Costco Enters Medicare Market: A Game Changer for Insurance

Costco's move into Medicare could reshape not only where older Americans shop for coverage, but how much trust, convenience and everyday service matter in choosing a health plan.

The warehouse retailer is entering the Medicare market through an expanded partnership with SCAN Group, the nonprofit parent of SCAN Health Plan. The companies plan a limited rollout that includes jointly branded Medicare Advantage products in two states and a Medicare Supplement product in a third. The specific markets and launch timing have not yet been disclosed pending regulatory approval, but the three markets collectively include roughly 5 million Medicare beneficiaries.

For insurance professionals, the headline is bigger than Costco simply adding another service. This is a major consumer brand bringing its reputation for value, product curation and convenience into one of insurance's largest and most complex markets. It also arrives at a time when Medicare Advantage carriers are closely scrutinizing medical costs, benefits, market footprints and profitability.

Costco Is Bringing More Than a Famous Name

Costco's advantage is not that it suddenly knows more about Medicare than established insurers. That expertise comes from SCAN. What Costco contributes is an unusually strong consumer relationship and a collection of healthcare touchpoints that many older adults already use.

The companies have identified pharmacy, over-the-counter benefits, vision and audiology as areas where the partnership could create a more connected experience. SCAN says future senior-focused products are expected to build on the complementary strengths of the two organizations, subject to regulatory review and approval.

That matters because health insurance is often experienced in fragments. A beneficiary may select a plan in one place, fill prescriptions somewhere else, shop for hearing products through another vendor and struggle to determine how a supplemental benefit actually works. Costco and SCAN are effectively asking whether some of those experiences can be brought closer together under a brand consumers already recognize.

"Older adults want healthcare that is easier to navigate, more responsive to their needs and rooted in organizations they trust."

Why the Timing Is Especially Interesting

Medicare Advantage remains enormous, but its growth story is changing. Just over 35 million people were enrolled in Medicare Advantage in February 2026, an increase of about 1.1 million from the previous year. That represented approximately 3 percent year-over-year growth, noticeably slower than the expansion the sector experienced through much of the previous two decades.

At the same time, carriers have been adjusting products and footprints as utilization, medical expenses and changing payment methodologies put pressure on margins. The environment is not simply one of declining reimbursement, however. CMS finalized policies for 2027 that are projected to produce an average 2.48 percent increase in Medicare Advantage payments, or more than $13 billion, before accounting for estimated risk-score trends.

That combination creates an interesting competitive backdrop. Medicare Advantage remains a massive market with millions of consumers actively making plan decisions, but carriers are being pushed to become more disciplined about where they compete, what benefits they offer and how efficiently they acquire and serve members.

A partnership with a retailer such as Costco offers another possible answer to that equation: instead of competing only through premiums, benefits and traditional advertising, a carrier can also compete through an established consumer ecosystem.

The Real Disruption May Be Distribution

The planned products are expected to be marketed inside Costco locations as well as through familiar insurance channels, including licensed agents and online distribution. Costco is therefore not replacing the existing Medicare sales system. It is adding another highly visible doorway into it.

That distinction matters for independent agents. Medicare is not a product category where brand familiarity automatically answers questions about provider networks, prescription coverage, maximum out-of-pocket exposure or supplemental benefits. A consumer may walk into the conversation interested because the Costco name feels familiar, yet still need professional help comparing the plan against other available choices.

In other words, stronger retail distribution could actually make consultative selling more important. Agents who compete primarily on access to products may feel pressure when large consumer brands enter the market. Agents who compete on education, comparison, annual reviews and understanding a client's healthcare priorities have a more defensible role.

What Agents and Agencies Should Watch

The rollout is still limited, so there is no reason for agencies to overhaul their Medicare strategies based on one announcement. There are, however, several developments worth monitoring as product details and markets become public.

• Distribution: Watch how prominently plans are promoted inside Costco and how agents participate in the sales process.
• Benefits: Compare pharmacy, vision, hearing and OTC integration with competing Medicare Advantage offerings.
• Consumer behavior: Track whether Costco's brand attracts beneficiaries who previously relied on different carriers or distribution channels.
• Retention: Pay attention to whether convenience translates into stronger member loyalty after the initial enrollment decision.
• Expansion: Treat the initial markets as a pilot that could inform broader geographic growth if results are favorable.

