Medicare Open Enrollment 2026 Plan Changes: What to Expect and How to Compare
Medicare Open Enrollment 2026 plan changes can affect your monthly premium, drug costs, provider access, and out of pocket spending, even if you keep the same plan.
Contents
33 sections
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Quick refresher: what "open enrollment" lets you change
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Medicare Open Enrollment 2026 plan changes: what typically changes year to year
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1) Premiums, deductibles, and copays
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2) Prescription drug formularies and tiers
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3) Pharmacy networks
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4) Provider networks and prior authorization
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5) Extra benefits and benefit limits
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6) Star ratings and plan service quality
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What to do first: build your personal comparison file
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Decision rules: how to pick between Original Medicare and Medicare Advantage
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Rule A: If you want broad provider access, start with Original Medicare
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Rule B: If you prefer an all in one plan with a spending cap, compare Medicare Advantage
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Rule C: If you have specific doctors, let the network decide
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Rule D: If your medications are expensive, let the formulary decide
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Cost example: what this looks like with real numbers
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Scenario 1: Low use year
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Scenario 2: Moderate use year
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Scenario 3: High use year with a major event
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Comparison table: recognizable plan types and where they tend to fit
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How to compare plans step by step (a practical workflow)
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Step 1: Read your ANOC like a bill
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Step 2: Price your medications first
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Step 3: Confirm providers and hospitals
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Step 4: Estimate your year in care
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Step 5: Stress test with a "bad year" number
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Budgeting for Medicare costs: three sample monthly allocations
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Allocation A: Lean healthcare budget (example $250 per month)
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Allocation B: Balanced healthcare budget (example $450 per month)
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Allocation C: Higher use healthcare budget (example $750 per month)
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Common pitfalls that lead to higher costs
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Where to verify plan details and get help comparing
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Open enrollment checklist you can print
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Bottom line
Open Enrollment is the window when many people with Medicare can review and change coverage for the next year. Plans can update premiums, deductibles, copays, formularies, pharmacy networks, and which doctors and hospitals are in network. The best move is to compare your current plan against alternatives using your real medications and preferred providers, then choose the option that fits your budget and care needs.
Quick refresher: what “open enrollment” lets you change
People often use “Medicare open enrollment” to mean the Annual Election Period (AEP), typically October 15 to December 7, when you can make changes that generally take effect January 1. Depending on your situation, you may be able to:
- Switch from Original Medicare to a Medicare Advantage plan (Part C)
- Switch from Medicare Advantage back to Original Medicare
- Change from one Medicare Advantage plan to another
- Join, switch, or drop a Part D prescription drug plan
If you have Original Medicare and want help with cost sharing, Medigap (Medicare Supplement) rules are different from AEP. In many states, Medigap insurers can use medical underwriting outside certain protected windows. If you are considering Medigap, compare timing and eligibility rules carefully.
Medicare Open Enrollment 2026 plan changes: what typically changes year to year
Even without knowing your specific county, plan changes usually fall into a few predictable buckets. Use this list as your checklist when you receive your plan’s Annual Notice of Change (ANOC) and Evidence of Coverage (EOC).
1) Premiums, deductibles, and copays
Plans can adjust monthly premiums and cost sharing. A plan with a low premium can still be expensive if you use frequent specialist visits, outpatient procedures, or brand name medications. Focus on your total annual cost estimate, not just the premium.
2) Prescription drug formularies and tiers
Part D and Medicare Advantage Prescription Drug (MAPD) plans can:
- Move a drug to a different tier
- Add prior authorization or step therapy
- Change quantity limits
- Remove a drug or prefer a different alternative
One practical rule: if you take any high cost medications, verify each one by name, dose, and pharmacy before you re enroll.
3) Pharmacy networks
Plans often have “preferred” pharmacies with lower copays. If your regular pharmacy is no longer preferred, your costs can rise. Check whether mail order is available and whether it is actually cheaper for your prescriptions.
4) Provider networks and prior authorization
Medicare Advantage plans use provider networks. A hospital system or specialist group can leave a network, or a plan can tighten referral and prior authorization rules. If you have ongoing care, confirm:
- Your primary care doctor is in network
- Your key specialists are in network
- Your preferred hospital is in network
- Any planned procedures need prior authorization
5) Extra benefits and benefit limits
Some Medicare Advantage plans include extras like dental, vision, hearing, transportation, over the counter allowances, or fitness benefits. These can change year to year, and they often come with limits, networks, and authorization rules. Treat extras as a bonus, not the foundation of your decision.
