Nearly 2 in 3 Medicare Advantage enrollees choose a Preferred Provider Organization (PPO) plan, but depending on where you live and how you prefer to access care, a Health Maintenance Organization (HMO) plan might be the smarter financial and medical fit. When you begin reviewing your coverage options, the choice between an HMO and a PPO quickly becomes your most consequential decision.
Both plan types bundle Medicare Part A (hospital insurance), Part B (medical insurance), and usually Part D (prescription drug coverage) into a single plan. However, they differ fundamentally in how they structure doctor networks, manage specialist care, and set out-of-pocket costs.
This guide uses our enrollment and plan data for Medicare Advantage plans enrolled through SmartMatch from 2022 to 2026 to break down HMO vs. PPO Medicare Advantage plans. Learn how HMOs and PPOs work, how they compare side by side, and how to determine which option aligns best with your health needs and budget.
Key Takeaways of HMO vs. PPO
- HMOs require staying in-network and getting primary care referrals for specialists, offering lower premiums and copays. PPOs cover out-of-network providers and allow direct specialist access, but generally carry higher out-of-pocket costs.
- While 64% of Medicare Advantage enrollees select a PPO overall, local carrier offerings heavily influence real-world availability — for example, ranging from 78% HMO selection in California to 90% PPO selection in Michigan.
- According to CMS Plan Crosswalk data, HMOs are 1.5x less likely to face plan terminations or service area reductions than PPOs. In 2026, 30.6% of PPO plans experienced negative disruption compared to 20.4% of HMO plans.
- When D-SNPs and C-SNPs (Medicaid-Medicare dual-eligible plans and chronic condition special needs plans) are factored in, 60% of all Medicare Advantage policies are built on an HMO structure, making HMOs the predominant choice for dual-eligible beneficiaries.
HMO vs. PPO: Side-by-Side Comparison
Understanding the structural differences between HMO and PPO plans helps clarify which plan type offers the ideal balance of cost control and doctor choice.
| HMO Plans | PPO Plans | |
| Monthly premiums | Usually lower; wide availability of $0 premium options | Usually higher than HMO premiums |
| Out-of-pocket maximums | Lower copays and coinsurance for in-network care | Higher copays and coinsurance, especially for out-of-network care |
| Network coverage | Strict; must use in-network doctors (except emergencies) | Flexible; covers both in-network and out-of-network care |
| Specialist referrals | Generally required from your primary care doctor | Never required; see specialists directly |
| Primary care providers (PCPs) | Required to select a designated physician | Optional; recommended but not required |
| Out-of-area care | Limited to emergency and urgent care | Covered nationwide (at out-of-network cost rates) |
| Plan Stability (2022–2026) | Higher stability; 62% of plans renew unchanged; 20% disruption rate | Lower stability; 56% of plans renew unchanged; 31% disruption rate |
| Best Suited For | Cost-conscious enrollees who rely on local healthcare providers | Enrollees seeking direct specialist access or travel flexibility |
A Health Maintenance Organization (HMO) is a network-based Medicare Advantage plan structure designed around coordinated local healthcare. When you enroll in an HMO, you are required to select a primary care physician (PCP) from the plan’s network. Your PCP serves as your main point of contact for healthcare services, managing routine checkups, preventative care, and referrals to specialists.
Except in emergency situations, urgent care out of your area, or temporary end-stage renal disease dialysis, all care under an HMO must be received from in-network providers. If you choose to see an out-of-network provider for non-emergency care, your plan will generally not cover the service, leaving you responsible for 100% of the bill.
Because HMOs use tight networks and managed care, insurance carriers can keep plan expenses lower. Consequently, many $0-monthly-premium plans are built on the HMO framework. Before selecting one, it is helpful to weigh the tradeoffs of zero-premium Medicare Advantage plans to understand how network rules offset lower premiums. Furthermore, HMO plans frequently require referrals to see specialists and prior approvals for specific tests or procedures. You can review Medicare Advantage prior authorization requirements to learn how these permissions work.
SmartMatch data insight: According to our internal enrollment data, Humana is the most popular HMO carrier for our customers, accounting for 45% of all HMO enrollments brokered through SmartMatch, followed by Cigna at 15% and UnitedHealthcare at 12%.
