Medicare and Cosentyx coverage

If you’ve ever seen the price tag for Cosentyx and quietly closed your laptop to go lie down, you’re not alone. This biologic can do amazing things for conditions like plaque psoriasis and psoriatic arthritis – but it also comes with a “luxury car payment” kind of price. The good news: Medicare can help. The less-good news: how Medicare and Cosentyx coverage works depends on a whole alphabet soup of Parts (A, B, D, MA) and plan rules.

In this guide, we’ll break down – in plain English – how Medicare covers Cosentyx, what you might pay out of pocket, and smart ways to keep those costs under control. We’ll also walk through real-life style scenarios so you can see how the rules actually play out, not just how they look in a brochure.

What is Cosentyx, and who needs it?

Cosentyx (secukinumab) is a biologic medication that blocks interleukin-17A (IL-17A), a protein involved in inflammation. It’s given either as a self-injection (usually with a prefilled pen or syringe) or, less commonly, as an IV infusion in a clinic.

Cosentyx is FDA-approved to treat:

• Moderate to severe plaque psoriasis in people 6 years and older
• Psoriatic arthritis in adults and children as young as 2
• Ankylosing spondylitis (AS)
• Non-radiographic axial spondyloarthritis (nr-axSpA)
• Some juvenile arthritis and hidradenitis suppurativa indications

If your disease hasn’t responded well to older treatments like methotrexate or traditional DMARDs, a specialist may recommend a biologic like Cosentyx. That’s where Medicare coverage becomes a big deal, because this is not a $20 generic.

How much does Cosentyx cost without insurance?

List prices change all the time, but recent estimates put Cosentyx around:

• About $7,936 per month for a typical self-injection package
• About $4,401 per IV infusion given in a clinic

Even if you’re not planning to pay list price, those numbers matter because your share of the cost (deductible, coinsurance, or copay) is usually based on that starting price.

Novartis also offers a direct-to-patient option for people paying cash, with heavily discounted per-dose pricing compared with list price. That’s mainly for people who don’t want to go through insurance or don’t have coverage for the drug.

Does Medicare cover Cosentyx?

Short answer: yes, Medicare can cover Cosentyx. Longer answer: the details depend on how you receive it and what type of Medicare coverage you have.

When Cosentyx is covered under Medicare Part B

Medicare Part B covers outpatient medical services – things like doctor visits, imaging, and certain drugs given in a clinic or doctor’s office. Cosentyx may fall under Part B if:

• You receive Cosentyx as an IV infusion in a hospital outpatient department or infusion center
• Your doctor buys and administers the drug in-office (the “buy-and-bill” model)

Under Part B in 2025:

• You first pay the Part B annual deductible (for 2025, that’s $257).
• After that, Medicare generally pays 80% of the approved amount for the drug and infusion service.
• You’re responsible for the remaining 20% coinsurance.

For example, if a Cosentyx infusion is billed at about $4,401, 20% coinsurance is roughly $880 per infusion. If you have a Medigap (Medicare Supplement) plan, it may cover some or all of that 20%, dramatically lowering your out-of-pocket cost. If you’re in a Medicare Advantage plan, your share will depend on that plan’s specific copay or coinsurance rules for Part B drugs.

When Cosentyx is covered under Medicare Part D

Most people use Cosentyx as a self-injection at home. In that case, it’s usually covered as a Part D prescription drug (either through a stand-alone Part D plan or through a Medicare Advantage plan that includes drug coverage).

Key points about Part D coverage for Cosentyx:

• Cosentyx is typically a specialty tier drug – meaning it’s high-cost and subject to higher coinsurance.
• Your plan’s formulary (drug list) has to include Cosentyx for it to be covered. Many do, but not all.
• Plans often require prior authorization, and sometimes “step therapy” (trying a different biologic or cheaper drug first).

Every Part D plan is different, so one plan might charge 25% coinsurance for Cosentyx while another might use a flat copay or a higher percentage for specialty drugs.

