Medicare GLP-1 Guide · June 2026
Medicare GLP-1 Bridge Costco: Can You Use the $50 Copay?
Yes — once the Bridge launches July 1, 2026, Costco can fill a Bridge prescription. But Costco's $349 cash price and the $50 Bridge are two separate payment lanes you cannot combine. Here's how to know which one is yours.
By The RX Index Editorial Team · Last verified: June 3, 2026 · 16 min read
If you're on Medicare and you've seen two headlines lately — Medicare's new $50 GLP-1 Bridge, and Costco's discounted Wegovy and Ozempic — you're probably asking what a lot of other Medicare shoppers are trying to figure out: can you use the Medicare GLP-1 Bridge at Costco, and when does the $50 Bridge actually beat Costco's cash price? Here's the short answer: yes — once the program starts July 1, 2026, Costco can be the pharmacy where you pick up a Bridge-covered GLP-1. But the $50 Bridge and Costco's discount are two separate payment lanes you can't combine.
Pick your lane first (the 10-second version)
CMS Bridge rules and Costco prices verified June 3, 2026.
| If this is you | Your likely lane | First step |
|---|---|---|
| On Medicare Part D, meet the Bridge rules, taking Wegovy / Foundayo / Zepbound KwikPen for weight loss | Medicare GLP-1 Bridge ($50/mo) | Ask your doctor to file the Bridge approval on or after July 1, 2026 |
| Costco member, paying cash for Wegovy or Ozempic | Costco cash price (~$349/mo) | Confirm today's Costco price — and that no insurance is on the claim |
| Taking a GLP-1 for diabetes, sleep apnea, or heart disease | Your regular Part D plan | Check your plan's drug list and approval rules |
| No doctor yet and planning to pay cash | Sesame + Costco path | Get a clinician visit, then confirm the pharmacy fill |
| Not sure which one fits you | Our free path checker | Start the 2-minute Path Finder → |
Not sure where you land?
Take the free 2-minute Costco vs. Bridge Path Finder. It tells you whether your next move is the $50 Bridge, regular Part D, Costco cash, or a doctor visit — no sign-up, no sales pitch.
Take the free Path Finder →Can you use the Medicare GLP-1 Bridge at Costco Pharmacy?
Yes — once the Medicare GLP-1 Bridge launches on July 1, 2026, Costco Pharmacy can fill a Bridge-covered GLP-1. Pharmacies do not have to enroll. Participation is automatic, in all 50 states. The one thing that has to line up: your pharmacy must stock your exact drug and form and submit the claim through the Bridge's billing system — not Costco's cash discount.
So both things are true at once: Costco is your pharmacy, but Costco's member price is not the Bridge price. They're two different things that happen to meet at the same counter.
Why pharmacies don't need to sign up: CMS set up one central system to handle Bridge approvals, claims, and payments. The pharmacy bills that system using a dedicated routing code — BIN 028918, PCN MEDDGLP1BR — collects your $50, and gets paid back by CMS. Costco's pharmacies work like any other pharmacy here.
- Costco does not decide if you qualify. Your Medicare plan type, your diagnosis, your medicine, and your doctor's approval form decide that — not your Costco membership.
- The claim must run as a Bridge claim, not as a Costco cash discount. If the pharmacy runs it the wrong way, you'll see the cash price, not $50.
- Stock matters. A pharmacy might have one form of a drug and not another. Ask before you transfer, and bring your Medicare card so they can run the claim.
One line to remember: Costco can be your pickup spot, but Costco's member price is not the Medicare GLP-1 Bridge price.
$50 Bridge vs. Costco's cash price: which is cheaper?
