For decades, Costco Wholesale has built one of retail’s strongest business models around a deceptively simple proposition: pay an annual membership fee, and Costco will use its enormous purchasing power to help you get more for your money. That formula began with groceries and household products but has expanded steadily into gasoline, pharmacy services, optical centers, hearing aids, travel, insurance relationships and other services. Now Costco is preparing to enter a considerably larger and more complicated market: Medicare.
Costco plans to launch Costco-branded Medicare products through a partnership with nonprofit insurer SCAN Group. According to The Wall Street Journal, the initial rollout is expected to include Medicare Advantage plans in two states and a Medicare supplement product in a third. The companies have not disclosed the specific states or launch dates while regulatory approvals are pending, but the three target markets reportedly include approximately five million Medicare beneficiaries.
For Costco shareholders, this shouldn’t simply be viewed as another product being added to the warehouse. It represents a potentially important test of whether the enormous trust surrounding Costco’s membership brand can be extended into healthcare. If the strategy works, Medicare could strengthen Costco’s relationship with older customers, drive additional business through its pharmacies and health services, increase the perceived value of membership and eventually create additional revenue opportunities.
Costco’s Medicare Experiment Begins With SCAN
Costco is partnering with SCAN Group, a Long Beach, California-based nonprofit healthcare organization specializing heavily in Medicare. SCAN has roughly 560,000 members and operates Medicare Advantage plans in several states, including California, Arizona, Nevada, New Mexico, Texas and Washington. That gives Costco an experienced insurance partner rather than requiring the retailer to build a Medicare operation from scratch.
Under the planned rollout, the companies intend to offer jointly branded Medicare Advantage products in two states and a Medicare supplement product in another. While a three-state rollout may sound modest for a retailer of Costco’s size, the initial markets reportedly contain around five million Medicare enrollees. That gives the companies a meaningful population on which to test enrollment, customer response, utilization and economics before deciding whether broader expansion makes sense.
The relationship between Costco and SCAN also isn’t starting from zero. The companies have already worked together on healthcare benefits, including pharmacy and optical services. Costco’s pharmacy website identifies Costco as a SCAN Health Plan preferred pharmacy, and SCAN has previously expanded benefits that can be used through Costco. The Medicare branding agreement therefore appears to represent an evolution of an existing partnership rather than a completely new venture.
Costco Wants to Make Medicare Benefits Easier to Use
The most interesting part of the strategy is how the Medicare products could connect with services Costco already provides. SCAN CEO Sachin Jain said the new plans are intended to integrate closely with Costco offerings involving prescription drugs, vision, hearing products, over-the-counter medications and food-related benefits. The objective is to make it easier for Medicare beneficiaries to understand and actually use the benefits available to them.
That could address a genuine consumer problem. Medicare can be extraordinarily confusing, particularly when seniors must compare premiums, deductibles, provider networks, drug formularies, supplemental benefits and annual coverage changes. Costco has spent decades building a reputation around doing some of the comparison shopping for its customers. Rather than offering endless choices, Costco generally narrows its selection and attempts to provide strong value within each category.
That philosophy could be particularly powerful in healthcare. Costco Senior Vice President of Pharmacy Richard Stephens told The Wall Street Journal that members know products sold through Costco have been vetted and that the company believes it is offering one of the best choices in a category. Costco is effectively testing whether that consumer confidence can extend from choosing groceries, televisions and tires to making one of the most consequential financial and healthcare decisions Americans face after age 65.
Costco Is Becoming More Than a Warehouse Retailer
Investors should look beyond Medicare itself and consider what Costco’s expansion says about the evolution of the company. Costco increasingly resembles a membership ecosystem rather than simply a retailer. A member can purchase groceries at Costco, fill prescriptions through Costco Pharmacy, buy glasses through Costco Optical, obtain hearing aids, fill a vehicle with gasoline and book an entire vacation through Costco Travel. Healthcare and insurance represent another logical extension of that ecosystem.
Every additional service potentially gives a household another reason to maintain its membership. Someone who uses Costco only to buy groceries may value the membership, but a customer who uses Costco for groceries, gasoline, prescriptions, eyeglasses, hearing products, vacations and healthcare services could find that membership considerably harder to replace. That increased dependence is valuable because Costco’s membership economics sit at the center of its investment story.
In Costco’s fiscal third quarter of 2026, membership fee revenue reached approximately $1.37 billion, compared with $1.24 billion during the same period a year earlier. Through the first 36 weeks of the fiscal year, membership revenue exceeded $4 billion. Costco also reported membership renewal rates above 92% in the United States and Canada. Those numbers demonstrate why Costco does not necessarily need every new service to become a massive standalone profit center. If Medicare and other services make customers more likely to renew, upgrade or spend more through Costco, they can strengthen the economics of the entire business.