How the new Part D $2,000 out-of-pocket cap helps with Cosentyx

Here’s some genuinely good news: starting in 2025, there’s a new annual cap on what you pay out of pocket for Part D-covered prescriptions – $2,000 per year. Once you hit that, your plan pays 100% of covered Part D drugs for the rest of the year.

What this means in real life if Cosentyx is covered under your Part D plan:

• You still may have to pay a deductible (up to $590 in 2025) and coinsurance for Cosentyx.
• But all those payments add up toward your $2,000 out-of-pocket cap.
• After you’ve paid $2,000 total for all covered Part D drugs in that calendar year, you won’t pay anything more for Cosentyx (or other Part D meds) until January 1 of the next year.

Because Cosentyx is so expensive, many people hit that $2,000 cap quickly – sometimes in just a couple of fills. The cap doesn’t make Cosentyx cheap, but it does prevent the truly runaway bills patients were facing before 2025.

Another nice perk: the new Medicare Prescription Payment Plan lets you spread those out-of-pocket costs over the year instead of paying huge amounts all at once at the pharmacy counter. You can opt into that through your plan.

Medicare Advantage plans and Cosentyx coverage

Medicare Advantage (Part C) plans bundle Parts A and B, and often Part D, into one private plan. If you’re in a Medicare Advantage plan, Cosentyx coverage still follows the same general logic:

• If you get Cosentyx as an infusion in an outpatient setting, it’s treated as a Part B drug within your plan, with plan-specific cost-sharing.
• If you inject Cosentyx at home, it’s covered under the plan’s Part D component, including the $2,000 cap.

Where it gets tricky is that Medicare Advantage plans can have their own rules about:

• Which specialists you can see (in-network vs out-of-network)
• Which specialty pharmacies you must use
• Prior authorization and step therapy requirements

If Cosentyx is important to your treatment plan, it’s worth checking the details before you pick or switch a Medicare Advantage plan during open enrollment.

What will I actually pay for Cosentyx on Medicare?

Unfortunately, there’s no one-size-fits-all number, but here are example scenarios to show how the pieces fit together.

Example 1: Self-injection under a Part D plan

Imagine Maria, 67, with plaque psoriasis, uses Cosentyx injections at home. She has a stand-alone Part D plan with:

• $0 deductible
• 25% coinsurance for specialty tier drugs like Cosentyx

Because Cosentyx’s monthly price is so high, Maria will quickly reach $2,000 in out-of-pocket costs. Once she hits that cap, the plan pays 100% of covered drugs for the rest of the year. Her total yearly out-of-pocket cost for Cosentyx and other Part D drugs will be $2,000 plus her plan premiums – still a lot, but dramatically less than paying 25% all year long.

Example 2: Infusions covered under Part B with a Medigap plan

Now take James, 72, with ankylosing spondylitis, getting Cosentyx as an infusion in a hospital outpatient clinic. He has Original Medicare plus a Medigap Plan G.

• He pays the Part B deductible ($257 in 2025).
• After that, Medicare pays 80% of the Cosentyx cost and infusion fees.
• His Medigap Plan G picks up most or all of the remaining 20% coinsurance.

In this setup, James’ cost per infusion after the deductible may be minimal or even $0, depending on his Medigap plan. His biggest ongoing costs are his Part B premium and his Medigap premium, not the drug itself.

Example 3: Medicare Advantage with coinsurance for Part B drugs

Patricia, 70, has psoriatic arthritis and is in a Medicare Advantage plan that charges 20% coinsurance for Part B drugs and services. Her Cosentyx infusions fall under that benefit.

She’ll pay around 20% of each infusion cost until she hits the Medicare Advantage plan’s maximum out-of-pocket limit (for 2025, that can be as high as $9,350 for in-network services). Once she reaches that limit, the plan covers 100% of covered services for the rest of the year. If she doesn’t hit the cap, her total cost will depend on how often she gets infusions and what else she uses her coverage for.

Do manufacturer co-pay cards work with Medicare?