For people who qualify, it isn't close. The Medicare GLP-1 Bridge sets your cost at a flat $50 per month. Costco's cash prices run about $149/mo for the Wegovy pill and around $349/mo for Wegovy or Ozempic injections — real savings off the $1,000-plus list price, but still about seven times the Bridge copay. Costco's cash deal only becomes your best move if you do not qualify for the Bridge.
| Medicare GLP-1 Bridge | Costco cash (member price) | |
|---|---|---|
| What you pay | $50/month, flat | ~$349/mo injection · ~$149/mo Wegovy pill |
| Who can use it | Medicare Part D members who meet the rules, for weight loss | Any Costco member with a valid prescription |
| Drugs covered | Wegovy (shot + pill), Zepbound KwikPen, Foundayo | Wegovy, Ozempic (Costco's published GLP-1 cash prices don't include Zepbound) |
| Where you fill it | Any pharmacy, including Costco | Costco Pharmacy |
| Uses your insurance? | Runs outside Part D (separate CMS system) | No — it's cash |
| Time limit | Ends December 31, 2027 | Ongoing |
| Bottom line | The cheap path — if you qualify | The fallback — if you don't |
Costco's prices change by dose and by limited-time offer, so here's a closer snapshot to take with you.
| Drug & form | Costco self-pay (June 2026 snapshot — verify current) | On the $50 Bridge? | If you're on Medicare |
|---|---|---|---|
| Wegovy injection | ~$199/mo for first two fills of lowest doses (through ~June 30, 2026), then ~$349/mo | Yes | Use the Bridge if eligible — $50 beats $349 |
| Wegovy pill | from ~$149/mo (lower strengths) up to ~$299/mo | Yes | Use the Bridge if eligible |
| Ozempic | ~$199/mo intro on lowest doses, then ~$349/mo; up to ~$499/mo at highest dose | No for weight loss | Diabetes → your regular Part D plan |
| Zepbound KwikPen | Not on Costco's published GLP-1 cash list; ~$299–$449/mo through LillyDirect | Yes (KwikPen only) | KwikPen → the Bridge if eligible |
Prices above are a June 2026 snapshot and shift by dose, location, and offer window. Confirm the current number at Costco before you transfer. One note: Costco's prices aren't a secret Costco-only number — Novo Nordisk and Eli Lilly set that self-pay price, so you'll see similar numbers through NovoCare, LillyDirect, and other pharmacies.
Can you stack Costco's discount with the $50 Bridge?
No — and this is the single most important rule on this page.
You can't combine Costco's member discount with a Medicare GLP-1 Bridge claim, or with any Medicare claim at all. Costco says its discount program is not insurance, and that claims billed to Medicare, Medicaid, or private insurance aren't eligible for it. CMS says coupons and discount programs can't be applied to Bridge claims. Each prescription fill runs down one lane only.
Think of it as three lanes that never merge:
- Bridge lane: Bridge rules, $50 copay. No coupons. No discount cards.
- Costco cash lane: Costco's member discount. No Medicare, no Medicaid, no insurance on that claim.
- Regular Part D lane: Your plan's normal rules and costs.
The honest part: if you truly qualify for the Bridge, Costco's cash price is probably the wrong first move for you — you'd pay around $349 when you could pay $50, and you can't bolt Costco's discount onto the Bridge to do better.
The flip side: if you don't qualify for the Bridge, Costco's cash price is a fair, legitimate option at a store you already trust. And one honest tradeoff to know up front — the Bridge's $50 doesn't count toward your yearly Part D out-of-pocket limit. For some people on many prescriptions, regular Part D can leave you better off over a full year.
Don't get quoted the wrong price. Check your billing lane in 2 minutes.
Check my lane for free →Which GLP-1 drugs work with the Bridge — and which Costco prices are cash-only?
The Bridge covers a short, specific list: all forms of Foundayo, Wegovy in both the injection and the pill, and the Zepbound KwikPen. It does not cover the Zepbound single-dose vial or single-dose pen, and it does not cover Ozempic or Mounjaro as weight-loss drugs. So a Costco price you see for Ozempic, or for a Zepbound vial, is a cash price — not something the $50 Bridge will match.