For agencies operating in eventual launch markets, the most useful preparation may be educational rather than promotional. Producers should be ready to explain exactly what Costco's role is, what SCAN's role is and how the co-branded product compares with alternatives available to each beneficiary.

A New Kind of Medicare Value Proposition

Traditional Medicare Advantage competition often centers on recognizable variables such as premium, provider network, prescription coverage, dental and vision benefits, allowances and out-of-pocket limits. Costco introduces another dimension: the consumer's existing relationship with the organization surrounding the insurance product.

That relationship could become especially meaningful if the plan experience connects naturally with services beneficiaries use regularly. A prescription benefit that works smoothly with a familiar pharmacy, for example, can feel more tangible than an abstract promise about customer experience.

There are also limits to how far the retail connection can go. A Costco membership cannot simply be packaged into the Medicare insurance offering as an added plan benefit. That separation reinforces an important point for agents: co-branding may influence initial interest, but the insurance product still has to stand on its own.

What This Signals to Carriers

For carriers, the Costco-SCAN relationship is another reminder that distribution partnerships do not have to look like traditional insurance partnerships. Retailers, pharmacies and other organizations with frequent consumer interactions can potentially contribute trust, visibility and service infrastructure that would be difficult for an insurer to build independently.

SCAN brings considerable Medicare experience to the arrangement. Its health plan serves nearly 460,000 members across 33 counties in California, Arizona, Nevada, Texas, New Mexico and Washington. Costco, meanwhile, operated 933 warehouses worldwide as of July 2026, including 641 in the United States and Puerto Rico.

The strategic question for carriers is whether similar partnerships can reduce friction throughout the member journey. Distribution may get the consumer's attention, but durable value would have to come from what happens after enrollment: accessing care, filling prescriptions, understanding benefits, resolving problems and renewing coverage.

That is also why carriers should resist viewing this purely as a customer-acquisition story. If Costco and SCAN can demonstrate that familiar retail infrastructure improves engagement or makes supplemental benefits easier to use, competitors may begin looking more aggressively for partners that can connect insurance coverage with everyday consumer behavior.

Trust Is Powerful, but Plan Fit Still Wins

Costco's reputation may help the new products earn attention faster than an unfamiliar Medicare brand could. Yet Medicare remains deeply personal. The best plan for one beneficiary may be a poor fit for another because doctors, medications, hospitals, financial priorities and desired benefits differ.

That creates an opportunity for agents to sharpen the distinction between brand confidence and coverage suitability. The question is not whether Costco is a trusted retailer. The question is whether a particular Costco-SCAN plan, once approved and available, fits an individual's healthcare and financial needs better than competing options.

Agencies that communicate that distinction clearly can position themselves as interpreters rather than gatekeepers. They do not need to compete with Costco's brand recognition. They need to help clients understand what sits behind the brand.

The Pilot Mentality Matters

Costco has characterized the Medicare effort as something it intends to learn from before determining what comes next. That makes the initial rollout important well beyond the three states involved. Results could provide a real-world test of whether a trusted membership retailer can meaningfully change how seniors discover, evaluate and use Medicare products.

"We plan to learn a lot from it, and we plan to make sure that we have the right product for our members."

If the model performs well, the bigger story may not be Costco alone. Other retailers and consumer brands could view Medicare as an opportunity to extend trusted relationships into insurance, while carriers could increasingly look outside traditional distribution for partners capable of making coverage feel simpler and more accessible.

What Insurance Professionals Should Take From It

Costco and SCAN are entering a Medicare Advantage market that is still growing, but doing so at a moment when growth has slowed and carriers are under greater pressure to prove that products are financially sustainable and genuinely useful to members.

For agents, the development reinforces the value of advice in a market where consumers may increasingly arrive with strong brand preferences. For agencies, it is a reminder to watch new distribution channels without assuming they eliminate the need for professional guidance. For carriers, it highlights the potential power of partnerships that combine insurance expertise with trusted consumer experiences.

The most important question is not whether seniors will buy Medicare coverage associated with Costco. Some almost certainly will. The question is whether Costco and SCAN can turn retail trust into a noticeably simpler healthcare experience. If they can, the ripple effects could reach far beyond the warehouse aisle.