The Aging Consumer Could Be a Major Opportunity
The Medicare move also makes strategic sense when viewed through America’s demographics. Healthcare spending naturally becomes more important as consumers age, and older households often interact with pharmacies, doctors, vision providers and hearing services much more frequently than younger consumers. Medicare creates an opportunity for Costco to connect those recurring healthcare needs with services the company already operates.
That could create a powerful cycle. A Medicare beneficiary who fills prescriptions at Costco may visit the warehouse more frequently. Someone receiving vision benefits could use Costco Optical. Hearing benefits could support Costco’s hearing centers, while over-the-counter benefits could generate additional purchases inside the warehouse. Costco would not necessarily need to make large profits directly from the insurance product if the relationship increases spending and engagement throughout the broader Costco ecosystem.
This is particularly relevant because Medicare isn’t a one-time transaction. Beneficiaries regularly reassess their coverage as premiums, benefits, networks and personal healthcare needs change. If Costco becomes a trusted gateway into that process, it could potentially establish a relationship with older members that extends across numerous healthcare categories for years.
Costco’s Secret Weapon Is Trust
One of Costco’s most underrated competitive advantages is curation. Amazon and Walmart have built enormous businesses partly by offering customers huge selections. Costco has traditionally taken a different approach, carrying a relatively limited number of items and effectively telling members that its buyers have already done much of the work of determining what represents good value.
That strategy only works because customers trust the company. Costco members generally assume that the retailer has negotiated aggressively, examined the product and determined that it deserves space inside the warehouse. Medicare could test whether that same psychology works in a much more complicated category.
Many consumers do not want to spend hours comparing dozens of Medicare plans, deciphering insurance terminology and evaluating complicated benefit structures. A Costco-branded option could immediately attract attention simply because consumers already recognize and trust the name. If Costco can become a trusted gatekeeper for healthcare products in the same way it has become one for consumer products, that could create a valuable new competitive advantage.
There is also significant risk attached to that trust. A bad experience with a television or appliance is one thing; a bad experience with healthcare coverage is considerably more serious. If members encounter denied claims, network problems, confusing benefits or poor customer service, Costco’s reputation could suffer even if SCAN is responsible for administering the plan. Protecting the Costco brand will therefore be one of the most important considerations as the pilot develops.
Medicare Advantage Is Huge, But It Isn’t Easy Money
The potential market is enormous. Medicare represents hundreds of billions of dollars in annual business for insurers, while Medicare Advantage has grown into a major component of the American healthcare system. Private insurers receive government payments to provide Medicare benefits and often compete by offering additional benefits such as dental, vision, hearing and other services.
However, investors should not assume Costco has discovered an effortless new profit engine. Medicare Advantage has become more challenging for insurers in recent years as medical utilization has risen and reimbursement rules have changed. Higher medical expenses can quickly pressure margins, while government reimbursement decisions can dramatically affect profitability.
That environment makes Costco’s cautious approach particularly important. Rather than attempting an immediate nationwide launch, Costco is treating the program as a pilot. SCAN provides insurance expertise, while Costco provides distribution, healthcare infrastructure and consumer trust. Costco can therefore participate in the opportunity without immediately taking on the full complexity of becoming a major national health insurer.
Why Costco Doesn’t Need Medicare to Be a Huge Profit Center
Investors may be tempted to ask how much Medicare will add to Costco’s earnings. At this stage, that may be the wrong question. Financial terms of the SCAN partnership have not been disclosed, the rollout is limited and there is no guarantee Costco will eventually take the program nationwide.
A better question is whether Medicare can make Costco’s membership ecosystem more valuable over the next decade. Costco is already performing strongly without Medicare becoming a major contributor. During its fiscal third quarter of 2026, Costco reported approximately $69.15 billion in net sales, an increase of 11.6% from the previous year. Net income climbed to approximately $2.19 billion from $1.90 billion, while diluted earnings per share increased to $4.93 from $4.28.
| Metric | Fiscal Q3 2026 |
|---|---|
| Net sales | $69.15 billion |
| Net sales growth | 11.6% |
| Net income | $2.19 billion |
| Diluted EPS | $4.93 |
| Total comparable sales growth | 9.8% |
| Adjusted comparable sales growth* | 6.6% |
| Digitally enabled comparable sales growth | 21.5% |
*Adjusted for gasoline price and foreign-exchange effects.
Those numbers matter because they put the Medicare experiment into perspective. Costco does not need healthcare to rescue a struggling retail operation. Instead, it can afford to experiment with new services, measure customer response and expand only when management believes those services reinforce the broader membership model.