| Drug / form | Works with the $50 Bridge? | Notes |
|---|---|---|
| Foundayo (orforglipron, a pill) | Yes | All forms are on the CMS Bridge list |
| Wegovy injection | Yes | On the Bridge list |
| Wegovy pill (tablet) | Yes | On the Bridge list |
| Zepbound KwikPen | Yes | This is the specific Zepbound form CMS put on the list |
| Zepbound single-dose vial | No | Not a Bridge form — ask about the KwikPen if the Bridge is your goal |
| Zepbound single-dose pen | No | Not a Bridge form |
| Ozempic | No (for weight loss) | May be covered by regular Part D for type 2 diabetes |
| Mounjaro | No (for weight loss) | May be covered by regular Part D for type 2 diabetes |
| Compounded “semaglutide” or “tirzepatide” | No | Not FDA-approved finished drugs; not part of the Bridge |
CMS lists all forms of Foundayo, all forms of Wegovy, and the KwikPen form of Zepbound. The Zepbound single-dose vial and single-dose pen are not Bridge forms.
Quick definitions: Foundayo is the brand name for orforglipron, a newer GLP-1 pill. The Zepbound KwikPen is one specific version of Zepbound made by Eli Lilly — different from Zepbound's vials and single-dose pens. A 30-second check before the prescription goes in can save you a wasted trip to Costco.
A clear line on compounded GLP-1s
You'll see online ads for “compounded semaglutide” at prices far below $349. The short version for a Medicare reader is simple: compounded GLP-1s are not FDA-approved finished medications, and they are not part of the Medicare GLP-1 Bridge. When you can get an FDA-approved drug for $50, a compounded product usually isn't the smart trade for this group.
Do you qualify for the $50 Bridge if you shop at Costco?
Costco membership has nothing to do with it. The Medicare GLP-1 Bridge sets its own rules: you must be in an eligible Medicare drug plan, be prescribed the medicine for weight loss, and meet one of three weight-and-health “tiers.” Meeting any single tier gets you the same $50.
1) Your plan type
You need to be in a standalone Part D drug plan (a “PDP”) or a Medicare Advantage plan that includes drug coverage (an “MA-PD”). Some plan types are not eligible on their own — including PACE programs, private fee-for-service plans, and certain cost plans. People with low-income help (Extra Help) and people with both Medicare and Medicaid can take part if they're in an eligible plan type and meet the rules.
2) Your weight-and-health tier
CMS uses three pathways. You only need to fit one.
Tier 1
BMI ≥ 35
No other condition needed.
Tier 2
BMI ≥ 30
Plus: heart failure with preserved ejection fraction, uncontrolled high blood pressure, or chronic kidney disease (stage 3a+).
Tier 3
BMI ≥ 27
Plus: pre-diabetes, a past heart attack, a past stroke, or symptomatic peripheral artery disease.
The medicine also has to be paired with a lifestyle plan — basic nutrition and activity guidance in line with the drug's label.
3) The timing — and a rule that helps you
The Bridge starts July 1, 2026. Your doctor's office can't file the approval before then. Here's the helpful part: CMS measures your BMI at the time you started the GLP-1, not at the time of the approval. So if you began a GLP-1 in 2024 at a BMI of 37 and you've since dropped to 34, your doctor can still confirm that you met the BMI-35 line when you started. You don't get punished for losing weight.
Bring this to your doctor
- ☐ My Medicare plan type: standalone Part D (PDP) / Medicare Advantage with drugs (MA-PD) / other
- ☐ The exact drug and form I want: e.g., Wegovy pill, Zepbound KwikPen
- ☐ What it's for: weight loss / diabetes / heart disease / sleep apnea
- ☐ My BMI when I first started a GLP-1: ______
- ☐ My qualifying condition, if any: ______
- ☐ My lifestyle plan (nutrition and activity): ______
- ☐ My question: “Can you file the Bridge approval for me on or after July 1, 2026?”
Prefer to confirm with the source? Medicare's own help line is 1-800-MEDICARE (1-800-633-4227), 24/7, and Medicare.gov posts official Bridge details.
Full Bridge eligibility breakdown →Bridge, regular Part D, or Costco cash — which lane is actually yours?
