2026 Medicare Changes Every Caregiver Needs to Understand Before Open Enrollment

Medicare's annual changes do not arrive with sirens. They arrive in a 40-page booklet called "Medicare & You" that lands in a parent's mailbox in September, sits on the counter for three weeks, and eventually gets recycled with the grocery circulars. Inside that booklet, for 2026, are dollar-figure shifts that will cost some families thousands more and save others thousands. Here is what actually matters, translated into the numbers a family needs.

Part B Premiums Crossed $200 for the First Time

The standard monthly premium for Medicare Part B (outpatient care, doctor visits, lab work, durable medical equipment) is now $202.90 per month.1 That is up from $185 in 2025. For most beneficiaries, this gets deducted automatically from a Social Security check, easy to miss without looking at the monthly benefit statement.

The impact compounds. A couple both on Medicare now pays $405.80 per month just for Part B, or $4,869.60 per year, before they see a single doctor. Higher earners pay more: individuals with modified adjusted gross income above $106,000 (or couples above $212,000) pay income-related surcharges that can push the monthly premium above $500 per person.

What to do: Check a parent's 2024 tax return. If their income was artificially high that year, due to a one-time event like selling a house or taking a required minimum distribution from a retirement account, they can file a Medicare Income-Related Monthly Adjustment Amount (IRMAA) appeal using Form SSA-44 to request a lower premium based on current income.5 It is free, takes about 30 minutes, and can save hundreds per month.

The New Part D Out-of-Pocket Cap: $2,100 Per Year

This is the biggest structural change in Medicare drug coverage since Part D launched in 2006. Starting in 2026, no Medicare beneficiary will pay more than $2,100 out of pocket for prescription drugs in a calendar year.34 Once that cap is reached, the plan covers 100% of remaining drug costs for the rest of the year.

Before this cap, patients taking expensive medications could face bills of $10,000 or more annually in the so-called "catastrophic" coverage phase. That exposure is gone.

Before this cap, patients taking expensive medications could face bills of $10,000 or more annually. That exposure is gone.

For families managing a parent's medications, the cap changes the math on Part D plan selection. Plans with higher monthly premiums but better formulary coverage may now be worth it if total out-of-pocket spending will hit the cap anyway. The opposite is also true: if a parent takes only generics totaling $600 a year, a low-premium plan remains the right choice.

What to do: During open enrollment (October 15 to December 7), use the Medicare Plan Finder tool at medicare.gov to compare plans. Enter every medication a parent takes, including dosages. The tool calculates total estimated annual costs, including premiums and copays. Do this every year, because plans change their formularies annually, and the cheapest plan last year may not be the cheapest plan this year.

Negotiated Drug Prices

The Inflation Reduction Act authorized Medicare to directly negotiate prices for certain high-cost drugs.2 The first ten negotiated prices took effect in 2026, including blood thinners and diabetes medications that many older patients take daily.6 Negotiated prices apply at the pharmacy counter; a parent does not need to do anything special.

The effect is real but narrow. Only ten drugs are covered in this first round. The next round of negotiations, for 2027, will add fifteen more. For a parent on a brand-name drug that is not yet on the negotiated list, the plan's standard copay or coinsurance still applies.

What to do: Ask the pharmacist whether any of a parent's medications are on the 2026 negotiated price list. If they are, verify that the enrolled plan is passing the savings through correctly. The savings are not automatic.

Prior Authorization Pilot in Six States

Medicare is testing a new prior authorization process in six states (Florida, Texas, Ohio, California, New York, and Pennsylvania) for certain outpatient procedures and imaging studies. In these states, some services that previously required only a doctor's order now require advance approval from the plan before the service is performed.

This does not mean the service will be denied. It means there is a new administrative step, and if the prior authorization is not obtained, a parent could be responsible for the full cost. That is a bill nobody wants to discover after the fact.

What to do: For a parent in one of these six states with a procedure or imaging study scheduled, confirm with the doctor's office that prior authorization has been submitted and approved before the appointment. Call and verify. Write down the authorization number.

Alzheimer's Drug Coverage: $26,500 to $32,000 Per Year

Two FDA-approved Alzheimer's treatments, lecanemab (Leqembi) and donanemab (Kisunla), are now covered under Medicare Part B. These are infusion therapies administered in clinical settings, not pharmacy pills. The annual cost ranges from $26,500 to $32,000 before insurance.

Medicare covers 80% of Part B services after the annual deductible ($257 in 2026). That means a parent's 20% coinsurance for one of these drugs could reach $5,300 to $6,400 per year. A Medigap supplemental policy (Plans C, F, or G) would cover most or all of that coinsurance. Medicare Advantage plans vary.

These drugs are indicated for early-stage Alzheimer's. They slow cognitive decline; they do not reverse it. The clinical criteria for eligibility include confirmed amyloid plaques (via PET scan or spinal fluid analysis) and a diagnosis of mild cognitive impairment or mild Alzheimer's dementia.

What to do: For a parent diagnosed with early-stage Alzheimer's whose neurologist has not discussed these medications, ask directly. Not all providers are familiar with the coverage details or the clinical eligibility criteria. If a parent qualifies, verify whether their current coverage (Original Medicare plus Medigap, or Medicare Advantage) will minimize the out-of-pocket cost.

Open Enrollment Is October 15 to December 7

Every year, this window lets Medicare beneficiaries change their Part D drug plan, switch between Original Medicare and Medicare Advantage, or add or drop Medigap coverage (with some restrictions). The decisions made during this window take effect January 1.

The plan that worked last year may cost more this year, cover fewer drugs, or exclude a preferred pharmacy. Thirty minutes on medicare.gov, or a call to the State Health Insurance Assistance Program (SHIP, free counseling in every state), can save a family hundreds or thousands of dollars.

Sources

1. Centers for Medicare and Medicaid Services. CMS Releases 2026 Medicare Parts B and D Premiums.
2. KFF. FAQs on the Inflation Reduction Act and Medicare Drug Price Negotiation.
3. KFF. Medicare Part D 2026 Spotlight: The $2,000 Out-of-Pocket Cap.
4. Medicare.gov. Costs in the Coverage Gap and the Part D Out-of-Pocket Cap.
5. Social Security Administration. SSA-44: Medicare Income-Related Monthly Adjustment Amount.
6. CMS. HHS Finalizes Historic Drug Price Negotiation: First 10 Drugs Covered in 2026.

This article is for educational and informational purposes only. It does not constitute medical or financial advice. Always consult qualified professionals for guidance specific to your situation.

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