6) Star ratings and plan service quality
CMS star ratings can change. Ratings are not a guarantee of your experience, but they can be a useful signal to compare customer service, medication adherence measures, and complaint patterns.
What to do first: build your personal comparison file
Before you compare plans, gather the details that drive your costs. This prevents you from choosing based on premium alone.
| Item to gather | Where to find it | Why it matters |
|---|---|---|
| List of medications (name, dose, frequency) | Prescription labels or pharmacy printout | Determines formulary coverage, tiers, and restrictions |
| Preferred pharmacies | Your current pharmacy and any backups | Preferred network status can change your copays |
| Doctors and hospitals you use | Appointment summaries or provider portals | Network participation affects access and cost |
| Expected care next year | Your calendar and care plan | Helps estimate visits, procedures, and therapy |
| Current plan ANOC and EOC | Mailing from your plan or online account | Shows what is changing and what rules apply |
Decision rules: how to pick between Original Medicare and Medicare Advantage
There is no single best choice for everyone. Use these decision rules to narrow your options.
Rule A: If you want broad provider access, start with Original Medicare
Original Medicare generally allows you to see any provider that accepts Medicare. Many people pair it with a Part D plan and consider Medigap for predictable cost sharing. This can be appealing if you travel often, live in more than one state, or want fewer network constraints.
Rule B: If you prefer an all in one plan with a spending cap, compare Medicare Advantage
Medicare Advantage plans typically include an annual out of pocket maximum for covered Part A and Part B services. Your costs can still vary based on copays, coinsurance, and network use, but the cap can help limit worst case exposure for covered services.
Rule C: If you have specific doctors, let the network decide
If your care depends on a particular specialist or hospital, check network status first. If they are not in network for a Medicare Advantage plan you are considering, that plan may not be a fit unless you are comfortable switching providers.
Rule D: If your medications are expensive, let the formulary decide
For high cost drugs, small formulary differences can outweigh premium differences. Confirm coverage, tier, restrictions, and pharmacy pricing.
Cost example: what this looks like with real numbers
Below are simplified scenarios to show how plan design can change your total annual spending. These are not quotes. Your actual costs depend on your county, plan rules, and medical use.
Scenario 1: Low use year
- Person: One primary care visit, one specialist visit, a few generic prescriptions
- Plan A (lower premium): $0 monthly premium, higher copays
- Plan B (higher premium): $60 monthly premium, lower copays
Rough math:
- Plan A premium: $0 x 12 = $0
- Plan A copays and drugs (example): $250 total
- Plan A total: about $250
- Plan B premium: $60 x 12 = $720
- Plan B copays and drugs (example): $120 total
- Plan B total: about $840
In a low use year, a higher premium plan can cost more overall even with better copays.
Scenario 2: Moderate use year
- Person: Monthly specialist visits, imaging, physical therapy, several prescriptions
Rough math:
- Plan A: $0 premium, but $35 specialist copay x 12 = $420, therapy copays $400, imaging coinsurance $500, drugs $600
- Plan A total: about $1,920
- Plan B: $60 premium x 12 = $720, specialist copay $15 x 12 = $180, therapy copays $250, imaging coinsurance $350, drugs $450
- Plan B total: about $1,950
Here, totals are close. This is where network fit and prior authorization rules can become the deciding factor.
Scenario 3: High use year with a major event
- Person: Hospital stay and outpatient follow up, plus ongoing prescriptions
In a high use year, the annual out of pocket maximum (for Medicare Advantage covered services) and cost sharing rules can dominate the decision. Compare the plan’s maximum, inpatient copays, skilled nursing copays, and specialist coinsurance. For Original Medicare, compare how Medigap could change your exposure and what it costs to maintain.
Comparison table: recognizable plan types and where they tend to fit
Availability varies by county. Use these as examples of what you might see while shopping, not as a recommendation.
| Option | Best fit | What to compare | Main drawback |
|---|---|---|---|
| Original Medicare + stand alone Part D | People who want broad provider choice | Part D formulary, pharmacy network, premiums, deductibles | No built in out of pocket maximum for Parts A and B |
| Original Medicare + Medigap + Part D | People who want more predictable cost sharing | Medigap premium, underwriting rules, Part D drug coverage | Higher monthly premiums, Medigap availability rules vary |
| Medicare Advantage HMO | People comfortable staying in network | Network doctors, referrals, copays, out of pocket maximum | Less flexibility for out of network care |
| Medicare Advantage PPO | People who want some out of network options | Out of network cost sharing, network breadth, maximum | Out of network care can be significantly more expensive |
| Special Needs Plan (SNP) | People who meet specific eligibility (chronic, institutional, dual) | Eligibility rules, care coordination, drug coverage, network | Limited to qualifying members and specific service areas |
How to compare plans step by step (a practical workflow)
Step 1: Read your ANOC like a bill
Circle changes in premium, deductible, copays, drug coverage, and network. If your plan is discontinuing or changing service area, you may need to pick a new plan.