Below is the routing matrix we built by stacking the CMS Bridge rules, Costco's program terms, and current drug prices into one table. To get this anywhere else, you'd have to open the CMS pages for beneficiaries, providers, and pharmacies, Costco's discount terms, and three drugmaker price pages — and then build the grid yourself.
| Your situation | Most likely lane | What Costco can do | Stack Costco discount? | Counts toward Part D cap? | Your next move |
|---|---|---|---|---|---|
| Eligible Part D, meet a Bridge tier, eligible drug/form, for weight loss | Medicare GLP-1 Bridge ($50) | Be your pickup pharmacy if it stocks the form and runs the Bridge claim | No | No | Ask your doctor to file the Bridge approval on/after July 1, 2026; ask Costco about Bridge billing + stock |
| Want Wegovy injection, paying cash | Costco cash | Fill at the posted member price | No insurance on the claim | No | Confirm today's Costco price and that it's a cash claim |
| Want the Wegovy pill, paying cash, but you're Bridge-eligible | Bridge beats cash | Either, but the lanes can't mix | No | No | Decide Bridge vs cash before the pharmacy runs it |
| Ozempic for type 2 diabetes | Regular Part D (subject to plan rules) | Fill as your plan pharmacy | No (Part D claim) | Yes | Check your plan's drug list and approval rules |
| Ozempic for weight loss only | Not the Bridge — cash or another route | Fill cash if appropriate and in stock | No | No | Talk to your doctor about the right drug |
| Want Zepbound KwikPen for weight loss, meet the rules | Medicare GLP-1 Bridge ($50) | Pickup pharmacy if it stocks the KwikPen and runs the Bridge claim | No | No | Make sure the script says KwikPen (not vial/pen) |
| GLP-1 for sleep apnea or liver disease (MASH) | Regular Part D (subject to plan rules) | Fill as your plan pharmacy | No | Yes | Use your plan's normal process, not the weight-loss Bridge |
| No doctor yet, planning to pay cash | Sesame + Costco | Fill if appropriate and available | No | No | Get a clinician visit first; confirm medicine + pharmacy details |
Landing in the “regular Part D lane” doesn't mean the drug is automatically paid. Your plan still has its own formulary and approval rules, so coverage and cost depend on your specific plan.
The good-news branch: if you take a GLP-1 for diabetes, sleep apnea, or heart disease, you may already have a path through your regular Part D plan — and that route does count toward your yearly drug-cost cap. See the full Medicare GLP-1 Bridge guide for details.
What if you have diabetes, sleep apnea, or a heart condition?
Then the Bridge isn't your lane — and that's usually a good thing. If you have type 2 diabetes, obstructive sleep apnea, MASH, or you're using Wegovy for heart protection, GLP-1s run through your regular Medicare Part D plan. That spending counts toward Medicare's yearly out-of-pocket drug cap — $2,100 in 2026, rising to $2,400 in 2027. The Bridge's $50 copay does not count toward that cap.
| Your use | Likely lane | Counts toward your Part D cap? | Why it can beat $50 over a full year |
|---|---|---|---|
| Type 2 diabetes | Regular Part D | Yes | Spending counts toward your cap, which then protects all your drugs |
| Sleep apnea (Zepbound) | Regular Part D | Yes | Once you hit the cap, your other prescriptions are protected too |
| Heart disease (Wegovy) | Regular Part D | Yes | Same cap protection benefit applies |
| Weight loss only | The Bridge, if eligible | No | $50 flat is far below cash, even though it doesn't count toward the cap |
Ask your plan if your GLP-1 is on its formulary, what approval (prior authorization) it needs, and what your share of the cost is. CMS has said it will watch plans to make sure they don't push a covered prescription onto the Bridge when it really belongs in regular Part D.
How to fill a Medicare GLP-1 Bridge prescription at Costco, step by step
The safe order: confirm your drug and form, have your doctor file the Bridge approval on or after July 1, 2026, then call Costco to confirm it can stock that exact form and run the claim as a Bridge claim — not a cash discount. Never assume a Costco price you're quoted means the Bridge was applied. Ask which claim was run.
