What Is SilverScript Insurance? Coverage, Costs, and Enrollment

SilverScript Insurance is a standalone Medicare Part D prescription drug plan offered by Aetna, part of the CVS Health family of companies.1Aetna Medicare. Aetna SilverScript Prescription Drug Plans It covers outpatient prescription medications for people enrolled in Original Medicare and follows the same federal benefit rules as every other Part D plan. For 2026, those rules look very different than they did two years ago: the old coverage gap is gone, annual out-of-pocket drug spending is capped at $2,100, and once you hit that cap you pay nothing for covered drugs for the rest of the year.2Centers for Medicare & Medicaid Services. Final CY 2026 Part D Redesign Program Instructions

How Part D Coverage Works in 2026

The Inflation Reduction Act reshaped Part D starting in 2025, and the 2026 benefit continues that redesigned structure. There are now three phases instead of the old four:2Centers for Medicare & Medicaid Services. Final CY 2026 Part D Redesign Program Instructions

  • Deductible phase: you pay 100% of your drug costs until you’ve spent $615, the 2026 maximum deductible. Some SilverScript plans waive the deductible on lower-tier generics, so those drugs are covered from day one.
  • Initial coverage phase: after the deductible, you pay 25% coinsurance on covered drugs until your out-of-pocket total reaches $2,100.
  • Catastrophic phase: once you hit $2,100 out of pocket, you pay nothing for covered Part D drugs for the rest of the calendar year.

That $2,100 cap is the biggest change for most enrollees. Under the old system, someone on expensive specialty medications could face thousands of dollars in costs during the coverage gap. Now, $2,100 is the ceiling.3Medicare. How Much Does Medicare Drug Coverage Cost?

What You Pay Depends on the Formulary and Where You Fill

Every SilverScript plan uses a formulary, the list of medications the plan covers. Drugs are grouped into cost-sharing tiers, and lower tiers cost you less.4Medicare. How Do Drug Plans Work? A typical structure runs from Tier 1 generics (lowest copays), to Tier 2 preferred brands, to Tier 3 non-preferred brands, up to a specialty tier for very high-cost drugs like cancer or autoimmune treatments. Some SilverScript plans keep specialty as its own tier; others fold it into non-preferred.

Formularies change. Plans can update their drug lists during the year when new drugs become available or clinical evidence shifts.4Medicare. How Do Drug Plans Work? If a drug you take moves to a higher tier or comes off the list entirely, you’ll get notice and have the right to request an exception.

Where you fill matters, too. SilverScript’s preferred pharmacy network includes CVS Pharmacy, Walmart, Costco, Kroger, Albertsons, Publix, and Safeway, among others, with CVS Caremark handling preferred mail order.5Aetna Medicare. Find an Aetna Medicare Network Pharmacy Filling at a preferred pharmacy generally costs less than filling at a standard in-network pharmacy. For medications you take every month, a 90-day mail-order supply often costs less than three 30-day retail fills.

Who Can Enroll and When

To join SilverScript, you need to meet the same requirements as any standalone Part D plan:6Centers for Medicare & Medicaid Services. Medicare Prescription Drug Eligibility and Enrollment

  • You must have Medicare Part A or Part B. Most people qualify at 65; you can also qualify earlier through 24 months of Social Security disability benefits, or a diagnosis of End-Stage Renal Disease or ALS.7Medicare. I’m Getting Social Security Benefits Before 65
  • You must be a U.S. citizen or lawfully present and live in the plan’s service area. Part D isn’t available to people living abroad.
  • You can’t be enrolled in a Medicare Advantage plan that already includes drug coverage. Joining a standalone Part D plan like SilverScript will automatically disenroll you from an MA-PD plan and return you to Original Medicare. This catches people off guard, so if you want to keep your Medicare Advantage medical benefits, don’t sign up for a separate Part D plan unless your MA plan doesn’t already cover drugs.8Medicare. Choose How You Get Drug Coverage

You can enroll during one of three windows. Your Initial Enrollment Period is the seven months around your 65th birthday: three months before, your birthday month, and three months after.9Medicare. When Does Medicare Coverage Start? The Annual Enrollment Period runs October 15 through December 7 every year, with changes effective January 1. This is when to compare SilverScript’s updated formulary, premiums, and pharmacy network against other plans, because pricing and drug lists shift each year.