Step 2: Price your medications first
For each plan you are considering, check:
- Is each drug covered?
- What tier is it on?
- Are there restrictions (prior authorization, step therapy, quantity limits)?
- What is the estimated cost at your preferred pharmacy?
Step 3: Confirm providers and hospitals
Use the plan’s provider directory and call the provider office to confirm they still accept the plan for the coming year. Directories can be outdated.
Step 4: Estimate your year in care
Make a simple forecast. Example:
- Primary care visits: 2
- Specialist visits: 6
- Therapy visits: 10
- Imaging: 1
Then apply each plan’s copays or coinsurance and add premiums. You are not trying to be perfect. You are trying to avoid surprises.
Step 5: Stress test with a “bad year” number
Pick a realistic worst case for your budget. For Medicare Advantage, look at the out of pocket maximum and inpatient cost sharing. For Original Medicare, consider what your exposure could be without supplemental coverage, and how a Medigap premium might trade monthly cost for lower surprise bills.
Budgeting for Medicare costs: three sample monthly allocations
Many households find it easier to manage Medicare costs by setting aside a monthly “healthcare bucket” that covers premiums plus expected out of pocket spending. Here are three examples that add up cleanly. Adjust based on your plan premiums and typical care.
Allocation A: Lean healthcare budget (example $250 per month)
- Premiums: $150
- Prescriptions: $60
- Copays and coinsurance: $40
- Total: $250
Allocation B: Balanced healthcare budget (example $450 per month)
- Premiums: $220
- Prescriptions: $120
- Copays and coinsurance: $80
- Dental, vision, hearing spending: $30
- Total: $450
Allocation C: Higher use healthcare budget (example $750 per month)
- Premiums: $300
- Prescriptions: $250
- Copays and coinsurance: $175
- Medical travel and supplies: $25
- Total: $750
If your budget is tight, one decision rule is to keep at least one month of your healthcare bucket in a separate savings subaccount. For example, if you target $450 per month, aim for $450 to $900 set aside so a surprise bill does not force you to carry a balance on a credit card.
Common pitfalls that lead to higher costs
| Pitfall | Why it happens | How to avoid it |
|---|---|---|
| Auto renewing without checking the ANOC | Plan changes are easy to miss | Schedule a yearly review date and compare at least 2 alternatives |
| Choosing based on premium only | Copays and drug tiers can outweigh premium savings | Estimate total annual cost using your meds and expected visits |
| Assuming your doctor is still in network | Networks change and directories can lag | Confirm with both the plan directory and the provider office |
| Not checking pharmacy status | Preferred pharmacies can change | Price prescriptions at your pharmacy and one backup pharmacy |
| Ignoring prior authorization rules | Some services require approvals | Ask how approvals work for your ongoing treatments |
Where to verify plan details and get help comparing
Use official sources for plan documents, enrollment rules, and complaint processes:
- Medicare.gov for plan comparisons, coverage rules, and enrollment information
- Consumer Financial Protection Bureau (CFPB) for help with managing bills, debt, and financial decisions that can affect seniors and caregivers
- Federal Trade Commission (FTC) Consumer Advice for guidance on avoiding scams, including health and insurance related fraud
Open enrollment checklist you can print
- Read your plan’s ANOC and list every change that affects cost or access
- Write down all medications, doses, and preferred pharmacies
- Confirm your doctors and hospitals in network (if considering Medicare Advantage)
- Compare at least three plans using total annual cost, not premium alone
- Check the out of pocket maximum and inpatient cost sharing (Medicare Advantage)
- Check drug restrictions like prior authorization and step therapy
- Pick a plan that fits your budget in both a normal year and a bad year
- Save confirmation numbers and plan documents after you enroll
Bottom line
Medicare Open Enrollment 2026 plan changes are easiest to handle when you compare plans using your real medications, providers, and likely care needs. Start with your ANOC, price your prescriptions, confirm networks, and estimate total annual cost. If two plans look similar on cost, let access and rules decide: provider flexibility, prior authorization requirements, and pharmacy convenience often matter as much as the premium.