Lock the drug and form.
Make sure it's a Bridge-eligible item: Foundayo, Wegovy injection, Wegovy pill, or the Zepbound KwikPen (not the vial or single-dose pen, and not Ozempic for weight loss).
Confirm the reason.
Weight loss points to the Bridge lane. Diabetes, sleep apnea, or MASH points to your regular Part D lane.
Ask your doctor (on or after July 1, 2026). Copy this:
“I'm trying to use the Medicare GLP-1 Bridge. Can you file the Bridge approval and document my BMI at the time I started a GLP-1, my qualifying condition, and that this is for weight management — and confirm the drug and form are on the Bridge list?”
What to ask your local Costco before you transfer
Stock and the right claim are the two real Costco-specific snags. Call first and copy this:
“I have a prescription for [drug and form]. I want to use the Medicare GLP-1 Bridge, not the Costco Member Prescription Program cash price. Can you confirm you're able to run a Bridge claim through the CMS central processor, and that you can stock or order [drug/form]?”
If they want the technical detail, the Bridge uses a dedicated billing code — BIN 028918, PCN MEDDGLP1BR. Bring your Medicare card so they have your Medicare number to run the claim.
At pickup, ask one question:
“Was this run as the Bridge, regular Part D, or cash?”
If you're being charged around $349, it was almost certainly run as cash, not the $50 Bridge. Stop and ask them to check the claim.
No prescriber yet? Where Sesame + Costco fits
If you don't have a prescriber and you expect to pay cash, Sesame is the most relevant option here — it's Costco's own prescription partner. Through Success by Sesame, Costco members can get a virtual clinician visit and, when appropriate, a prescription to fill at Costco's cash price. Sesame says its weight-loss program starts as low as about $59 a month on an annual plan, with the medication billed separately. This is a cash and clinician-access path — not a guaranteed way into the $50 Medicare Bridge.
Good fit if you:
- Are a Costco member
- Need a clinician to evaluate you and write a prescription
- Are comfortable paying cash for the visit and medicine
- Want to fill at your local Costco if it has the drug in stock
Wrong fit if you:
- Only want the $50 Bridge (your own doctor files that approval — you don't need a cash service)
- Assume a Sesame visit automatically means Bridge approval. It doesn't.
What we could and couldn't verify, so you book with clear eyes:
| Sesame + Costco detail | Did we verify it? |
|---|---|
| Costco members get discounted virtual care; the weight-loss program starts around $59/mo on an annual plan | Yes (Sesame) |
| Includes a clinician visit and access to weight-loss prescriptions when appropriate | Yes (Sesame) |
| Medication is billed separately from the program fee | Yes |
| Can file a Medicare GLP-1 Bridge approval for you | Not verified — ask Sesame directly |
Before you book, ask their team: Is the medication cost included or separate? Can they send the prescription to Costco Pharmacy? What happens if the pharmacy can't stock your exact form? What's the refund policy if the medicine route doesn't work out?
No prescription yet and planning to pay cash?
See if Success by Sesame fits your situation.
See if Success by Sesame fits →Don't qualify for the Bridge? Your real cash options
If you don't qualify, your next lane might still be regular Part D (some plans cover a GLP-1 with an exception or appeal, depending on your diagnosis). But for many people it means paying cash. Costco is one option (~$349 injection, ~$149 Wegovy pill). The drugmakers sell direct at similar prices through NovoCare and LillyDirect. And for FDA-approved brands with clinician support built in, Ro is an option, especially for Zepbound or Foundayo, which Costco's published cash page doesn't list.