A Preferred Provider Organization (PPO) is a Medicare Advantage plan structure built for maximum provider flexibility. Unlike an HMO, a PPO gives you the freedom to receive medical care from virtually any licensed doctor or hospital, regardless of whether they belong to the plan’s preferred network.
While you have out-of-network coverage on a PPO, staying in-network keeps your copayments and coinsurance significantly lower. Going out-of-network means you will pay a higher share of the cost out of pocket. PPO plans do not require you to choose a primary care physician, nor do they require referrals to see specialists. You can book an appointment directly with an orthopedic doctor, cardiologist, or dermatologist without waiting for PCP clearance.
This added freedom makes PPOs particularly attractive for seniors who travel frequently or split their living arrangements across different states. If travel is a priority for you, explore our guide on traveling with a Medicare Advantage plan to understand how out-of-area coverage operates. However, flexibility comes with higher monthly premiums and higher out-of-pocket spending limits than standard HMOs.
Pros and cons of HMO plans
Every Medicare Advantage plan structure requires trade-offs. Evaluating the advantages and limitations of each plan type ensures you choose coverage that aligns with your financial strategy and healthcare habits.
Pros of HMO Plans
- Lower overall costs: HMOs feature lower average monthly premiums, with many plans carrying a $0 monthly premium.
- Predictable copays: In-network services, doctor visits, and routine procedures usually come with modest, fixed copayments.
- Care coordination: Having a dedicated primary care physician ensures all medical records, tests, and treatments are centrally managed, reducing duplicated tests.
- Greater plan stability: HMO plans experience lower rates of carrier service area reductions and plan terminations year over year.
Cons of HMO Plans
- No out-of-network coverage: Seeing a doctor outside your plan network means paying the full cost out of pocket, except in true emergencies.
- Referral barriers: You must consult your PCP and receive a referral before seeing an in-network specialist.
- Geographic limitations: HMO networks are local, making them ill-suited for retirees who travel extensively or reside in multiple states throughout the year.
- Network changes: If your physician leaves the plan’s network, you must switch to another in-network doctor to maintain coverage.
Pros and cons of PPO plans
Pros of PPO Plans
- Provider freedom: You can see any doctor, specialist, or hospital in the country that accepts Medicare.
- Direct specialist access: No referrals are required to schedule visits with medical specialists.
- Travel flexibility: Out-of-network benefits protect you while traveling outside your primary residence area.
- Physician retention: You can often keep your trusted doctors even if they do not belong to the plan’s preferred network.
Cons of PPO Plans
- Higher cost threshold: Monthly premiums, deductibles, and out-of-pocket maximums are generally higher than HMO alternatives.
- Expensive out-of-network care: Coinsurance for out-of-network providers can reach 30% to 50% of the service cost.
- Less year-over-year stability: PPO plans face a higher frequency of plan terminations and service area cutbacks by carriers.
- Administrative overhead: Out-of-network providers may not bill your plan directly, requiring you to pay upfront and submit claims manually.
What our data shows: How Medicare enrollees actually choose
To understand how Medicare beneficiaries make plan choices in the real world, SmartMatch analyzed our Medicare Advantage applications. This dataset reveals distinct patterns in enrollee preferences, geographic variance, carrier market shares, and special enrollment behaviors.
PPOs are the most popular and still gaining
Over the multi-year dataset, 64% of Medicare Advantage applicants selected a PPO, while 36% selected an HMO. Consumer preference for PPOs grew steadily from 58% of enrollments in 2022 to a peak of 71% in 2024, before settling at 66% in 2025.
Plan switching accounts for a substantial portion of these choices. Our internal enrollment data from 2022-2026 shows that 42% of PPO enrollees and 38% of HMO enrollees switched from another Medicare Advantage plan during the Annual Enrollment Period (AEP) or Open Enrollment Period (OEP). First-time Medicare enrollees accounted for 4.1% of HMO selections and 4.2% of PPO selections.
