the only option, or as a cost-shifting strategy disguised as “empowerment,” is a different story. When the deductible is so high that employees avoid the doctor, you have not given them a health plan. You have given them an insurance card they are afraid to use.
The Real Problem None of These Solve
The choice between HMO, PPO, POS, EPO, and HDHP is a distraction. All five are variations of the same fully insured model where a carrier collects your premiums, decides what to pay, and keeps the difference.
The real questions are:
Who holds the money? In every plan type above, the carrier does. They invest your premiums, earn returns on the float, and pay claims on their timeline. In a self-funded or level-funded model, you hold the money. Unspent premiums come back to you instead of padding a carrier’s quarterly earnings.
Who benefits when claims are low? In a fully insured plan, the carrier does — every dollar not spent on care is a dollar they keep. In a self-funded arrangement, low claims mean lower costs for you. Your incentives finally align with keeping your people healthy rather than just keeping them insured.
Who controls the network? In every plan type above, the carrier does. They decide which providers are in, what rates they pay, and how narrow the network gets. With Direct Primary Care and reference-based pricing, you bypass the carrier’s network entirely and negotiate directly for the care your employees actually use.
The acronym on your plan card does not determine whether your employees get good care at a fair price. The structure underneath it does.
Self-funded and level-funded plans let employers of almost any size take back that structure. Level-funding, in particular, gives smaller employers the predictability of a fully insured premium with the transparency and upside of self-funding. You pay a fixed monthly amount. If claims come in under that amount, you get money back. If they exceed it, stop-loss insurance caps your exposure. You get the best of both models without the risk that keeps most small employers locked into the fully insured world.
Stop debating HMO vs. PPO. Start asking whether the model itself is working for you — and whether a different structure could work better.