Special Enrollment Periods open outside those windows when certain life events happen. The most common triggers give you two full months to act:10Medicare. Special Enrollment Periods

  • Moving outside your plan’s service area.
  • Losing employer or union drug coverage.
  • Losing other creditable drug coverage.
  • Returning to the U.S. from abroad.
  • Release from incarceration if you kept Part A or Part B.

Qualifying for Medicaid or Extra Help lets you make changes once per calendar month for as long as you qualify. If your existing SilverScript plan stays available in your area, it renews automatically each year.

The Late Enrollment Penalty

Delaying Part D is one of the costlier mistakes in Medicare, because the penalty never goes away. If you go 63 or more days without Part D or other creditable drug coverage after you’re first eligible, Medicare adds a permanent surcharge to your monthly premium for as long as you have Part D.11Medicare. Avoid Late Enrollment Penalties

The math: 1% of the national base beneficiary premium, multiplied by the number of full months you went without coverage. For 2026, the base premium is $38.99.12Centers for Medicare & Medicaid Services. 2026 Medicare Part D Bid Information and Part D Premium Stabilization Demonstration Parameters Fourteen months uncovered would mean 14% of $38.99, or about $5.50 tacked onto your monthly premium.11Medicare. Avoid Late Enrollment Penalties Because the base premium changes annually, so does the dollar amount of your penalty.

You won’t owe a penalty if you had other drug coverage at least as good as Part D. Common examples include employer or union drug plans, TRICARE, VA benefits, and the Federal Employees Health Benefits Program.13Centers for Medicare & Medicaid Services. Creditable Coverage and Late Enrollment Penalty Your plan sends a notice each year stating whether its coverage is creditable. Keep those notices. If you enroll in Part D later, they’re your proof that you shouldn’t owe a penalty. People who qualify for Extra Help are exempt from the penalty entirely.14Centers for Medicare & Medicaid Services. The Part D Late Enrollment Penalty Partner Tip Sheet

Help Paying for Your Drugs

Two federal programs can lower what you actually pay under a SilverScript plan.

The Extra Help program, also called the Low-Income Subsidy, helps people with limited income and resources pay for Part D. If you qualify, you may pay little or nothing for your monthly premium, deductible, and copays. For 2025, the income limit is roughly $23,475 for an individual or $31,725 for a married couple living together, with resource limits of $18,090 and $36,100 respectively. Even slightly above those thresholds, you may still qualify for partial Extra Help, particularly if you support family members or have earnings from work.15Social Security Administration. Understanding the Extra Help With Your Medicare Prescription Drug Plan You apply through Social Security online, by phone, or at a local office.

The Medicare Prescription Payment Plan is a newer option. Starting in 2025, every Part D plan, SilverScript included, must offer it. Instead of paying a large amount at the pharmacy counter, you can spread your out-of-pocket drug costs into capped monthly payments over the year.16Centers for Medicare & Medicaid Services. Medicare Prescription Payment Plan It doesn’t change your total costs; it just smooths the timing. You can opt in at any point in the year if you expect a big upfront bill.

If SilverScript Denies a Drug

If SilverScript won’t cover a medication you need, charges more than you expected, or drops a drug from its formulary, you have the right to push back. There are two related processes.

An exception is a request to the plan itself. A formulary exception asks the plan to cover a drug that isn’t on its list. A tiering exception asks the plan to charge you a lower tier’s cost-sharing for a drug that sits on a higher tier. For a tiering exception, your prescriber must submit a supporting statement explaining that the preferred alternatives would be less effective for your condition or would cause adverse effects.17Centers for Medicare & Medicaid Services. Exceptions The plan has 72 hours to respond after receiving the prescriber’s statement.18eCFR. 42 CFR 423.568 – Standard Timeframe and Notice Requirements

If the plan denies your request, you can appeal. The first appeal, called a redetermination, goes back to SilverScript for a second look, and you have 65 calendar days from the initial denial to file it. The plan then has 7 calendar days for a standard review, or 72 hours if your health is at risk and you request an expedited review.19Centers for Medicare & Medicaid Services. Redetermination by the Part D Plan Sponsor If the plan upholds its denial, further levels of appeal go to an independent review entity and, if needed, on to an administrative law judge and beyond. Each level has its own deadline, and missing one generally ends your right to keep appealing.

If you can’t get an issue resolved with the plan directly, you can file a complaint with CMS by calling 1-800-MEDICARE or contact your state insurance department. The star ratings CMS publishes each fall are worth a look during open enrollment as a rough measure of how well a plan has treated its members.