Here's how the cash lanes compare. Prices move, so treat them as a current snapshot to verify.
| Cash option | What you pay (snapshot — verify current) | Good for | Notes |
|---|---|---|---|
| Costco cash | ~$349/mo injection · ~$149/mo Wegovy pill | Members who want a familiar store | Need a valid Rx; matches the drugmaker price |
| NovoCare (Wegovy / Ozempic direct) | ~$349/mo standard · ~$199/mo for the first two fills of the lowest doses | Wanting it shipped from the maker | Self-pay only; intro pricing expires |
| LillyDirect (Zepbound / Foundayo direct) | Zepbound ~$299–$449/mo by dose · Foundayo ~$149–$399/mo by dose | Prefer tirzepatide or a pill | Self-pay only; refill-window rules |
| Ro (FDA-approved brands + clinician) | Membership from $39 the first month (as low as $74/mo on the annual plan paid upfront, otherwise $149/mo) — plus medication billed separately | Want Zepbound or Foundayo with built-in support | Cash-pay telehealth, not Medicare; carries Zepbound (tirzepatide) and Foundayo (orforglipron) |
A note on Ro for Medicare readers: Ro is a cash-pay telehealth service, not a Medicare plan, and it is not the Bridge. The membership fee is separate from the cost of the medication. It can make sense if you don't qualify for the Bridge and you want Zepbound or Foundayo, with a clinician and refills handled in one place. If you do qualify for the Bridge, the $50 path beats any cash price — check that first.
Want to compare cash-pay GLP-1 prices in one place?
Ro link is an affiliate link. We may earn a commission at no extra cost to you.
What can go wrong at the Costco counter — and how to fix it
Most Bridge-at-Costco problems trace back to five things: the wrong payment lane, the wrong drug form, a missing approval, local stock issues, or mistaking a cash quote for a Bridge claim. The fix is almost always to ask one question — “which claim did you run?” — before you pay or transfer.
| What happened | Likely cause | What to do |
|---|---|---|
| Costco quotes $349 instead of $50 | They ran the cash price, not the Bridge | Ask them to re-check and run it as a Bridge claim |
| The claim denies under Part D | It's a weight-loss claim that doesn't belong in regular Part D, or an approval issue | Ask whether the Bridge applies, or whether your use belongs in regular Part D |
| Costco has Wegovy but not the Zepbound KwikPen | Stock or form mismatch | Ask if they can order it, or if another in-stock eligible form is appropriate |
| Your doctor wrote a Zepbound vial | That form isn't on the Bridge list | Ask the doctor about the KwikPen if the Bridge is the goal |
| You qualify but still get denied | Paperwork or approval gap | Ask for the denial reason and have the doctor document your BMI-at-start and condition |
| You need the medicine before July 1, 2026 | The Bridge isn't live yet | Compare regular Part D, cash, or your doctor's options until launch |
| Costco says the discount can't be used | A Medicare or insurance claim is on it | Don't try to combine them — pick one lane |
If a claim won't process and you're stuck, our Medicare GLP-1 Bridge and the Part D coverage gap guide walks through denials and next steps in more detail.
What about the cheaper “compounded” GLP-1s you see online?
You'll find online ads for compounded semaglutide or tirzepatide priced well under $349. For a Medicare beneficiary who can get an FDA-approved brand for $50 through the Bridge, that's usually not the better deal. Compounded GLP-1s are not FDA-approved finished medications, the FDA does not review them for safety, effectiveness, or quality before they're sold, and they are not part of the Medicare GLP-1 Bridge.
A compounded drug is mixed by a pharmacy rather than manufactured and approved as a finished product by the FDA — and large-scale semaglutide and tirzepatide compounding has been restricted since the FDA declared those drug shortages resolved in 2025. We don't treat them as interchangeable with brand-name Wegovy, Zepbound KwikPen, or Foundayo.
If you qualify for the Bridge, $50 for an FDA-approved medicine beats a compounded product on both cost and peace of mind. If you don't qualify and you're weighing options, that's a conversation to have with a licensed clinician who knows your history.
What happens after December 31, 2027?
The Bridge is scheduled to end on December 31, 2027. It's meant to be a temporary bridge to a longer-term program called the BALANCE Model — but the Medicare Part D piece of BALANCE has already faced delays, so coverage after the Bridge ends is not guaranteed.