Where you live heavily impacts the plan choices you have
According to SmartMatch’s internal enrollment data, while overall national trends favor PPOs, regional plan availability heavily dictates actual enrollment for our customers. In some states, insurance carriers offer dense HMO networks, whereas in rural or spread-out markets, PPO plans dominate.
| State | HMO Share | PPO Share | Market Dynamic |
| California | 78% | 22% | Heavy HMO dominance |
| Tennessee | 71% | 29% | Strong HMO market |
| Florida | 55% | 45% | Moderate HMO lean |
| Texas | 49% | 51% | Balanced split |
| Michigan | 10% | 90% | Massive PPO preference |
| Oklahoma | 13% | 87% | Massive PPO preference |
| North Dakota | 2% | 98% | Almost exclusive PPO market |
In states like Michigan, Oklahoma, and North Dakota, over 85% of enrollees choose PPOs due to broad geographic provider distribution. Conversely, densely populated markets like California and Florida offer robust HMO networks with competitive zero-premium benefits.
Special Needs Plans are mostly HMO-based
For beneficiaries eligible for both Medicare and Medicaid (dual-eligible), Special Enrollment Periods tied to extra assistance drive significant enrollment. SmartMatch data shows that 23% of HMO enrollees enter via Special Enrollment related to Medicaid or Low-Income Subsidy (LIS) programs.
When Chronic Condition and Dual-Eligible Special Needs Plans (D-SNPs) are factored into total policy counts, 60% of all Medicare Advantage policies are built on an HMO architecture. If you suffer from a qualifying health condition, reviewing Chronic Condition Special Needs Plans (C-SNPs) can clarify whether an HMO-based Special Needs Plan offers enhanced tailored benefits.
Plan stability: Which type is more likely to change?
When choosing between an HMO and a PPO, enrollees rarely evaluate long-term plan stability. Based on official CMS Plan Crosswalk data analyzed by SmartMatch from 2022 through 2026, Medicare Advantage plans experience significant annual volatility. However, negative plan disruptions impact PPO plans far more frequently than HMO plans.
Plan disruption is rising across all of Medicare Advantage
Driven by carrier market exits, regulatory adjustments, and medical cost trends, plan disruptions have accelerated industry-wide. Across all Medicare Advantage plan types combined, negative disruption (plan terminations and service area reductions) nearly quadrupled between 2022 and 2026.
| Year | Stable Renewals (No Changes) | Plan Terminations | Service Area Reductions | Total Negative Disruption |
| 2022 | 60.8% | 2.9% | 1.9% | 4.8% |
| 2023 | 53.5% | 3.7% | 2.5% | 6.2% |
| 2024 | 58.2% | 8.0% | 8.4% | 16.4% |
| 2026 | 55.9% | 11.2% | 8.1% | 19.3% |
In 2026, nearly 1 in 5 Medicare Advantage plans (19.3%) were either terminated by the carrier or had their service area reduced, leaving enrollees forced to select new coverage.
PPO plans face more disruption than HMOs
Comparing HMO and PPO crosswalk data reveals that PPO plans carry higher instability risk.
Key findings from this data include:
- PPOs carry 1.5x higher disruption risk: In 2026, 30.6% of PPO plans experienced negative disruption compared to 20.4% of HMO plans.
- PPO terminations have escalated: PPO plan terminations rose from 2.9% in 2022 to 16.8% in 2026 — a nearly 6-fold increase. HMO terminations rose from 3.8% to 12.0% over the same period.
- Service area reductions spike on PPOs: PPO service area cutbacks peaked at 18.4% in 2024 and remain high at 13.8% in 2026. HMO service area reductions stand at 8.4%.
- HMOs maintain higher consistency: HMO stable renewals have stayed between 61% and 69% every year. In contrast, PPO stable renewals dropped to 44.4% in 2023.
| Metric | 2022 | 2023 | 2024 | 2026 |
| HMO: Stable Renewal % | 68.8% | 60.9% | 64.1% | 61.9% |
| PPO: Stable Renewal % | 69.1% | 44.4% | 54.4% | 56.4% |
| HMO: Termination Rate | 3.8% | 5.1% | 8.7% | 12.0% |
| PPO: Termination Rate | 2.9% | 4.7% | 10.1% | 16.8% |
| HMO: Service Area Reduction % | 1.4% | 2.8% | 6.4% | 8.4% |
| PPO: Service Area Reduction % | 3.8% | 4.2% | 18.4% | 13.8% |
| HMO: Total Negative Disruption | 5.2% | 7.9% | 15.0% | 20.4% |
| PPO: Total Negative Disruption | 6.8% | 9.0% | 28.5% | 30.6% |
Understanding these figures underscores why reviewing your coverage during the Annual Enrollment Period is critical. For guidance on how to navigate plan modifications, read our detailed Medicare Advantage Open Enrollment guide.