Costco Wants a Bigger Share of the Household Wallet
The Medicare partnership also fits a larger strategy that investors should watch closely. Traditional retailers compete primarily for shopping dollars, but Costco increasingly competes for a much larger share of household spending. Food, gasoline, prescriptions, eyeglasses, hearing aids, vacations, automobiles, insurance relationships and healthcare can all potentially flow through the Costco ecosystem.
That creates a reinforcing economic cycle. More members give Costco greater purchasing power, which can help it negotiate better prices. Better prices can attract and retain more members. A larger and wealthier membership base makes Costco more attractive to outside companies seeking distribution. Those partnerships can create additional membership benefits, which in turn can make Costco membership even harder to give up.
Medicare could become another piece of that flywheel. The direct insurance economics may ultimately be less important than the additional engagement Medicare creates with Costco’s pharmacies, optical centers, hearing services and warehouses.
What the Medicare Move Could Mean for Costco Stock
The Medicare partnership probably won’t materially alter Costco’s valuation by itself, at least initially. The rollout is limited, financial details haven’t been disclosed and Medicare Advantage comes with meaningful regulatory and medical-cost risks. Investors should therefore be careful about treating the announcement as a new earnings catalyst before there is evidence supporting that conclusion.
Strategically, however, the move reinforces several elements of the long-term Costco investment thesis. Additional healthcare services could strengthen membership retention, generate more pharmacy and warehouse traffic, increase utilization of Costco’s existing health businesses and improve the overall value proposition of membership. Perhaps more importantly, success could establish a template for Costco to expand further into healthcare, insurance and other high-value services.
The key question isn’t whether Costco can sell Medicare plans in three states. It is whether Costco can eventually demonstrate that its membership model and brand trust are powerful enough to influence consumer decisions far beyond conventional retail.
The Risks Investors Should Watch
Regulation represents one of the biggest risks. Medicare is heavily regulated, and reimbursement formulas, benefit requirements and marketing practices can change depending on decisions made in Washington. Costco is entering a market where government policy can have a direct impact on profitability and product design.
Medical-cost inflation is another concern. Rising healthcare utilization has already created pressure across parts of the Medicare Advantage industry, demonstrating that rapid enrollment growth does not necessarily translate into attractive profits. Costco’s partnership with SCAN reduces some of the operational burden, but it does not eliminate the underlying economic challenges of the market.
Brand risk may be even more important for Costco. The company has spent decades building extraordinary loyalty by convincing members that products carrying Costco’s endorsement offer strong value. Healthcare complaints could test that relationship in ways ordinary retail products rarely do. Costco management will therefore need to ensure that any expansion occurs without sacrificing the trust that makes the strategy attractive in the first place.
What Investors Should Watch Next
The first important development will be the disclosure of the three initial markets once regulatory approvals allow Costco and SCAN to provide more information. After that, investors should focus on enrollment, customer engagement, expansion and economics. Strong enrollment would suggest that Costco’s brand carries influence in healthcare, while increased utilization of Costco Pharmacy, Optical and hearing services could demonstrate the broader ecosystem benefits of the partnership.
Expansion may ultimately provide the strongest signal. A small pilot can help Costco learn about the business without taking significant risk. If the company eventually expands Costco-branded Medicare products into additional states, it would suggest management is seeing enough value to deepen the relationship. A nationwide or substantially larger Costco Medicare platform would represent a much more consequential development than today’s initial pilot.
The Investor Takeaway
Costco’s move into Medicare should not be mistaken for an attempt to transform itself into another UnitedHealth or Humana. The strategy appears much closer to what Costco has done successfully for decades: enter an expensive or confusing category, use an experienced partner where necessary, simplify the choices available to members and put Costco’s reputation behind the offering.
The immediate financial impact may be limited, but the strategic implications are much larger. Costco increasingly wants to become an indispensable platform for household spending rather than simply the warehouse where customers buy groceries once a week. Healthcare represents one of the largest and most recurring spending categories in America, making it a logical area for the company to explore.
For long-term Costco investors, the Medicare pilot is therefore less about how much insurance revenue Costco can generate next year and more about how far the company’s membership ecosystem can ultimately extend. Costco’s moat has traditionally been built around scale, purchasing power, low prices and extraordinary membership loyalty. Healthcare could add another dimension by allowing Costco to monetize something it has spent decades building: consumer trust.
If millions of aging Costco members eventually begin looking to the company not only for groceries, gasoline and vacations but also for prescriptions, vision care, hearing services and Medicare coverage, the Costco membership card could become considerably more valuable than it already is.
Bottom line: Costco’s Medicare pilot isn’t enough on its own to justify buying the stock, particularly because the economics of the SCAN partnership remain undisclosed. But it reinforces one of the strongest parts of the Costco investment thesis: the company continues finding new ways to increase the value of its membership ecosystem and capture a larger share of household spending without abandoning the model that created its extraordinary customer loyalty in the first place.
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