We're flagging this on purpose. In a study of semaglutide (the STEP 1 trial extension), people regained about two-thirds of the weight they'd lost within a year of stopping the medication. So if the Bridge is your only affordable path and it ends at the close of 2027, ask yourself — and your doctor — what the plan is if the price jumps back up. That doesn't mean don't start. It means start with eyes open, and keep an eye on CMS updates. We update this page as they do.
What we actually verified for this guide
Last verified: June 3, 2026. Pricing, CMS rules, and Costco's terms all change. Here's what we confirmed on June 3, 2026, where we got it, and what still needs a fresh check before you act.
Last verified: June 3, 2026
| What we checked | What we verified | Source | Re-check |
|---|---|---|---|
| Bridge start date | July 1, 2026 | CMS | Quarterly |
| Bridge end date | Currently December 31, 2027 | CMS | Quarterly |
| Patient cost | $50/month, flat | CMS | Quarterly |
| Eligible drugs/forms | Foundayo (all forms), Wegovy injection + pill, Zepbound KwikPen | CMS | Monthly |
| Zepbound vial / single-dose pen | Not Bridge forms | CMS | Monthly |
| $50 vs. the Part D cap | The $50 does not count toward your cap; Extra Help doesn't lower it | CMS | Quarterly |
| Part D cap amounts | $2,100 (2026), $2,400 (2027) | CMS / KFF | Annually |
| Coupons/discounts on Bridge claims | Not allowed | CMS | Quarterly |
| Costco discount + Medicare | “Not insurance”; can't be billed under Medicare/Medicaid/insurance | Costco | Quarterly |
| Costco cash prices | June 2026 snapshot; change by dose and location | Costco | Monthly |
| Manufacturer cash prices | NovoCare / LillyDirect ranges as listed | NovoCare / LillyDirect | Monthly |
| Ro pricing | Membership fee + medication billed separately | Ro | Monthly |
| Sesame Bridge-approval support | Not verified — confirm with Sesame | — | Until confirmed |
| Local Costco Bridge readiness | Not verified — call your store near launch | — | At/after launch |
How we built the Costco-vs-Bridge routing matrix
We didn't summarize one article. We combined the CMS Bridge pages for beneficiaries, providers, and pharmacies; Costco's Member Prescription Program terms; Sesame's Costco program details; current drugmaker prices from NovoCare, LillyDirect, and Ro; and policy analysis from KFF — then turned the rules into one decision grid, a pharmacist script, and a checklist.
Our source order, most authoritative first:
- CMS pages for Bridge rules, eligibility, drugs, and pharmacy billing.
- Costco for cash/member pricing and the no-combining terms.
- Sesame, NovoCare, LillyDirect, and Ro for clinician access and current cash prices.
- KFF, NPR, and Humana for policy and consumer framing.
- Public forums for language only — to understand the confusion people describe — never as evidence for medical, pricing, or coverage claims.
Commissions never change the coverage lane we recommend — the Bridge, your Part D plan, and cash options are ranked by what saves you money, not by what pays us. If we stripped every link from this page, the routing matrix, the scripts, and the verified numbers would still make it the most useful page on this exact question.
FAQ: Medicare GLP-1 Bridge and Costco
Is the Medicare GLP-1 Bridge available at Costco?
Potentially yes, starting July 1, 2026. Pharmacies do not have to sign up for the Bridge -- participation is automatic and nationwide -- so Costco Pharmacy can process Bridge claims like any pharmacy, as long as it stocks your exact drug and form and runs the claim correctly. The Bridge is a CMS program, not a Costco discount.
Is Costco's $349 Wegovy price the same as the Medicare GLP-1 Bridge?
No. Costco's roughly $349 is a cash/member price. The Medicare GLP-1 Bridge is a separate $50 monthly copay for eligible Part D members. If you qualify, $50 is far cheaper.
Can I use the Costco Member Prescription Program if I'm on Medicare?
Not on a Medicare claim. Costco says its discount program is not insurance, and that claims billed to Medicare, Medicaid, or private insurance are not eligible for it. You can still use Costco's discount as a cash price; you just cannot run that same fill through Medicare too. Pick one lane per prescription.
Can I combine Costco's discount with the $50 Bridge?