Here’s a common – and frustrating – issue: manufacturer savings cards for Cosentyx (often promoted as “$0 copay” offers) are generally not available to people on federal programs like Medicare, Medicaid, or TRICARE. This is due to federal anti-kickback rules.

So if you’re on Medicare, you usually can’t use a Cosentyx copay card to lower your share of the cost. However, that doesn’t mean you’re out of options.

Other financial help for Cosentyx on Medicare

Novartis Patient Assistance Foundation (NPAF)

Novartis funds a separate non-profit, the Novartis Patient Assistance Foundation (NPAF), which may provide certain Novartis drugs, including Cosentyx, at no cost to eligible patients who:

• Have limited income
• Are uninsured – or have government insurance like Medicare – and still can’t reasonably afford their medication
• Meet product-specific criteria

Unlike copay cards, some patient assistance programs can help people with Medicare in certain circumstances, though the rules are very specific. Applications typically require income documentation (such as tax returns) and information about your current insurance.

Foundations and Extra Help

Other potential sources of help include:

• Extra Help (Low-Income Subsidy): A federal program that can reduce Part D premiums, deductibles, and copays if your income and assets are below certain limits.
• Disease-specific foundations: Some charities offer grants to help with copays for people with psoriasis, psoriatic arthritis, or other inflammatory conditions – though funding can open and close quickly.
• State Pharmaceutical Assistance Programs (SPAPs): A handful of states run their own programs to help with drug costs for Medicare beneficiaries.

How to check your specific Cosentyx Medicare coverage

Because every plan has its own formulary and cost-sharing rules, the only way to know what Cosentyx will cost you is to look at your individual coverage. Here’s a step-by-step approach:

1. Confirm how you receive Cosentyx. Is it self-injection at home, or infusion in a clinic? This determines whether you’re dealing with Part B or Part D.
2. Look up Cosentyx on your plan’s formulary. For Part D or Medicare Advantage plans, you can search the plan website by drug name and dosage to see:
   • Whether Cosentyx is covered
   • What tier it’s on (usually specialty)
   • What the copay or coinsurance is
   • Whether prior authorization or step therapy is required
3. Use the Medicare Plan Finder. During open enrollment, you can compare plans at Medicare.gov using your actual list of medications, including Cosentyx, to estimate your annual costs under different plans.
4. Call your plan’s member services. Ask for:
   • Your expected monthly cost for Cosentyx under your current plan
   • What happens after you reach the $2,000 Part D cap (if applicable)
   • Any preferred specialty pharmacies or infusion centers you’re required to use
5. Talk with a SHIP counselor. State Health Insurance Assistance Programs (SHIPs) offer free counseling to help you understand your options and compare plans.

It’s a bit of homework, but for a drug as expensive as Cosentyx, a few phone calls can literally save you thousands of dollars a year.

Real-world experiences with Medicare and Cosentyx coverage

Numbers and acronyms are helpful, but they don’t always show what this looks like in real life. Here are some composite, real-to-life style scenarios that reflect the kinds of experiences people report when navigating Cosentyx and Medicare. These aren’t specific individuals, but they’re very close to what patients and caregivers describe.

“I almost walked away from treatment because of the first pharmacy quote.”

Elaine is 69 and has lived with plaque psoriasis for decades. When her dermatologist finally suggested Cosentyx, she was relieved – until the specialty pharmacy called with a price that sounded like a mortgage payment.

Her first quote was based on a misunderstanding: the pharmacy had not yet applied her Part D coverage details, and no one mentioned the new $2,000 cap. After a very stressful weekend of thinking, “There’s no way I can afford this,” she called back, asked specifically about Part D stages and the 2025 cap, and discovered her true out-of-pocket maximum for the year would be $2,000, spread over several months.

The bill was still serious, but it was a problem she could plan for, instead of an impossible number that made her want to refuse treatment. The lesson she shares with friends: “Don’t accept the first big number they throw at you until you’re sure they’ve applied your Medicare benefits correctly.”

“My Medigap plan turned 20% coinsurance into almost nothing.”