Is an HMO or PPO right for you? A decision framework
Selecting between an HMO and a PPO comes down to your budget, doctor preferences, and travel habits. Ask yourself the following five diagnostic questions:
- Is keeping your monthly premium as low as possible your primary goal?
- If Yes: Lean toward an HMO. HMOs offer the largest selection of zero-premium options and lower copayments. Explore available zero-dollar premium Medicare plans in your area.
- If No: A PPO may be worth the extra monthly cost if flexibility is important to you.
- Do you have specific specialists or hospitals you must retain?
- If Yes: Verify if those medical providers are in-network. If they are out-of-network, a PPO allows you to see them while receiving partial benefit coverage. You can also review our resource on which hospitals accept Medicare Advantage.
- If No: An HMO network will provide a full roster of contracted local physicians.
- Do you travel frequently or live in another state part of the year?
- If Yes: Choose a PPO. PPO plans cover out-of-network care across the United States. HMO plans only cover routine care within their local service area.
- If No: An HMO provides all necessary local coverage.
- Do you dislike waiting for doctor referrals to see specialists?
- If Yes: Choose a PPO. PPO plans allow you to schedule appointments directly with specialists.
- If No: An HMO coordinated referral model works well and helps centralize your care records.
- Is long-term plan stability a top priority for you?
- If Yes: Lean toward an HMO. HMO plans have proven 1.5x more stable year-over-year than PPO plans, facing fewer terminations and service area cutbacks.
Both plan types often include valuable supplemental health allowances, including health and wellness programs like the SilverSneakers program overview and drug store allowances detailed in our over-the-counter (OTC) benefits guide.
FAQs about HMOs and PPOs
Can I switch between an HMO and a PPO plan?
Yes. You can switch between HMO and PPO plans during the Annual Enrollment Period (AEP) from October 15 through December 7, or during the Medicare Advantage Open Enrollment Period (OEP) from January 1 through March 31.
Is an HMO or PPO better for prescription drug coverage?
Both plan types typically include Medicare Part D prescription drug coverage. Drug formularies (lists of covered medications) and copay tiers are set by the individual plan rather than the network structure. Always verify that your specific medications are listed on the plan formulary before enrolling.
What happens if my doctor leaves my HMO network?
If your primary doctor leaves your HMO network, you must select another in-network primary care physician to continue receiving covered care. In some circumstances, losing access to your provider may trigger a Special Enrollment Period (SEP) to switch plans.
What is an HMO-POS plan?
An HMO Point-of-Service (HMO-POS) plan is a hybrid option. It operates like an HMO for primary care and routine visits but allows out-of-network access for select services at higher out-of-pocket costs. Learn more by reviewing our guide to understanding Medicare Advantage networks.
Which plan type is more stable year to year?
CMS crosswalk data shows that HMO plans are significantly more stable. In 2026, 61.9% of HMO plans renewed without changes compared to 56.4% of PPOs. PPO plans face 1.5x higher negative disruption through service area cutbacks and plan terminations.
For additional common questions regarding plan structures and benefits, browse our complete list of Medicare Advantage FAQs.
What to do about plan choices now
Now that you understand the key differences between HMO and PPO Medicare Advantage plans, you can take concrete steps toward securing your health coverage:
- Request an agent to reach out to help you compare plans in your zip code.
- Take the quick SmartMatch Medicare Plan Quiz to receive tailored plan recommendations.
- If you decide that network restrictions or annual plan changes are not right for you, consider comparing Medicare Advantage vs. Medicare Supplement plans, or explore United Medicare Advisors Medicare Supplement plans for predictable nationwide coverage.
- If you are ready to enroll, prepare your documentation using our new Medicare Advantage member checklist.
Disclaimer: The insights in this article are based on SmartMatch’s internal enrollment data from 2022-2026. This information is provided for educational purposes to illustrate broader Medicare Advantage trends and assist consumers in making informed decisions. It does not represent a complete or exhaustive picture of all Medicare Advantage plans, carriers, or ZIP codes nationwide. Plan availability, benefits, and costs vary by geographic location. To evaluate all coverage options tailored to your specific healthcare needs and location, work with a licensed insurance agent. SmartMatch is not affiliated with or endorsed by the federal Medicare program or any government agency.