No. CMS says coupons and discount programs cannot be applied to Bridge claims, and Costco says its discount cannot be billed alongside Medicare Part D. Each fill runs down one lane.
Does the $50 Bridge copay count toward my Part D yearly cap?
No. The $50 runs outside your Part D plan, so it does not count toward your deductible or the yearly out-of-pocket cap ($2,100 in 2026, $2,400 in 2027). Low-income Extra Help does not lower it either.
Do I need Part D to use the Medicare GLP-1 Bridge?
Yes. You must be in an eligible standalone Part D plan (PDP) or a Medicare Advantage plan with drug coverage (MA-PD) and meet the clinical rules.
Is the Wegovy pill covered by the Bridge?
Yes. CMS lists Wegovy tablets as Bridge-eligible when your claim meets the rules.
Is Ozempic covered by the Bridge?
Not as a weight-loss drug. Ozempic may be covered through your regular Part D plan for type 2 diabetes, depending on your plan and its approval rules.
Is Zepbound covered by the Bridge?
The Zepbound KwikPen is. The Zepbound single-dose vial and single-dose pen are not Bridge-eligible forms, so confirm your prescription is written for the KwikPen if the Bridge is your goal.
Do I have to be a Costco member to use the Bridge?
No. Bridge eligibility is a set of Medicare rules, not a Costco rule. Membership only affects Costco's cash and member prices.
What if my local Costco doesn't have the right drug?
Ask if they can order your exact form, whether a nearby Costco has it in stock, or whether your doctor can send the prescription to another pharmacy that can run the correct claim.
What should I ask before transferring my prescription to Costco?
Ask whether they can stock your exact drug and form, whether they can run a Bridge claim once it is live, whether the quoted price is Bridge, Part D, or cash, and what denial code appears if it does not process.
What happens after December 31, 2027?
The Bridge is set to end then. It is meant to transition to the BALANCE Model, but the Medicare Part D portion has faced delays, so coverage after 2027 is not guaranteed. Watch CMS for updates.
Still deciding?
The honest bottom line: if you qualify, the $50 Medicare GLP-1 Bridge — fillable at Costco — is your cheapest path, full stop. If you have diabetes or another covered condition, your regular Part D plan is the door. If neither fits, Costco's cash price (or a drugmaker program) is a fair option, with Sesame as the way to get a prescription.
The trick is just knowing which lane is yours before you call the pharmacy.
Take the free 60-second GLP-1 matching quiz →The RX Index is a pricing intelligence and comparison resource for GLP-1 telehealth providers. This guide is for education and cost comparison only. It is not medical, insurance, legal, or pharmacy-billing advice. Your eligibility, coverage, prior authorization, medication choice, and pharmacy options are determined by CMS rules, your Medicare plan, your prescriber, and the pharmacy. Some links on this page are affiliate links; if you start a plan through them, The RX Index may earn a commission at no additional cost to you. Commissions never change the coverage lane we recommend.
Sources
- CMS — Medicare GLP-1 Bridge overview: cms.gov/medicare/coverage/prescription-drug-coverage/medicare-glp-1-bridge
- CMS — Information for Medicare Beneficiaries
- CMS — Information for Providers
- CMS — Information for Pharmacies
- CMS — Press release ($50 monthly access)
- KFF — What to know about the BALANCE Model and the Medicare GLP-1 Bridge
- NPR — Medicare to launch weight-loss drug option in July with $50 copay
- Humana — Does Medicare cover GLP-1 weight-loss drugs
- Costco — Member Prescription Program (terms and FAQ)
- Sesame — Costco weight-loss program announcement
- NovoCare / Wegovy self-pay pricing: wegovy.com
- LillyDirect / Zepbound self-pay pricing: lillydirect.lilly.com
- Ro — Weight Loss Program pricing: ro.co/weight-loss/pricing/
- FDA — Concerns with unapproved GLP-1 drugs used for weight loss
- Wilding JPH et al. — Weight regain after withdrawal of semaglutide (STEP 1 extension), PubMed 35441470