George is 73, a retired mechanic with ankylosing spondylitis. His rheumatologist prefers to keep him on clinic-based infusions so they can monitor his response closely. Under Part B, each Cosentyx dose would have left him with 20% coinsurance – several hundred dollars per infusion.

Fortunately, George has a Medigap Plan G he bought when he first went on Medicare. After paying his Part B deductible, his Medigap plan picks up almost all of his coinsurance for the rest of the year. George still pays premiums for Part B and Medigap, but the actual bill for Cosentyx infusions is close to $0 at the point of care.

What surprised him most? He originally bought Medigap to protect against hospital bills. He didn’t realize how important it would become later for expensive specialty drugs under Part B.

“Switching Medicare Advantage plans made thousands of dollars’ difference.”

Lena, 66, started Cosentyx just as she aged into Medicare. Her first Medicare Advantage plan covered the drug, but it used a high coinsurance rate for specialty medications and didn’t have great out-of-pocket protections for Part D. Because Cosentyx is so expensive, her share of the cost added up quickly.

During open enrollment, she sat down with a SHIP counselor, plugged her drugs (including Cosentyx) into the Medicare Plan Finder, and compared plans. Another Medicare Advantage plan in her area had:

• Better coinsurance for specialty drugs
• A more favorable specialty-tier design
• The same doctors and hospitals in network

On paper, the new plan saved her more than $1,000 in expected drug costs for the next year – on top of the protection from the $2,000 Part D cap. She jokes that “I’ve never been so excited to look at fine print.”

“Patient assistance came through when I thought I was out of options.”

Daniel is 71 and relies primarily on Social Security income. When his doctor recommended Cosentyx for severe psoriatic arthritis, his first reaction was, “There’s no way I can pay for that.” His Medicare plan covered the drug, but even with the $2,000 Part D cap, that was a big chunk of his yearly budget.

His clinic’s social worker suggested applying to a patient assistance foundation that helps people with Medicare who face high costs for medications like Cosentyx. The application required documentation of his income, his Medicare coverage, and his prescription. After a few weeks – and some follow-up phone calls – he was approved for a grant that helped cover his out-of-pocket costs for the year.

His biggest takeaway: many people give up after hearing “copay cards aren’t allowed for Medicare” and don’t realize other types of assistance might still be available. The process isn’t fun, but it can make the difference between getting a life-changing drug and going without.

“Talking to my doctor about alternatives was part of the financial plan.”

Finally, not every story ends with staying on Cosentyx. Some people find that even with Medicare and assistance, the combination of premiums, deductibles, and copays is still hard to manage.

One common strategy: being very honest with the prescribing specialist about finances. In some cases, there may be other biologics with slightly better coverage on a given plan’s formulary, or options that fall under Part B instead of Part D (or vice versa) in a way that better fits a patient’s individual coverage mix.

Doctors can’t magically change Medicare rules, but they can often help by choosing among clinically appropriate options with an eye on how each one will be billed and covered. The key is speaking up early, before the pharmacy ring-up becomes a crisis.

Bottom line: Medicare and Cosentyx coverage is complicated, but not hopeless

Cosentyx is an expensive medication, but Medicare coverage and the newer federal protections for drug costs make it far more reachable than it used to be. The big ideas to remember are:

• Cosentyx can be covered under Part B (infusions, clinic-based) or Part D (self-injections at home), and the rules are different for each.
• Starting in 2025, Part D has a $2,000 annual cap on out-of-pocket prescription costs for covered drugs, which can be a major relief for Cosentyx users.
• Medigap plans, Medicare Advantage designs, Extra Help, patient assistance foundations, and the Novartis Patient Assistance Foundation can all help reduce costs, depending on your situation.
• You don’t have to figure this out alone – your doctor’s office, Medicare Plan Finder, SHIP counselors, and plan representatives are all tools you can use.

This article is for general education only and doesn’t replace personalized advice from a licensed health professional or benefits counselor. But with a bit of information and some strategic questions, you can turn “There’s no way I can afford this” into a more realistic plan for getting the treatment your doctor recommends.