Most people enroll in a Medicare plan at 65 and never look at it again. That’s understandable — the enrollment process is stressful, you’re relieved to have coverage, and the idea of going through it again feels daunting. But Medicare plans change every year. Premiums shift. Drug formularies change. Networks narrow. And the plan that saved you money at 65 may be costing you significantly more by 70.

Here’s how to know if you’re in the wrong plan — and what to do if you are.

How Medicare Plans Change Year to Year

Every Medicare Advantage and Part D plan submits a new bid to CMS each year. That means:

Premiums can rise or fall year to year
Drug formularies change — medications that were covered this year may be dropped, moved to a higher tier, or require prior authorization next year
Provider networks shrink or expand — your doctor may leave your plan’s network without warning
Benefits change — dental, vision, and hearing coverage can be added, reduced, or repriced
Star ratings shift — a plan that earned 4 stars this year may drop to 3 stars next year

None of these changes require your permission. You receive an Annual Notice of Change (ANOC) letter each September, but most beneficiaries don’t read it carefully — or don’t know how to interpret it.

Signs You’re Probably in the Wrong Plan

Any of these warrants a review:

Your premium has increased substantially. A $40–$80/month increase may signal that better-valued plans have entered your market, or that your current plan is losing enrollment and shifting costs.

Your primary care doctor or a specialist left your network. With Medicare Advantage plans, you’re generally limited to in-network providers for non-emergency care. If your physician doesn’t accept your plan, you may be paying out-of-pocket without knowing it.

Your prescription costs have increased. Drug formulary changes are one of the most common reasons people pay more year over year. If you take multiple medications, even a tier change on one drug can cost hundreds annually.

You’re paying for benefits you don’t use. Many Advantage plans bundle dental, vision, gym memberships, and OTC allowances. If you’re paying a higher premium for bundled benefits you never use, a leaner plan may save you money.

You’ve had significant health changes. A new diagnosis, a surgery, or a change in medication regimen can completely change which plan is optimal for your situation.

You moved. Medicare Advantage plans are county-specific. Moving even a short distance can affect your plan availability and network entirely.

The Annual Enrollment Period — Your Window to Switch

The Annual Enrollment Period (AEP) runs October 15 through December 7 each year. During this window, any Medicare beneficiary can:

Switch from Medicare Advantage to Original Medicare
Switch from Original Medicare to Medicare Advantage
Switch from one Advantage plan to another
Add, drop, or change a Part D prescription drug plan

Changes made during AEP take effect January 1 of the following year.

There’s also a Medicare Advantage Open Enrollment Period (January 1 – March 31) that allows Advantage enrollees to make one switch — including back to Original Medicare.

What a Medicare Plan Review Actually Involves

A thorough plan review with an independent broker takes about 20–30 minutes and covers:

Your current plan details — premium, deductible, MOOP, network type
Your providers — confirming your doctors and hospitals are in-network on any comparison plans
Your prescriptions — running your medication list through the formulary of each plan option in your county
Your utilization — how often you use healthcare and what types of services you use most
Your priorities — lowest premium? Most comprehensive coverage? Specific benefits?

The output is a side-by-side comparison of your best options — with a clear recommendation and the reasoning behind it.

Why Independent Matters

Insurance agents can be “captive” (representing only one company) or “independent” (representing many). A captive agent can only show you their company’s plans. An independent broker like Legacy Wealth Services compares plans across every carrier available in your county — typically 10–20 options depending on your zip code.

There’s no cost to you for this service. Independent brokers are compensated by the carrier when you enroll, at the same rate regardless of which plan you choose. That means there’s genuinely no financial incentive to steer you toward any particular carrier.

Oregon-Specific Considerations for 2026

Oregon Medicare beneficiaries have access to a mix of HMO and PPO plans from carriers including Regence, Moda, Kaiser, UnitedHealthcare, Humana, Aetna, and others. The right mix of options varies significantly by county — rural Oregon counties often have fewer Advantage plan options than the Portland metro area, which can make Supplement (Medigap) plans more attractive.

Oregon also has strong consumer protections around Medigap guaranteed issue rights during certain Special Enrollment Periods — an important consideration for anyone transitioning between coverage types.

How to Get a Free Plan Review

If you haven’t reviewed your Medicare coverage in the past year — or if you’ve experienced any of the situations described above — a review is worth 30 minutes of your time.

Book a free Medicare plan review → I’ll compare every plan available in your county, confirm your providers are covered, run your prescriptions through the formulary, and give you a clear recommendation. No pressure, no obligation.

Or explore your options at our Medicare & Social Security hub →

AEP runs October 15 – December 7. Don’t wait until the last week — plan reviews booked in October and early November have the most flexibility.

Medicare Plan Review Oregon 2026: How to Know If You're in the Wrong Plan