Medicare Advantage: A Quick Refresher
Medicare Advantage (Part C) plans are offered by private insurers approved by Medicare. They must cover everything Original Medicare covers, and most include added benefits like prescription drugs, dental, vision, and hearing. Within Medicare Advantage, there are several plan types — but HMOs and PPOs are by far the most common.
What Is an HMO (Health Maintenance Organization)?
An HMO requires you to use a network of doctors, specialists, and hospitals chosen by the plan. Key characteristics include:
- You must select a primary care physician (PCP) who coordinates your care
- Referrals from your PCP are typically required to see a specialist
- Out-of-network care is generally not covered except in emergencies
- HMOs tend to have lower premiums and out-of-pocket costs than PPOs
HMOs work best for people who prefer lower costs, have doctors already in-network, and don't mind coordinating care through a primary physician.
What Is a PPO (Preferred Provider Organization)?
A PPO gives you more flexibility in choosing providers. Key characteristics include:
- You can see any Medicare-accepting doctor — in-network or out-of-network
- No referral required to see specialists
- Out-of-network care is covered but at a higher cost to you
- PPOs typically have higher premiums than HMOs but offer more freedom
PPOs are ideal for people who travel frequently, have established relationships with out-of-network specialists, or simply want maximum provider flexibility.
HMO vs. PPO: Side-by-Side Comparison
| Feature | HMO | PPO |
|---|---|---|
| Primary care physician required | Yes | No |
| Referrals needed for specialists | Usually yes | No |
| Out-of-network coverage | Emergency only | Yes (higher cost) |
| Monthly premiums | Generally lower | Generally higher |
| Copays/coinsurance | Lower in-network | Varies |
| Best for | Cost-conscious, local care | Flexibility seekers, travelers |
Other Medicare Advantage Plan Types
Beyond HMOs and PPOs, Medicare Advantage also includes:
- HMO-POS (Point of Service): An HMO that allows limited out-of-network coverage at higher cost
- PFFS (Private Fee-for-Service): You can see any provider who agrees to the plan's payment terms — no set network
- SNP (Special Needs Plans): Tailored for people with specific chronic conditions, dual Medicare-Medicaid eligibility, or institutional care needs
- MSA (Medical Savings Account): Combines a high-deductible plan with a savings account you can use for healthcare expenses
How to Choose Between HMO and PPO
Ask yourself these questions:
- Are my current doctors in-network? Check the plan's directory before enrolling.
- Do I travel often or live in multiple states? A PPO offers better coverage flexibility.
- Is cost my top priority? HMOs typically have lower premiums and copays.
- Do I see multiple specialists regularly? A PPO removes the referral requirement.
- How important is coordinated care? An HMO's care coordination model may benefit people with complex or chronic conditions.
Final Tip
Regardless of plan type, always review the Evidence of Coverage (EOC) document before enrolling. This outlines exactly what the plan covers, your cost-sharing responsibilities, and provider network rules. Plans can and do change annually, so re-evaluate your options each Open Enrollment Period (October 15 – December 7).